Bosch Classixx Dishwasher not heating up

[pez46]

Hi I have a 6 year old Bosch Classixx Dishwasher (not sure of the model number) that stopped working on Friday. I switched it on at 23:00 hrs and it was still working at 06:00 hrs the following morning. It had not heated up and the pots were still wet and cold & the dishwasher tablet had not disolved. It has a basic on/off button on the front with 4 wash cycles Normal (65) Eco (50) Quick (35) & pre-rinse. Any help will be appreciated.

[Penguin45]

Re: Bosch Classixx Dishwasher not heating up

Hundreds of “Bosch no heat” posts in the forum. Start HERE.

Model number is etched into the top edge of the door inner panel.

Penguin45.

[pez46]

Re: Bosch Classixx Dishwasher not heating up

Thanks for the quick reply. The number on the door looks like SGS43CO2GB/43. I would welcome any additional help.

[pez46]

Re: Bosch Classixx Dishwasher not heating up

Does anyone no if there is a reset button on the model i have? If so any idea where it is?

[Penguin45]

Re: Bosch Classixx Dishwasher not heating up

No, there isn’t.

Have you read, understood and acted upon the link you were directed to?

Penguin45.

[CassIoW]

Re: Bosch Classixx Dishwasher not heating up

Hi My Bosch SGS43C02GB/35 will not heat up. The control board was replaces about 6 months ago under recall & I have looked at it and found no evidence (burning) of dry joints. I have also tested the element and it is approx. 25 ohms. also the larger (red Wires on the temperature sensor on top of the element show a short circuit but the smaller cables appear to be open circuit. There is what looks like a micro switch on the end of the element between the element connections and is in series with the element. This is open circuit. Is this some form of flow switch or has it failed? the machine is not currently connected to services so I cant test it under power. I will also take of the other side panel and check out the water level system at the weekend Any help would be most appreciated.

[CassIoW]

Re: Bosch Classixx Dishwasher not heating up

Ok have moved on a bit since last post. I have taken the left side panel off and checked that none of the waterways were blocked. but found what I think is the water level diaphragm switch orifice was blocked I stripped the diaphragm unit and unblocked it with a pin, it now works if I blow gently into the valve the micro switch operates. I ran the machine and it still didn’t heat up and Im not sure the thing is filling with enough water. I removed the water solenoid and tested it, All OK.
I checked out the power to the element and there is power to the micro switch on the end of the heater unit but not to the element. I have removed the micro switch and that operates ok. It looks like the plunger that operates that micro switch is not operating it. Does anyone know what that micro switch does? I have taken some photos of the diaphragm switch in pieces that I could post later for members info .

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