Set Appliance State:

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

Measurement:

Test 1:
Measure the resistance between the brown and blue wires at the disconnected connector.
Expect approximately 11.4 kOhms or greater.
Test 2:
Measure the resistance between the blue and earth.
Expect a resistance of 1MOhm or greater.
(O.L is acceptable because this is greater than 1MOhm)
Test 3:
Measure the resistance between brown and earth.
Expect a resistance of 1MOhm or greater.
(O.L is acceptable because this is greater than 1MOhm)