Trouble with Miele dishwasher...

[bellalaundry]

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

 

[brisnat81]

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.

 

[maytagbear]

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

 

[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.)

 

[bellalaundry]

Thanks all...

I thought the same thing myself, about leaving the house with appliances running. Lesson learned!

Guy

 

[eddy1210]

Toggles

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

 

[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?

 

[bellalaundry]

Hi Eddy...

Mine is 110v. Do I see German on your front fashia?

Guy

 

[eddy1210]

Yes, later are all 110V

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.

 

[bellalaundry]

Well I got the new timer...

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

 

[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.

 

[bellalaundry]

Thanks..

I'll try it!

Guy

 

[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!

 

[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

 

[bewitched]

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!