Isolate Mains Power to appliance as per TOPs P4
Gain access to the rear of the display PCB by removing the main PCB
Gain access to the rear of the display PCB by removing the main PCB
Observation:
Turn the DHW control knob up and down and check that it spins the potentiometer correctly.
Note:
Remove display PCB and check from other side if necessary.
Note:
Remove display PCB and check from other side if necessary.
Isolate as per TOPs P4
and refit as necessary