Thread Number: 22979
Trouble with Miele dishwasher...
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Post# 359048   6/23/2009 at 17:21 (5,413 days old) by bellalaundry (St. Catharines, Ontario, Canada)        

bellalaundry's profile picture
I have a G 572 dishwasher. When I got home today I found that the heating element was still on from a load I had started hours before. The timer seems to have advanced to END.

So I tried another short load to see if the timer was indeed advancing. It was...all the way through to END. Again the heating element remained on.

This model has an unusual arrangement where beside the timer there is another dial to choose your programme.

Any ideas what might be wrong. I phone Miele and a new timer is over $300! I can't think what else it could be though.

Help

Guy





Post# 359067 , Reply# 1   6/23/2009 at 19:07 (5,413 days old) by brisnat81 (Brisbane Australia)        

It could be a relay rather than the timer, although the timer should cut power to everything.

Check the wiring on the Element, it should be in series with the thermostats and then follow back up towards the timer, if there is a relay supplying power to the element it could be wired into the mains, rather than through the timer.


Post# 359080 , Reply# 2   6/23/2009 at 20:24 (5,413 days old) by maytagbear (N.E. Ohio)        
For mercy's sake!

If it won't shut off as it should, it could start a fire. Yes, Mieles are generally too well-bred to do such things, but anything can happen.


Please, please do not leave the house with it running. Better yet, turn off the circuit breaker or the fuse when you leave until the situation is figured out.



Lawrence/Maytagbear


Post# 359101 , Reply# 3   6/23/2009 at 21:50 (5,413 days old) by toggleswitch2 ()        

Assuming it's regular 110v then all the above applies.

I have no reason to believe a Miele DW in North America is 220v, but if it were....

A short-circuit and or a ground-fault could cause the thing to get power, as both sides of a 220v circuit here are "hot" (no neutral.)


Post# 359103 , Reply# 4   6/23/2009 at 22:01 (5,413 days old) by bellalaundry (St. Catharines, Ontario, Canada)        
Thanks all...

bellalaundry's profile picture
I thought the same thing myself, about leaving the house with appliances running. Lesson learned!

Guy


Post# 359104 , Reply# 5   6/23/2009 at 22:11 (5,413 days old) by eddy1210 (Burnaby BC Canada)        
Toggles

eddy1210's profile picture
I have a Miele G 520 and it's 220 volt cold intake only.
Guy, is your 572 model 220 as well?


Post# 359170 , Reply# 6   6/24/2009 at 06:28 (5,412 days old) by toggleswitch2 ()        

WOW interesting. I usually defer/refer to our very own "Lady L." (Launderess) for Miele info!

The PROPER way here to switch-off or control 220v in North America is via a double-pole arrangement... a switch or timer should cut off both wires / sides of the circuit. That, I rarely see.

Can I take it then that LATER Mieles ("for export") are 110v?


Post# 359188 , Reply# 7   6/24/2009 at 08:19 (5,412 days old) by bellalaundry (St. Catharines, Ontario, Canada)        
Hi Eddy...

bellalaundry's profile picture
Mine is 110v. Do I see German on your front fashia?

Guy


Post# 359268 , Reply# 8   6/24/2009 at 15:41 (5,412 days old) by eddy1210 (Burnaby BC Canada)        
Yes, later are all 110V

eddy1210's profile picture
This was one of the first Miele dishwashers imported to Canada and yes, that is German on the front! It was made for export as the motor and controls are rated at 220 - 60 hz. The model 520 was imported for 2 years in the early to mid 1980's, mainly for the German speaking Canadians so I understand.

Post# 359738 , Reply# 9   6/26/2009 at 15:48 (5,410 days old) by bellalaundry (St. Catharines, Ontario, Canada)        
Well I got the new timer...

bellalaundry's profile picture
today and installed it. The element still remains on. I sure hope that Miele will take back the timer!

When I look underneath I see only one thermostat. When I remove one of the wires to it, then the element de-energizes. So does that mean it's just the thermostat?

Ideas and thoughts?

Guy


Post# 359751 , Reply# 10   6/26/2009 at 17:29 (5,410 days old) by toggleswitch2 ()        

No, because if you remove a heater wire from the timer that will de-energize it as well. Unless the timer AND the thermostat BOTH say "work" the thing should not get hot. So the question is, why is there power getting to the heater? If the thermostat is a high-limiter, it SHOULD be working when the machine is cold. It is a normally-closed switch.

Start with this:

Is the hot wire (black) hot and the neutral wire (white) getting the right source of power? (polarity not reversed).

Do this by checking where the machine gets power. In a "normal" North American machine, there is a junction box (probably on the lower right of the machine) where the power cable from the wall comes in. Take a neon tester. Put one lead on the black wire and the other to ground. It should light up. Do the same with the white and the ground; it should NOT light up.


If power is by way of the receptacle the same test can be perfomed. The smaller slot (right as one looks at the outlet) should be the black/hot if properly wired.


Post# 359754 , Reply# 11   6/26/2009 at 18:08 (5,410 days old) by bellalaundry (St. Catharines, Ontario, Canada)        
Thanks..

bellalaundry's profile picture
I'll try it!

Guy


Post# 359798 , Reply# 12   6/26/2009 at 21:21 (5,410 days old) by toggleswitch2 ()        

~The smaller slot (right as one looks at the outlet) should be the black/hot if properly wired.

Assming the outlet's hole for the ground prong is down! :-)



Post# 363082 , Reply# 13   7/10/2009 at 21:10 (5,396 days old) by mikepaquette ()        
Very nice Meile dishwasher

Wish I had one like it. I have traveled Europe & they are popular over there. Any chance I could see a pic of the inside & racks. Mike

Post# 363145 , Reply# 14   7/11/2009 at 07:26 (5,395 days old) by bewitched (Italy)        

Hi ! There usually is a relay placed under the machine. It is a black cube not too small. You can access it by removing the panel under the door or more comfortably turning the machine upside down (after removing most of the water). There also is a security thermostat with a circuit breaker that cut power to the heating element. It is placed directly in contact with the tub and kept in place by a fork spring. The relay is likely to be faulty in your machine!


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