Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Set Multimeter to Resistance 
Remove low voltage electrical connector to fan
Measurement:
Measure the resistance (continuity) across the fan low voltage harness leads.
Connections are;
X16 connector pins 1, 2, 3, 4 & 5 to corresponding connection on the fan connector.
Expected resistance is continuity (zero resistance).
Note.
Ensure a good connection is made or misdiagnosis will occur, connector & pin numbers are printed on the PCB.
Connections are;
X16 connector pins 1, 2, 3, 4 & 5 to corresponding connection on the fan connector.
Expected resistance is continuity (zero resistance).
Note.
Ensure a good connection is made or misdiagnosis will occur, connector & pin numbers are printed on the PCB.
Isolate as per TOPs P4
and refit as necessary