Thread Number: 92054  /  Tag: Modern Dryers
brand new Bosch Home Professional tumble dryer made weird knocking noises. What was the problem ?
[Down to Last]

automaticwasher.org's exclusive eBay Watch:
scroll >>> for more items --- [As an eBay Partner, eBay may compensate automaticwasher.org if you make a purchase using any link to eBay on this page]
Post# 1166073   12/9/2022 at 11:52 (502 days old) by wholelottared (Turkey)        

Hello everyone. I've been following this forum quietly since years. I always loved reading it, and was grateful about how helpful everyone here is. Recently I experienced something bad that led me to finally create an account here and make this post haha. So this will be my first post, I'm sorry if I make any mistakes in the post structure etc.

This will be a really long story/post, but I know how helpful and dedicated people here are so I'm sure there will be someone who can help me too. Thank you so much.

So, I never had a tumble dryer before, and I finally wanted to buy one. I've been using a Bosch Home Professional washing machine since years, and i'm still in love with how beautiful it looks, and how it's programmed, etc. So of course a brand new Bosch Home Professional tumble dryer was my first choice, since it had the matching design, and I just love how modern their display looks etc. I knew some of the negatives of the Bosch dryers such as no reverse tumbles etc, but I still went with it.

I had three main criterias to choose a dryer, and this one had it all so I bought it.
1. Being heatpump & being A+++
2. Being 62db or lower
3. Good quality & good design/feeling

I ended up buying this Bosch A+++ Home Professional WTX87EH0TR model: www.bosch-home.com.tr/uru...

I live in Turkey, so it has the WTX87EH0TR model code, but the same device is available in other countries too. For example in Poland it'S WTX87EH0PL, in Europe it's WTX87EH0EU, in UK it's WTX88EH9GB etc etc.

The machine arrived after weeks, and I was so excited to use it. It had the 0209 FD code at that time, meaning it was brand new and just left the factory some weeks ago haha.

The first week, everything was okay. And I was in love with it.

After the second and third week, it started to make a really weird and audible knocking noise. To detail, it wasn't making the noise right after I started the machine, but as it was running and getting hotter, it was starting to knock. So it was doing this constant knocking noise only when it got hot. It drove me crazy because it was audible even when I closed the doors.

Here is a video of the problem after I finished drying some clothes, where you can hear it completely even though the drum is empty:

Video 1: http://youtube.com/shorts/5rwGS_a68qo

Video 2: http://youtube.com/shorts/rXsz7mrWbWA

So I called the service, and they came to my house countless times, saying that the noise is ''completely normal'' and there was nothing else they could do. Some didn't even wait for it to run a bit, because normally the knocking noise was getting more and more annoying as it was getting hot. It made me so angry, because the device was literally only three weeks old and it was knocking. I was sure that the other people who also have Bosch dryers didn't have this noise, even the one who uses the same model as me.

So I kept contacting the service, and they took device, then called me a week after, saying they changed 2 parts of it, saying it was faulty, and they said now it's fixed. After this I was even more angry because I paid so much for this thing (it was the most expensive model) and it already went to repair.

I told them that I don't accept that repair, and I requsted my device to be changed with a new one. They finally accepted it and changed my device with a new one. So months later they accepted the exchange, and I'm still waiting for the new machine to arrive (the same model).

Thank you for reading until here, now I can finally ask my questions I guess. Some of the questions might be a bit off-topic compared to the problem I talked about, but I always had those questions in mind too so I'll ask them.

1 (most important question). What could be the reason of this sound on a brand new device? Was it really ''normal'' as the service said? Do you have any guesses where it could be coming from?

2. If this noise is really normal as they said, will my new exchanged device have this noise too? (I still don't think it's normal though because my friends who also use a Bosch dryer they all said they don't have this noise.)

3. Since my device is ''A+++'' does that only affect the ''cottons cupboard dry'' program or is it an A+++ device in general, for all programs included? Because I normally use the ''Mix'' program, since I dry cottons and synthetics together most of the time. And I fear the cottons program might damage some clothes so I use Mix instead. Is Mix A+++ too overall, or only cottons?

4. I realized that the same model in Germany (WTX87E40 and WTX87E90) has 59db rating instead, and I couldn't find any models outside of Germany who has 59db rating. The lowest one they have is 62db, which I had. What is the reason for this ? Is the same device in Germany using a better, quieter motor or something ?

5. At the first, I chose this device, because it had the ''AutoClean'' system unlike the old ''SelfCleaning Condenser'' ones. So these ones probably won't get clogged, since I can reach the condenser unlike older models. My question is, this device doesn't have that classic double filter in the door since it's AutoClean. So if I buy that double filter which is used on other models and add it to mine, would it damage anything or make the sensors etc misbehave or block the air flow? (So basically I'll make it have three filters, one in front of the condenser, two on the door, + AutoClean.) I feel like adding that additional fiter could really add to the device's lifetime, so i'm thinking to do it on my new device when it arrives. What do y'all think? Would it cause any problems?

6. To note, if my new device also makes the same noise when it arrives, I'm thinking to refund it and buy an Electrolux dryer instead.

This is all. I know it was ultra lengthy to read, sorry for that, but y'all are the only ones who can help me and answer my questions. Once again, thank you so much. I'll be waiting for the replies and discussion. Y'all can ask me any questions if you have any, and I would gladly reply.


