Bosch SGS45C02GB/11 pulses on and off

[cornwell40]

Weird one this.
Shut the door, switch on and wherever you set the prog selector the machine pulses on, opens the valve for a second and then there’s a relay click, light go out and it starts up again. The programme won’t do a reset as it doesn’t seem to register a programme (the selector can be moved while it’s doing this and the new programme time shows in the display). I’m thinking a definite pcb fault but has anyone else come across this and did just the pcb cure it.

Tony

[electrofix]

Re: Bosch SGS45C02GB/11 pulses on and off

its got the hallmarks of a pcb power supply fault. think all these boards use a switch mode power supply so may be chip failing but i would look inside pcb for blown caps. long shot but you never know till you have looked

Dave

[Alanj]

Re: Bosch SGS45C02GB/11 pulses on and off

Was at one today. I thought it might be the flow meter, but turned out to be fat blocking the hose between metering tank and sump hth.

[Author]

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