Set Appliance State:

Mains Power Off
Ensure appliance is cool
Ensure No demands
WARNING! - Mains voltage is expected during test follow
TOPs P4 live testing procedure
Mains Power On

Observation:

Reset appliance by turning the temperature control knob to "reset", wait 5 seconds, then turn back up above MIN setting.
Does the appliance now complete its self check and go to standby mode or does it return to fault code?
If a different fault code is displayed click here
to go back to fault code list.