CLICK HERE TO GO TO wholelottared's LINK





Post# 1166077 , Reply# 1   12/9/2022 at 13:09 (501 days old) by cfz2882 (Belle Fourche,SD)        
keep the Bosch

probably the wheels the drum rolls on became temporarily "flat-spotted" the same thing happened to my ~2010 Asko dryer:the wheels started knocking,knocked for a few weeks,then stopped and hasn't knocked in years :) Welcome BTW,you live in an interesting and wonderful country :)

Post# 1166084 , Reply# 2   12/9/2022 at 16:47 (501 days old) by Mrlaundry1011 (South Wales, UK)        

Your device will be A+++ on any cycle, the only difference is with hybrid dryers with speed selected but this doesn’t apply to yours.

The knocking noise is frequent with Bosch models. I know someone’s who’s had to have a drum replacement, mine also knocked constantly and needed a bearing replaced at a few months old. My Beko hybrid and my partners same model now has a ‘heart beat’ thud due to flat spots on the rollers but this happens after years of use.

Personally I wouldn’t bother adding the normal drum filters, with Bosch auto cleaning the extra filters won’t really do anything but need more maintenance :)


Post# 1166149 , Reply# 3   12/10/2022 at 00:33 (501 days old) by wholelottared (Turkey)        

Oh wow it's sad to hear the noise is popular on Bosch models :( What a weird problem. I wish I went with Electrolux instead at the start :( I hope my new device that's currently coming doesn't do it.

Also are you sure I shouldn't add the normal filters? With that way, I was trying to make sure none of the lint/fluff reaching the inside of the machine. By maintenance if you meant you'll need to clean more filters manually then you're right haha.


Post# 1166159 , Reply# 4   12/10/2022 at 07:04 (501 days old) by wholelottared (Turkey)        

Are there any other ideas from other people too? Not all of my questions are answered yet haha

Post# 1166180 , Reply# 5   12/10/2022 at 12:45 (500 days old) by Logixx (Germany)        

logixx's profile picture
1) Definitely not normal. My Serie|8 is two years old now and does not make that sound. Never did. It will make the quick thumbing sound right after starting, which comes from the drum roller. But that sounds very different from what you have.

3) It's technically equally efficient on all cycles, as the heat-pump is either on or off (until the (re-) launch of inverter compressors next year).

I would imagine that the hot Quick|Mix cycle is maybe a little more efficient, as the dryer uses all the heat it generates to dry clothes quicker, rather than starting to vent "excess" heat through the bottom right. Kind of silly, when you think about it. It's like opening your windows at home when it's too hot, instead of turning the heat down. So much for energy efficiency.

4) I, too, was trying to find out how there's 59dB models. However, the exploded views of these are the same - so it's not like there's more insulation in the quieter models. 🤷🏻‍♂️

5) Yeah, the two extra filters mean more maintenance. I'd only bother if you see significant lint of the condenser.


Post# 1166184 , Reply# 6   12/10/2022 at 13:14 (500 days old) by wholelottared (Turkey)        

Thank you so much for your reply, @Logixx . I guess you can't reply to posts here so i'm writing like this. Happy to hear it's not normal, because that means the exchanged device probably won't have the noise. Also, yeah I realized that the heat pump never turns off on mine until it finishes (except the AutoCleaning stage). Does this mean are all the programs using the same temperature to dry? For example, are the Cottons and Mix programs using the same temperature to dry clothes, with only times differing between them? I could've waited a year to buy a dryer to be honest, but I didnt know Bosch was going to use inverter pumps on their next models, so I bought the current flagship device. I just checked and it looks like they're only gonna renew the Serie 8's and not the Home Professional's (with the tft screen) yet, so I would've been probably bought this same device next year too. What differences a inverter pump makes? Am I losing too much or does it not matter lol. Thank you for the replies again, would be grateful for the next replies too if someone have anything to say.

Post# 1166194 , Reply# 7   12/10/2022 at 14:12 (500 days old) by Logixx (Germany)        

logixx's profile picture
Inverter heat-pumps can change the speed they are running at. Previous TOL BSH dryers used to have ecoPerfect and speedPerfect options to either de- or increase the speed and thus heat output of the heat-pump. These new dryers will will only have the speed option, which will naturally be promoted as something brand new (just like the fact that their dryers are reversing... again).

On the current range, yemp is only controlled via the little fan in the base of the dryer. To (theoretically) prevent high temps, the fan sucks air through the cabinet and removes some heat from the dryer. It's not like on their vented/condenser dryers, where the element would run at full/half/half intermittent power to achieve different temps.

I will say that these dryers can get pretty hot. Both MrLaundry101 and I have posted temps to our YouTube Community Tabs, with some instances of over 70C during drying. Essentially, the longer the dryer runs, the hotter it gets. The small fan doesn't do all that much and the Low Temp button doesn't do a thing at all.

MrLaundry101 has more dryers in his collection and none got as crispy as the Bosch *can* get.


Post# 1166195 , Reply# 8   12/10/2022 at 14:27 (500 days old) by wholelottared (Turkey)        

Thank you, @Logixx . I'm shocked, it can even get to 70C I thought it would be more gentler on my clothes compared to other dryers since it's a Bosch and it's A+++. Looks like an another reason why I should've chose Electrolux/AEG :( I never had any shrinking so far so hopefully it's ok, but Electrolux/AEG ones probably doesn't reach 70C, that's too high. I'm also surprise “low heat” option does nothing at all, then why is it there and why it makes the time higher, so weird. Also I chose the “+1” drying option from settings, since +0 sometimes lefts things a bit. I was thinking to turn on the “low heat” too, but I won't after your comment.

Post# 1166198 , Reply# 9   12/10/2022 at 14:58 (500 days old) by wholelottared (Turkey)        

Just realized I made some typos in my latest post and I can't edit it, sorry for that.

