Set Appliance State:

Isolate Mains Power to appliance as per TOPs P4
Set Multimeter to Resistance Set meter to measure resistance
Selector Switch in HOT WATER position
Remove connector plug from X2 on PCB

Measurement:

Measure the resistance across connection 01 (Black wire) and connection 02 (White wire) on the disconnected plug.
Note: Measurement taken at disconnected plug not PCB.
Replace connector plug after test.