Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Set Multimeter to Resistance 
Break the inline connector in the turbine lead
Disconnect the 20 way connector from the PCB
Disconnect the 20 way connector from the PCB
Measurement:
Check the harness leads for continuity.
Measure across the exposed ends of the disconnected inline connector to the black, yellow and red leads in turn at positions 10, 11 and 12 respectively of the disconnected connector at the PCB end.
Check the general lead condition.
Reconnect harness after test.
Measure across the exposed ends of the disconnected inline connector to the black, yellow and red leads in turn at positions 10, 11 and 12 respectively of the disconnected connector at the PCB end.
Check the general lead condition.
Reconnect harness after test.
Isolate as per TOPs P4
and refit as necessary