Post# 1166199 , Reply# 10   12/10/2022 at 15:35 (500 days old) by wholelottared (Turkey)        

@Logixx , I just checked your YouTube channel and saw that Mix got hotter than Cottons on your device. Is this the case most of the time? If yes, I might start using Cottons for everyday clothes since it might be more gentle than the Cottons. Also, on my device sometimes the fan at the bottom right works even on the Mix cycle. Could it be a difference on the programming ?

Post# 1166207 , Reply# 11   12/10/2022 at 16:45 (500 days old) by Maytag85 (Sean A806)        

maytag85's profile picture
I am not sure what’s causing the knocking/thumping sound but my educated guess is it’s either the rollers have flat spots on them or the drum itself is out of round. Have a friend in Michigan who had a Whirlpool 29” top filter dryer from 2009 that made a thumping sound every time the drum went around, that dryer has since been replaced with a older Whirlpool dryer from 1965 that’s been working flawlessly since 2018.

Post# 1166240 , Reply# 12   12/11/2022 at 01:37 (500 days old) by wholelottared (Turkey)        

@Logixx , I promise this is my last question lol. So is it true that Mix gets more hot compared to Cottons? I don't have a thermometer so I can't be sure myself.

Post# 1166249 , Reply# 13   12/11/2022 at 07:27 (500 days old) by Logixx (Germany)        

logixx's profile picture
My go-to cycle is Cottons Cupboard with +1 dryness, since I also find that the standard setting leaves things just a little damp (probably one of many ways to get the A+++ rating).

I can't say for sure that Quick|Mix always runs hotter; the app certainly says it's meant for items not sensitive to higher temps. I ran a load of shirts through that cycle (again on Cupboard +1) and they got up to a temp of 50° (I did check with a forehead thermometer that can also read surface temperatures).

A medium load of heavy cottons on Cotton Extra Dry also reached 50°, while towels using the towels cycle (default settings) reached 65°C. There seems to be not real target temp with these dryers.

The AEG/Electrolux dryers are nice. One thing I'd wish is for them to have a filter in front of the condenser, though.


  Photos...       <              >      Photo 1 of 2         View Full Size
Post# 1166250 , Reply# 14   12/11/2022 at 07:36 (500 days old) by Logixx (Germany)        

logixx's profile picture
My Mix cycle certainly does not use the fan. One time, as I was drying a large load of towels using this cycle, it got to the point where condensation started to leak from the dryer. Obviously because that little exhaust fan wasn't running.

  Photos...       <              >      Photo 1 of 2         View Full Size
Post# 1166251 , Reply# 15   12/11/2022 at 08:06 (500 days old) by Mrlaundry1011 (South Wales, UK)        

I also find my Bosch has no target temp (it’s the serie 6 self cleaning directselect) and the allergy and towels cycle I believe reach over 70. Including timed dry with “low heat”. I also find my fan glitches sometimes and will constantly cycle on and off no matter what cycle or ambient temp, the basic serie 4 HP I used for a few days did the same. They also have a design flaw allowing sand and grit between the drum and front seals, mine scrapes and so did the one in the place I stayed in, I called Bosch out and they said it was my fault and if he didn’t replace the bearing I would have been charged (he didn’t fix the scrapes anyway). I normally use mixed +2 or towels normal or +1 depending on the size of load, however it’s just sat there now as it’s not as efficient as the Beko hybrid next to it (A++ vs A+++) and the Beko reverses and runs cooler, also my T1 runs the coolest and senses the best and keeps much more damp air inside, as well as being A+++

Post# 1166252 , Reply# 16   12/11/2022 at 08:47 (500 days old) by wholelottared (Turkey)        

Thank you everyone for the recent replies! Ugh I started to feel like I made a bad choice with choosing a Bosch dryer, can't believe they don't even know what temperature they are reaching. I could've bought the flagship AEG/Electrolux instead. But it happened at this point haha. Let's hope it serves me for years. If the exchanged dryer comes faulty too (i'm still waiting for it to arive), maybe I can do a refund and go with AEG/Electrolux instead.

About the Miele's, I was actually gonna buy a latest Miele T1 dryer before thinking the Bosch Home Professional, but then I saw on YouTube that recent Miele dryers all have a ticking noise problem because of a sensor, and service was saying them it was normal. That noise sounded to annoying to me so I didn't chose a Miele.


Post# 1166254 , Reply# 17   12/11/2022 at 09:38 (500 days old) by wholelottared (Turkey)        

Also, I just realized that none of us talked about the Easy-Care(Synthetics) program yet haha. One time I tried that program with the default settings with everyday clothes and some things were really damp. Next time, i'll try using Easy-Care(Synthetics) with Cupboard Plus instead of Mix, maybe it might get less hot compared to Mix, hopefully.

Also it sounds like they really did change the programming because on my brand new Home Professional (before they took it for exchange) it was 100% using the fan time to time during the Mix. Weird.

One other weird thing I noticed is that the “Duvet” program (which I acces from the other programs menu) is like a timed warm program which goes for like 3-4 hours. It doesn't even use the sensors. Because when it does it thinks it dried and stops even though the insides didn't try, so they set it up like a timed program I guess.


