Bosch washer not heating- PCB?

[myfil]

Have been going to a Bosch WFO2466GB/07 washer that stubbornly refuses to heat the water on a wash (all Pgms). The element is fine, on both megger and continuity check. I have changed the probe (NTC) that goes in the heater, still no luck. The wiring looks fine.
So I guess that leaves the PCB (control unit), unless any of you distinguished gents have other wisdom to offer? I have never come across a Bosch washer PCB failing on the heating function, so my question is, has anyone else (before I spend my money on a new PCB. I don’t believe EMW repair these)?

Best wishes for 2012 to all of you.

[Martin]

Re: Bosch washer not heating- PCB?

PCB for sure although often it can just be a case of resoldering the relay pins.

[myfil]

Re: Bosch washer not heating- PCB?

Well I’ve done loads of other heater relays but never on a Bosch – so I’ll let you know what ‘appens!

[electrofix]

Re: Bosch washer not heating- PCB?

had a bosch dishwasher before christmas where the heater relay had failed to check you have to run the machine with the pcb exposed and check for dc voltage on the relay coil

dave

[nomadPaul]

Re: Bosch washer not heating- PCB?

You might find the control module covered in carbon dust . This can disrupt and cause component failure .

[Author]

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