Set Appliance State:
Set Multimeter to Resistance 
Isolate Mains Power to appliance as per TOPs P4
Remove rear control panel cover to expose main PCB.
Remove rear control panel cover to expose main PCB.
Measurement:
Remove pump connector marked H1 on the main PCB
Test 1:
Measure resistance across the live (brown lead) and neutral (blue lead) connection on the connector marked H1 on the main PCB.
Expected Resistance Approx 160 Ohms
Test 2:
Measure resistance across the live (brown lead) and
a suitable Earth
Expected resistance O.L or greater than 1MOhm
Test 1:
Measure resistance across the live (brown lead) and neutral (blue lead) connection on the connector marked H1 on the main PCB.
Expected Resistance Approx 160 Ohms
Test 2:
Measure resistance across the live (brown lead) and
a suitable Earth
Expected resistance O.L or greater than 1MOhm
Isolate as per TOPs P4
and refit as necessary