Post# 1166260 , Reply# 18   12/11/2022 at 10:59 (500 days old) by Mrlaundry1011 (South Wales, UK)        

Bekos duvet prog is kind of similar, if using for sheets and it’s only one set you have to set dryness to less. Mieles bed linen prog I only use extra dry which can dry sheets and duvets with no problem, Bosch? Yeah no reversing so 😂, everyone says how they’ve improved now but only ONE model branded as BOSCH only reverses, no Siemens or neff etc models reverse still. Their washer dryers are just as bad at drying, sensors stop too early so clothes left damp although their gentle dry setting is only 62-64c which is less than some cycles the heat pumps reach even though WD is condensing. I never use any easy care or minimum iron progs as they’re not meant to dry fully, as polyester and other fabrics may shrink if they are or at least that’s what they say. Yeah mine makes the loud ticking noise but I wouldn’t choose any other, apparently only 66db rated models do it. I wouldn’t go for an AEG simply because of no foam filters, they’re needed, plus I had a A++ 7000 series model which I didn’t like at all

Post# 1166262 , Reply# 19   12/11/2022 at 11:15 (500 days old) by wholelottared (Turkey)        

Okay, thanks @Mrlaundry101 . I heard that 64db Miele's do it too, apparently only 62db models don't do it.

So, now I learned that:

Bosch/Siemens = heats too much, doesn't know it's own temperature
Electrolux/AEG: lacks important filters
Miele: makes annoying ticking noise, has smaller drum

Literally why can't we have a perfect dryer? It's like brands aren't even trying hard enough. This is disappointing. I was waiting to buy a dryer for years. Maybe I shouldn't overthink and be happy with my Bosch dryer, I don't know. So far it didn't shrink anything even though apparently it gets hotter, so I guess it would be ok.


Post# 1166265 , Reply# 20   12/11/2022 at 11:51 (500 days old) by Maytag85 (Sean A806)        
Reply #19

maytag85's profile picture
All dryer designs have their Achilles heel, sometimes it has to do with the way it’s programmed or the mechanical layout/design. Condenser dryers don’t need a vent but the condenser needs to be cleaned out from time to time or else the efficiency will be choked down. Heat pump dryers are similar to condenser dryers in the way they work but have a refrigeration system in place of the condenser and if there’s a leak in the refrigeration system, it simply will stop working and will have to have someone who’s licensed to work on a refrigeration system due to the complexity. Vented dryers electric and gas aren’t nearly as complex as condenser and heat pump but need a vent to exhaust the warm moist air to the outside and are a bit more expensive to operate but depends on the area you are in. Vented dryers need to have the venting/ductwork cleaned from time to time along with the inside of the dryer itself for optimum efficiency and reliability. Only things that really fail on vented dryers are thermostats, heating elements, and on gas versions it’s the gas valve coils, igniter, flame sensor.

Post# 1166267 , Reply# 21   12/11/2022 at 11:59 (500 days old) by wholelottared (Turkey)        
Reply to #20

Thanks for your reply, but i'm only interested on HeatPump dryers. The other type of dryers aren't even available on Europe anymore, they feel outdated. The problems you talked about depends on the type of the dryer, while the problems I was talking about depended to brands (they are all HeatPumps).

Post# 1166276 , Reply# 22   12/11/2022 at 12:48 (499 days old) by Logixx (Germany)        

logixx's profile picture
I think Miele has a 120 liter drum, AEG is 118 (I think) and Bosch is 112.

As Lucas pointed out: Easy-Care won't dry. Didn't dry fully on my old Siemens condenser, either. I guess you're better or equally well off just using Cottons without +1.

Also: yeah, I think the Duvet cycle is just a timed 3 hrs. program.

One thing I will say is that I have not had major issues with tangling in the Bosch. My neighbor has a 55cm deep Beko that reverses and it's horrible at tangling things. There are a bunch of reversing models here in Germany, now. All of them middle-of-the-line.

If I had to buy a dryer now, I'd probably go for Beko and then I'd purchase the bottom filter separately. At least that way I didn't spend too much money when it breaks. Miele would just be too expensive, if I really went for the "cool" features I'd like (and probably never use 😉).

The Bosch dryer certainly does get the job done and I haven't had any shrinkage yet... it's just not what I've come to expect having used their washers and dishwashers.


Post# 1166279 , Reply# 23   12/11/2022 at 13:00 (499 days old) by wholelottared (Turkey)        
Reply to #22

Yeah, @Logixx . I also never had any tangling in my Bosch dryer (during my 1 month use before they took it to exchange), I think it's because of that weird cone shaped thing on the back of the drum. Maybe that really helps. I think people exaggerate it when they keep saying it balls things, it depends on what you put inside it too, and how you put it. For example if i'm drying large sheets with normal clothes, I fold the sheets before putting it to dryer, and that helps a lot. It gets slowly unfolded during the drying so it doesn't ball/tangle anything.

Post# 1166283 , Reply# 24   12/11/2022 at 13:32 (499 days old) by wholelottared (Turkey)        

Also, I don't think Miele's have 120 liter drums. I can't find any info about it on the web. When I saw them at the shop they were looking way smaller compared to both my Bosch or any AEG/Electrolux. They might have a deeper drum, but their width weren't big at all. And I think width helps more.

Post# 1166284 , Reply# 25   12/11/2022 at 13:41 (499 days old) by Logixx (Germany)        
Miele = 120 liters

logixx's profile picture
It's in their manuals listed under technical data.

Post# 1166286 , Reply# 26   12/11/2022 at 13:43 (499 days old) by foraloysius (Leeuwarden, Friesland, the Netherlands)        

foraloysius's profile picture
Condenser dryers and heat pump dryers always leave the laundry a bit wet. That's due to the closed system. Most of the time after a few minutes the laundry feels dry. Selecting a higher dryness level may help a bit. I experienced it both with my Miele condenser dryer and the Siemens heat pump dryer I now have.

Tangling bed linens was an issue with my reversing Miele and is also an issue with the Siemens I have now. I guess putting two duvet covers, two pillow covers and two stretch fitted sheets in together doesn't help. I usually dry the load partly in the dryer and then hang the bed linens up to dry. Makes a big difference in regard to wrinkling too.

