Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Set Multimeter to Resistance 
Remove rear control panel cover to expose main PCB
Remove connector H2 from main PCB
Remove connector H2 from main PCB
Measurement:
Test 1:
Measure resistance across the brown lead and blue lead connection (1 and 4) on the connector marked H2 on the main PCB.
Test 2:
Measure resistance across the live and suitable Earth.
Expected resistance OL or greater than 1MOhm on both tests.
Measure resistance across the brown lead and blue lead connection (1 and 4) on the connector marked H2 on the main PCB.
Test 2:
Measure resistance across the live and suitable Earth.
Expected resistance OL or greater than 1MOhm on both tests.
Isolate as per TOPs P4
and refit as necessary