Set Appliance State:

Isolate Mains Power to appliance as per TOPs P4
Set Multimeter to Resistance Set meter to measure resistance
Remove the 7 pin connector from the PCB

Measurement:

Test 1:
Measure the resistance between pin 5 (brown) and pin 6 (blue) on the 7 pin connector.
Expect a resistance of 7.9kOhms or greater.
Test 2:
Measure the resistance between pin 3 (black) and pin 6 (blue) on the 7 pin connector.
Expect a resistance of 7.9kOhms or greater.
Are the resistances measured as expected?