The temperature inside a heat pump dryer is way lower than in a vented or condenser dryer. Even on the normal temperature setting, shrinking should not be an issue.


Post# 1166287 , Reply# 27   12/11/2022 at 13:44 (499 days old) by wholelottared (Turkey)        
Reply to #25

Damn I'm surprised then, maybe their door is smaller and that's why it made me feel they have a smaller drum. Or as I said maybe they're more depth-focused.

Post# 1166288 , Reply# 28   12/11/2022 at 13:51 (499 days old) by wholelottared (Turkey)        
Reply to #26

Yeah @foraloysius , but if you read the posts in this thread they're saying that Bosch/Siemens dryers reach 60-70C° during normal cycles even though they're Heat Pump dryers and that was what made me worried. A heat pump dryer shouldn't reach these numbers normally.

Also, I saw that you also use one of the never Siemens models, which has an AutoClean system instead of SelfCleaning Condenser (which is like my new Bosch Home Professional). Looks like you were using it since sometime, how is the condenser looking, any signs of clogging or looking dirty? I'm thinking to add the double filter to the door to make even less lints to reach inside the machine.


Post# 1166292 , Reply# 29   12/11/2022 at 14:38 (499 days old) by Moon1234 (Wisconsin)        

We have a Miele T1 that has over 5000 hours on it and has been trouble free. The clothes are never overheated and the dryer does have temp control and adjusts based on the dryness of the laundry. The dryer has a de-superheater. Essentially a small radiator that refrigerant is passed through with a fan to remove the excess the heat. As the clothes get dryer the compressor does not run as often and excess heat is removed from the refrigerant.

The Miele dryer DOES NOT make a loud noise like the one in the video above. It has a small set of carbon brushes that ride on the outside of the drum. This is how the sensor that determines the moisture content of the textiles transfers the electrical signal from inside the drum to the outside computer. When the brushes wear down to a certain point the plastic arm that they are connected to starts hitting a spot weld on the drum as it turns. This causes the brushes to “jump” a little as the spot weld passes under the arm. The “knock” heard is just the brushes being pushed back down by the arms attached spring.

In reality the noise is almost inaudible unless your house is virtually silent. I replaced the arm with brushes ONCE on my last Miele dryer when it had around 9000 hours on it. Not due to the “noise” but because the brushes had become so short the dryer was throwing codes saying it could not detect the moisture content of the textiles. My wife had switched to using timed dry to keep the dryer running. So I replaced the brushes and problem solved.

I think you would be happier with a Miele if laundry perfection vs just being dry is what you are looking for.


Post# 1166297 , Reply# 30   12/11/2022 at 14:53 (499 days old) by foraloysius (Leeuwarden, Friesland, the Netherlands)        

foraloysius's profile picture
The condenser is not removable, so hard to tell. It looks clean as far as I can see. Under the condenser is a thin layer of blue lint, a bit sticky/wet. It is easy to remove. Usually it was clean under there too. I will keep an eye on it.

The Auto Clean system looks more desirable, but that wasn't available yet when I bought my set (2018).


Post# 1166299 , Reply# 31   12/11/2022 at 15:08 (499 days old) by wholelottared (Turkey)        
Reply to #29

@Moon1234 , to be honest, I saw the videos of ticking Miele's and they were sounding even louder than my faulty device.
Here are some example videos, check the comments too:

Video 1:



Video 2:




Video 3:




Video 4:




CLICK HERE TO GO TO wholelottared's LINK


Post# 1166313 , Reply# 32   12/11/2022 at 16:01 (499 days old) by Lavamat_jon (UK)        
Miele dryers

I have the TOL M Touch TCR780, which was a warranty replacement for a TCR860 which had a warped drum. It still makes the ticking noises, although I was assured it wouldn’t as it supposedly has a “Silent” drum (in reality it’s no different to the TCR860 I had before or the one my mum has). I’ve had to learn to live with it as an irritation - although one could argue it’s not something you should expect from a “silent” dryer that retails at the price that it does. It only seems to be a phenomenon with the later models - older Miele dryers (including earlier T1s) will still tick but only faintly and not as audible throughout the house like the newer ones.

The TCR780 is however an improvement from the previous TCR860 in terms of control of the drying temperature. My TCR860 got to 65°+, even on Gentle tumble and would shrink laundry if you weren’t careful, which was never a problem with my previous T8860WP Edition 111 dryer (which had the separate fan and equal drum reversing, why I got rid of that I don’t know 😂). The TCR780 uses the cooling fan a lot more to dissipate and control the heat inside, so is a bit more forgiving. It also has the DryCare 40 cycle which limits the temperature to 40 degrees and basically runs the cooling fan for the whole cycle. I’ve noticed it’s gentler on jeans and elastic - although I have still had a couple of t shirts shrink when using that setting. I tend to use automatic plus for the majority of laundry and it dries evenly - although I do have all the drying levels adjusted to max in the settings menu.

One huge benefit of the Mieles is the filtration and the ease of maintenance - so simple to clean the foam filters on a cold 30 min cycle in the washing machine. When I worked in the industry we once did an experiment where a Miele with foam filter was compared against a self cleaning condenser, and after an extended period of so many uses (can’t remember the exact figure) the BSH condenser was heavily clogged with lint whilst the Miele was spotless from being protected by the additional foam filter.

The bed linen cycle isn’t bad and is certainly an improvement from the first generation of T1s which had a tendency to tangle lighter weight bedding on particular. The only glitch on the newer models with the HygieneDry level is that if you select extra dry on bed linen it will still do the Hygiene stage and over dry laundry, so the highest level you can use is Normal plus. Because of this it will still occasionally leave damp patches. I find whilst not tangling into a ball it will still crease/wrinkle bedding quite badly if you don’t dry the duvet cover separately from the bottom sheet (though again this will happen in any dryer). Because of this I tend to just dry bedding overnight on the clothes horse, which is more efficient still than using even a heat pump dryer.

