Set Appliance State:

Isolate Mains Power to appliance as per TOPs P4
Set Multimeter to Resistance Set meter to measure resistance
Remove connector X14 from the PCB

Measurement:

Test 1:
Measure the resistance between the live and neutral wires to the pump.
Expect a resistance of 1 MOhm or greater.
Test 2:
Measure the resistance between the live and earth wires to the pump assembly.
Expect a resistance of 1MOhm or greater.
Are the resistances measured as expected?