Set Appliance State:

Isolate Mains Power to appliance as per TOPs P4
Set Multimeter to Resistance Set meter to measure resistance
Hinge down the PCB housing
Remove 8 way connector from PCB

Measurement:

Measure resistance across the two resistors fitted to the low voltage harness.
Resistance across the clear resistor
should be approximately 36kOhms.
Resistance across the blue resistor
should be approximately 18kOhms.