In fact in the majority of circumstances I prefer to air dry laundry either on the horse overnight or on the line weather permitting. It’s better for the clothes, creasing if any just falls out and is also free, especially important with the price of energy nowadays :-). Although we are lucky that we don’t have allergies and have a fairly well ventilated house for laundry to dry quickly inside. I only really use the dryer for towels or if I have a lot of washing to get through at once, so one could argue I don’t really get the value out of the Miele 😂.

I personally always thought it was little silly how the majority of BSH dryers here even still don’t reverse, luckily the next generation of Series 8/iq700 ranges due out have the bed linen cycle. Another machine to watch are the Haier I-pro machines - granted you aren’t getting the German engineering but they reverse evenly and they have launched a new model which is only 59dB. They are fairly solid too as they are based on the F&P machines, and have a 5 year warranty which is more than the 2 you get nowadays from Miele and Bosch.

I haven’t owned one but I have used a friends AEG 9000 series dryer a few times and it’s certainly a nice machine, very quiet, doesn’t tangle or crease much at all and is the gentlest dryer in terms of heat that I’ve used, very similar to the Edition 111 Miele where clothes are barely warm to the touch. As others have said though it is a shame it doesn’t have as strong filtration, and my partner had reliability problems with an AEG Protex heat pump a few years back.

Before I forget - Miele dryer drums are 120l regardless of capacity. The washer drum volumes are 64l for the SoftSteam drums (all 9kg and older 8kg), and 59.5 for the traditional honeycomb drums (7 and most newer 8kg).

Jon


  View Full Size
Post# 1166319 , Reply# 33   12/11/2022 at 16:12 (499 days old) by Lavamat_jon (UK)        

Some pictures of the filter system on the T1.

One feature I forgot to mention and that I use a lot too is steam smoothing - it’s great for shirts, just hang dry afterwards and has meant my iron has not been used now for years :-)

Jon


  Photos...       <              >      Photo 1 of 5         View Full Size
Post# 1166324 , Reply# 34   12/11/2022 at 16:28 (499 days old) by wholelottared (Turkey)        
Reply to #31 and #32

Thank you for your detailed reply, Jon. @Lavamat_Jon . Since you talked about the Miele's filtering system, my Bosch has an AutoClean, not a SelfCleaning Condenser. AutoClean is the upgraded version of that where you can reach the condenser at the bottom, it has two filters there but it doesn't have any filters on the door. You clean the bottom filter every 6-10 runs and that's it. Because of this I bought the double filter for the door which older models already use, and tuened it into double door filter + condenser filter + autoclean, so it still cleans itself even though no lint even reaches inside haha. It probably reduces the airflow a bit since it doesn't have the door filter normally, but it didn't create any problems yet, and hopefully it won't. I think adding that additional filter really helps getting a longer lifetime from the dryer, this way I'll have to clean the door filter after every use (normally you need to clean it like every 6-10 uses with default AutoClean) but it doesn't matter for me and I prever lifetime over cleaning so I clean the additional door filter after every run.

English isn't my main language so I might be writing a bit complicated but hopefully i'm understood haha. Thank you.


Post# 1166328 , Reply# 35   12/11/2022 at 17:06 (499 days old) by Mrlaundry1011 (South Wales, UK)        
Reply to #28

Yep quickly went back and this was what I measured with similar loads on Mix plus on the Beko (no low temp option on this dryer), Cotton Normal Gentle Tumble on the Miele and Mixed +2 Low heat on the Bosch. I’ve noticed though that the Beko is quite “stupid” per day since if you start a new programme even if the compressor is barely warm the cooling fan is turned on constantly until end, so a lot of heat is just emitted into the room and wasted so the next load will finish much cooler say around 45c, the Miele will not do this and simply turn the fan on when needed and will finish roughly the same time or a few C less. No idea what the Bosch does but I assume it’ll only get hotter🙃. I do find the overall performance of the Miele far superior, since it has higher airflow rates things like pockets/cuffs/waistbands/ hoods of hoodies or pockets and waistbands of joggers (which I dry all inside out) come out perfectly dry, whereas they’ll still be damp from the Beko since the airflow is much less, I think the Bosch is slightly in between. I do also have the Mieles dryness level set to Max for cotton cycles. Mine also made the exact same ticking noise, after arguing with Miele they did replace the whole brush piece but obvs it came straight back, it doesn’t bother me anymore since the performance makes up for it. Both Bosch and Miele are over a year old and their evaporator fins are still spotless, but I’ve had to flush the bekos through with water multiple times through it’s life to try and keep it clean (both mine and my partners families models are starting to smell of damp now from clogging of lint)

  Photos...       <              >      Photo 1 of 3         View Full Size
Post# 1166353 , Reply# 36   12/11/2022 at 20:20 (499 days old) by wholelottared (Turkey)        
Reply to #35

Thank you so much for your detailed answer and test, @Mrlaundry1011 . I really can't believe Bosch makes that much of a difference, 70C° is toooo high for a heat pump. I can't believe they're selling this as a “gentle dryer on your clothes” slogan too. I wish I did this research before buying the dryer instead of after drying it. My only motivation right now is that i'm 100% sure mine uses the fan on Mix sometimes, so maybe mine is programmed better since it left the factory just some weeks ago lol. And it shows a newer software version compared to my friend's on the HomeConnect app. Hopefully that's helping.

