Thread Number: 73420  /  Tag: Modern Dishwashers
The Miele Buzz
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Post# 969560   11/23/2017 at 14:06 (333 days old) by Spacedogb (Lafayette, LA)        

Hi everyone,
My G5105 dishwasher is making a odd buzzing sound. Sometime this buzzing sound will happen and the circulation motor will not turn on. Other times the noise happens while the circulation motor is running. Dishes are still coming out clean just not sure what the noise is. Any thoughts or clues would be great.


Post# 969572 , Reply# 1   11/23/2017 at 15:34 (332 days old) by henene4 (Germany)        

That is the sound of the motor stalling.

Either (as common on this series) the motor/pump bearings are starting to seize up, or maybe its just the motor capacitor on its way out.

Post# 969574 , Reply# 2   11/23/2017 at 15:41 (332 days old) by Spacedogb (Lafayette, LA)        

Is the capacitor a replaceable part or does the whole motor unit need to be replaced?

Post# 969576 , Reply# 3   11/23/2017 at 15:44 (332 days old) by henene4 (Germany)        

Not sure, but I think its pretty easily replaceable IIRC. I think its just behind one of the side panels.

Might be mixing things up though, so no warranty on what I say.

Post# 969583 , Reply# 4   11/23/2017 at 16:59 (332 days old) by richnz (New Zealand)        
Is the machine running in the video?

Also, why does the display not show anything?

Post# 969584 , Reply# 5   11/23/2017 at 17:01 (332 days old) by mielerod69 (Australia)        
Also, why does the display not show anything?

mielerod69's profile picture
It's only for the delay start facility. There is no running time indicator on this model. I know it seems odd.

Post# 969586 , Reply# 6   11/23/2017 at 17:54 (332 days old) by Spacedogb (Lafayette, LA)        

Yes the machine is was running in the pic. Usually you get a buzzing sound a few clicks and either more buzzing or the circulation motor will start. The no display drives me nuts and is only for the delay feature.

Post# 969664 , Reply# 7   11/24/2017 at 13:27 (332 days old) by iej (Ireland)        

Bear in mind these machines occasionally go through filter/ softener regeneration cycles that can make some odd clicks and buzzes.

If youíre not using the softener, you can turn it off. Check the manual about the salt indicator and you can set the machine to use multi action tablets.

Also is your water pressure ok?
Check the inlet filter on the hose to ensure itís not blocked. Low pressure can cause an odd sounding very long fill. The buzz may be the solinoid open against low water pressure.

Post# 969733 , Reply# 8   11/24/2017 at 19:43 (331 days old) by Spacedogb (Lafayette, LA)        

Here is a better video of the dishwasher buzzing and clicking. I noticed that the dishwasher circulation motor runs sometimes while buzzing happens. I do use the softener and itís working fine. I hear it when it goes into the regeneration cycle and it works fine.


This post was last edited 11/25/2017 at 02:04
Post# 969992 , Reply# 9   11/25/2017 at 22:06 (330 days old) by iej (Ireland)        

That sounds very like the capacitor gone.
Simple repair,

Post# 971801 , Reply# 10   12/5/2017 at 20:03 (320 days old) by Spacedogb (Lafayette, LA)        

Hey everyone,
The capacitor came in this evening. I will try and look at videos on how to repair it. Anything in particular that I need to look out for?


Post# 971807 , Reply# 11   12/5/2017 at 20:51 (320 days old) by henene4 (Germany)        

Of course, make sure the appliance is unplugged.

The old capacitor might hold a charge. While not dangerous, a shock from a motor start capacitor can be pretty nasty and hurt a lot.
So, before takeing it out, short out its contacts with something metal with an insulated handle (screwdriver or such).

Not sure if these capacitors have a polarity, but just in case:

1) Take photos of the capacitor while still connected to all leads.

2) Carefully compare the old and new capacitor and check if there are any markings like + and - signs, numbers or letters corresponding to a certain wire.

3) If there are any markings indicating a certain way of hooking the capacitor up, then follow these exactly and before connecting the machine to the power make 100% you correctly wired it in. If that capacitor has a demanded polarity, hooking it up in reverse will most likely blow up the capacitor, and cleaning that mess isn't nice.

The terminals that connect the capacitor to the wires can be quite annoying to undo and might require some force. There might even be small hooks on them that you have to depress to be abled to remove them.
A pait of pliers can help.
Just be carefull not to pull and tug to much on the cables to prevent any damge or wonky connections further within the machine.

Before closing up the machine, run a short test cycle checking that everything works. Just be carefull not to touch the machine in case something accidently shorted to the cabinet.

Post# 971808 , Reply# 12   12/5/2017 at 21:00 (320 days old) by brisnat81 (Brisbane Australia)        

Be aware when you tip it onto its back that water will run out of the overflow in the bottom of the dishwasher. The only way to prevent this is to use a sponge or a towel and fully drain the sump.

Otherwise you'll need a Torx headed driver to get the base plate off to get in there.

Post# 972042 , Reply# 13   12/6/2017 at 21:08 (319 days old) by Spacedogb (Lafayette, LA)        
Water valve solenoid?

So, I changed the motor capacitor this evening and I am still getting the buzzing noise. I took the motor Out when I changed the capacitor I spun the motor and listened with my stethoscope no bearing noise. While I was underneath I noticed the water valve has a solenoid. Could that be causing the buzz? I found a pic here on the forum and circled the item.

  View Full Size

This post was last edited 12/07/2017 at 04:06
Post# 972071 , Reply# 14   12/7/2017 at 02:19 (319 days old) by RichNZ (New Zealand)        
Is that the

mains filter/suppression capacitor.

Turn off the softener and see if you hear a buzz.

Post# 973345 , Reply# 15   12/12/2017 at 23:17 (313 days old) by Spacedogb (Lafayette, LA)        

So after changing both capacitors, I still have the buzz. I have now ordered the water valve located on left side if dishwasher. Iím $250 into the machine and if this doesnít work I will be carrying it over to the trash.

Post# 973398 , Reply# 16   12/13/2017 at 04:51 (313 days old) by henene4 (Germany)        

I mean, why trash such an expensive machine just because it makes a noise? As long as it runs, let it run...

Post# 973494 , Reply# 17   12/13/2017 at 16:36 (312 days old) by Spacedogb (Lafayette, LA)        

Fear of the unknown is why. What if this part causes a fire? The plug is located behind the unit in Jr cabinet, so I cant unplug after each use. Also Iím in a long chain of townhomes. If My unit were to catch fire and set my neighbors home on fire I would feel terrible.

Post# 973915 , Reply# 18   12/16/2017 at 01:23 (310 days old) by Spacedogb (Lafayette, LA)        
I have found the bee!!!

Turns out the buzzing is coming from one of the 2 water valves on the intake. I ordered the valve, now the question is how to get it out of the dishwasher. If anyone has the answer please let me know. Also is the water intake area supposed to be brown like that?

This post was last edited 12/16/2017 at 08:16
Post# 973921 , Reply# 19   12/16/2017 at 02:15 (310 days old) by Spacedogb (Lafayette, LA)        

  Photos...       <              >      Photo 1 of 3         View Full Size
Post# 974920 , Reply# 20   12/21/2017 at 18:20 (304 days old) by Spacedogb (Lafayette, LA)        

Can anyone help me with these questions? Thanks

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