Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Set Multimeter to Resistance 
Remove the connector from the fan
Remove the 3 pin connector from the PCB
Remove the 6 pin connector from the PCB
Remove the 3 pin connector from the PCB
Remove the 6 pin connector from the PCB
Observation:
Measure the resistance across each of the wires running from the fan connector to the appropriate PCB connector.
Expect continuity / zero resistance on each of the wires.
Also visually inspect the condition of the harness.
Are the harness checks satisfactory?
Expect continuity / zero resistance on each of the wires.
Also visually inspect the condition of the harness.
Are the harness checks satisfactory?
Isolate as per TOPs P4
and refit as necessary