About the Beko, I always found them trash. Their sensors are unreliable, they don't have a condenser filter and their door filter is also unreliable, and even though they reverse people say things still ball more than Bosch for some reason. There's a channel on YouTube called GodDay b and he keeps talking about how Beko's are superior at everything but I don't agree.

About the Miele's ticking, I would actually still buy Miele over Bosch even though the ticking because of it's superior performance, but my family also uses the dryer and they get so mad at noises like that the house, respectfully lol. And they're right too, because from what I see that sounds too loud even on YouTube videos, so I didn't went with Miele.


Post# 1166354 , Reply# 37   12/11/2022 at 20:30 (499 days old) by wholelottared (Turkey)        
Adding to #36

I forgot to say, another weird and different thing I noticed on my Bosch is that for example on Mix (haven't checked this on other programs yet), after running for 1 hour let's say, it does an AutoClean stage, and then it stops for a bit. Like it cleans, stops tumbling, waits for like 2 minutes, then starts tumbling again with the condenser being off. Then after like 2-3 minutes the condenser starts again and goes on for an another hour. Maybe this is some kind of a cooling stage they added? I don't know, this also probably leads to different programming/software version.

Post# 1166382 , Reply# 38   12/12/2022 at 03:18 (499 days old) by Mrlaundry1011 (South Wales, UK)        

I think the stopping in the auto clean stage is to stop water from being pulled through making clothes wetter again during the programme. Unlike self cleaning where the water runs off the fins immediately it may not in auto clean because it’ll put a thin layer on the filters which will need to ideally run off before it starts back up as the airflow would pull it through. That’s my guess anyway. Yes the Beko is also terrible at balling, since it reverses for only 3sec on any cycle apparently this has been changed now in new models but still wouldn’t touch one again

Post# 1166449 , Reply# 39   12/13/2022 at 03:36 (498 days old) by wholelottared (Turkey)        
My exchanged device came

Hey y'all, the exchanged device finally arrived and it's not making the same noise. The first one wasn't doing it too but appeared after like 2 weeks. Let's hope this one will be normal and won't develop any noises 🙏🏻

Post# 1166494 , Reply# 40   12/13/2022 at 18:13 (497 days old) by Logixx (Germany)        

logixx's profile picture
Glad your new dryer doesn't make that noise. I tried the Mix cycle on mine, which got one software update probably a year or more ago, and it was a fail.

Post# 1166519 , Reply# 41   12/14/2022 at 01:12 (497 days old) by wholelottared (Turkey)        
Reply to #40

Oh wow @Logixx , I always thought Bosch/Siemens puts the software update to the menu only for the looks of it and never actually updates it's washing machines or dryers, you're the first person that i saw who said you received an update actually haha. I don't think that was a firmware update, maybe a security update. Because my friend who also has the same device as mine has the firmware version 2.0, and mine has 3.0 but he never received an update and it says he's up-to date, even though clearly mine is a newer firmware version. He says he never received an update before.

Btw, by fail, do you mean the front fan not turning on during Mix?

Also lastly, can we please compare “Mix cupboard dry +1” and “Cottons cupboard dry +1”, I would be so happy if someone can do this for me. I want to see which one gets less hot so I can use that instead. When I use Cottons it finishes much faster compared to Mix but I don't know if it's because it heats more or if it's because it doesn't overheat. Would be so happy if someone can try, thank you so much 🙏🏻


Post# 1166522 , Reply# 42   12/14/2022 at 03:04 (497 days old) by Logixx (Germany)        

logixx's profile picture
I received an update notification both via the app and on the dryer's display. I have no idea what the software update was about, as I didn't notice any changes. There is another YouTuber who had two or three cycles added to his dishwasher.

The Home Connect app gets frequent updates - usually making things worse, until errors eventually get sorted out.

I did try the Mix +1 cycle the other day and had to cancel it after about an hour because there was condensation leaking from the dryer - just like last time when I dried a large load using the cycle. I eventually had to use Timed Dry because every other sensor cycle I tried would shut off almost immediately, even though the clothes were still damp. The 40 min. timed cycle with Low Heat ended up reaching 69.8°C.

More on that after I get back from work.


Post# 1166525 , Reply# 43   12/14/2022 at 06:48 (497 days old) by Mrlaundry1011 (South Wales, UK)        

My Siemens washer has received like 2 updates since I’ve had it and my Miele W1 has updated around 3 times since I got it in feb. I think the dryer has recieved 1 update and so has my fisher&paykel. Sadly won’t be able to tell you what cotton reaches as I never use the cycle, I don’t dry bedding in it at all and the rest go on mix or towels. It’s funny how my sisters Siemens washer dryer dries at a lower temp than your heat pump logixx but it does top at 71c at the very start and then cools to 62-64 for the remainder. It makes sense that nothing has shrunk since they were already being dried in the Bosch previously

Post# 1166607 , Reply# 44   12/15/2022 at 06:06 (496 days old) by Logixx (Germany)        

logixx's profile picture
What I wanted to see is how hot the Mix +1 cycle would get with a larger load. I had one fitted sheet, two pillow cases, to duvet covers and some other items in the dryer.

I allowed to cycle to run for about 70 minutes, before I canceled the cycle, as there were droplets of condensation on the wall and around the cycle selector (among other places). Clearly because the fan does not come on to pull air through the interior of the dryer itself. By the time I shut the dryer off, it had reached about 50C.

Both a Cotton Cupboard Dry and Extra Dry cycle were terminated after only a few minutes, despite the clothes clearly still being damp. I have seen this behavior in my previous Siemens before: cancel a cycle midway through and and you'll have to use timed dry to finish the clothes, as the sensors will get confused.

