Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Set Multimeter to Resistance 
Disconnect connector from fan
Measurement:
Test 1:
Measure the resistance between the fan neutral
(2nd spade from left) and each other spade in turn.
Expect greater than 1M Ohm on each test.
Test 2:
Measure the resistance between each spade and a suitable earth point.
Expect greater than 1M Ohm on each test.
Measure the resistance between the fan neutral
(2nd spade from left) and each other spade in turn.
Expect greater than 1M Ohm on each test.
Test 2:
Measure the resistance between each spade and a suitable earth point.
Expect greater than 1M Ohm on each test.
Isolate as per TOPs P4
and refit as necessary