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I would appreciate some help with this dishwasher. The machine is not heating the water. The heater checks out fine. I have checked the heater wiring circuit back to the control PCB (Conveniently placed at the back of the machine!). There appear to be two relays on the board which control the heater circuit. When operating, the circuit is live through relay1, through the heater and back to relay2 where it stops. This relay isn’t switching. I changed it, just in case, but to no avail. It appears that this relay isn’t switching. Before suggesting a replacement control board, I thought I’d check the temperature sensor and I couldn’t find one. Does anyone know how this machine senses the water temperature? It must have something surely. Any information would be gratefully received. Graham
thats funny had same fault yesterday and you will not believe this one as i didnt when i first had it
change the tacho on the back of the wash motor
lux dont supply it so fit Beko part no 372205506
they use it to control the motor and it also detects if the motor is running to turn on the heater
Dave
Sorted. Only managed to get back to this one this morning owing to holidays. New tacho coil fitted to pump motor and machine now heating as it should.
I’d never have got this one sorted without your help. Very many thanks Dave.
Graham
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