As stated above, after 40 minutes of "Low Heat" timed drying, the thermometer read almost 70C. That's probably the max the heat-pump can put out.


  Photos...       <              >      Photo 1 of 4         View Full Size
Post# 1166613 , Reply# 45   12/15/2022 at 08:08 (496 days old) by wholelottared (Turkey)        
Reply to #44

Thanks for your test Logixx, but I think there's something weird with your device. Are you sure nothing's faulty there? I never had condensation leaking from my device, at worst, it dedects the water level at the bottom got too high and it pumps it up to drawer, or it starts the front fan. For example when I start a duvet program with a huge duvet that got spun in 800rpm, it finishes in like 3-4 hours with zero leaks outside of the device. But yours leak things even with sheets and pillow cases etc? It's weird in my opinion, I never saw moisture on the screen/buttona or on the outside of the device before.

Post# 1166618 , Reply# 46   12/15/2022 at 09:53 (496 days old) by Logixx (Germany)        

logixx's profile picture
It only happens on Quick|Mix. Other cycles will raise the humidity in my bathroom but there's no visible condensation. It all comes down to not running the fan and being rated B for condensation efficiency (87% condensation rate).

Post# 1168883 , Reply# 47   1/9/2023 at 11:23 (471 days old) by Logixx (Germany)        

logixx's profile picture
Did you get the extra filters?

Post# 1168885 , Reply# 48   1/9/2023 at 11:34 (471 days old) by henene4 (Heidenheim a.d. Brenz (Germany))        

It's a lot about how big the room is, what your temperature in the room is etc.

Both my A class, 91% condensation efficiency dryers raised moisture in the bathroom noticeably.

My old bathroom was only 6m² (or 54 sqft) and being close to the coast, it was very humid. After each load I had to open the window.
Living down south again, my bathroom is a little bigger (8m² 72sqft) but you still feel the heat and moisture.


Again, it's just simple maths.
At 90% condensation efficiency, if you have an 8kg load spun at 1400rpm, that load has 4 liters of water in it at the beginning, and 400ml of that will make it into the room regardless.


Post# 1168890 , Reply# 49   1/9/2023 at 12:09 (471 days old) by wholelottared (Turkey)        
Reply to #47 (Logixx)

Hi @Logixx , yeah I bought them, and I'm using them since the replaced device came. So basically it has 3 or 4 filters right now. 2 double filter on the door (the ones that all the other models have, which I bought myself), 1 in front of the condenser, and one at the bottom which normally collects the wet fluff. And plus AutoClean on top of these of course.

A really interesting thing I noticed is, some fluff still somehow collects at the bottom wet fluff collector, and it's always in the middle part of it. This means that, some fluff still escapes the double filter on the door, then also escapes the condenser filter, and then it gets washed away with AutoClean from the condenser to the bottom of wet fluff collector. This shocked me at first, because if it's even escaping the filters I bought, I can't believe how people are normally using these devices without buying additional filters. No wonder why older SelfCleaning Condenser models were getting clogged after some time. What happens on mine is normal though by the way, because I clean the door filters after every use but I clean the other two bottom filters from month to month. So those wet fluffs are accumulated in over a month, and they're really rare. This shows the AutoClean is working great too, because it means all the fluff that still somehow escapes are getting flushed away to the bottom collector.

In conclusion, my condenser is looking ultra clean right now, and I think this (AutoClean + additinal double door filter) is the best solution in the market for fluffs right now, even better than Miele filtering (because in Miele if fluff somehow escapes, it doesn't gets washed away with the condenser). I was normally going to get an Electrolux/AEG dryer, but on those there isn't a condenser filter and even if there was one it wouldn't have been good like mine.

I know this was a very lengthy post, but I hope everything is clear :) Thank you


Post# 1168892 , Reply# 50   1/9/2023 at 12:14 (471 days old) by wholelottared (Turkey)        
To add to my latest reply #47

I forgot to add pics on my post, here are the pics of the current filters basically

  Photos...       <              >      Photo 1 of 2         View Full Size
Post# 1168916 , Reply# 51   1/9/2023 at 15:46 (470 days old) by Logixx (Germany)        

logixx's profile picture
That's good to hear.

Yeah, there will always be lint that makes it past the filters. But your dryer should be very well protected now and you can see inside the condenser and evaporator to check for fluff.

I took the hose from my shower today (since my dryer is next to my bathtub) and blasted water into the condenser as best as I could. Despite me vacuuming the filters all the time, as well as the rubber seals, there was lint pumped into the water tank. I've been using the dryer for two years now, so I was expecting some lint.

Here are some stills from the video I took. The lint pictures (it looks like more lint than it actually is) are from the 1st and 3rd time ran the pump (in service mode). The last picture is how I rinsed the area. However, I had to turn the water way down.


  Photos...       <              >      Photo 1 of 3         View Full Size

Forum Index:       Other Forums:                      



Comes to the Rescue!

The Discuss-o-Mat has stopped, buzzer is sounding!!!
If you would like to reply to this thread please log-in...

Discuss-O-MAT Log-In



New Members
Click Here To Sign Up.



                     


automaticwasher.org home
Discuss-o-Mat Forums
Vintage Brochures, Service and Owners Manuals
Fun Vintage Washer Ephemera
See It Wash!
Video Downloads
Audio Downloads
Picture of the Day
Patent of the Day
Photos of our Collections
The Old Aberdeen Farm
Vintage Service Manuals
Vintage washer/dryer/dishwasher to sell?
Technical/service questions?
Looking for Parts?
Website related questions?
Digital Millennium Copyright Act Policy
Our Privacy Policy