Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Set Multimeter to DC Volts 
Gain access to PCB (use Insulation Mat as required)
Remove the connector from the fan assembly and make safe
Remove the connector from the fan assembly and make safe
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Measurement:
This test can be carried out during the purge cycle.
Measure the DC voltages between pin 4 (brown), pin 5 (orange) and pin 16 (pink) on connector X3 to a suitable earth point.
The voltages should conform approximately to the table below:
Measure the DC voltages between pin 4 (brown), pin 5 (orange) and pin 16 (pink) on connector X3 to a suitable earth point.
The voltages should conform approximately to the table below:
| Connector X3 | DC voltage | Pin 4 (brown) | 16.6 |
| Pin 5 (orange) | 20.4 |
| Pin 16 (pink) | 22.0 |
Isolate as per TOPs P4
and refit as necessary