Set Appliance State:

Isolate Mains Power to appliance as per TOPs P4
Set Multimeter to AC Volts Set meter to measure AC Volts
Gain access to PCB (use insulation mat as required)
Pull connector X1 back slightly to expose test points
WARNING! - Mains voltage is expected during test follow
TOPs P4 live testing procedure
Mains Power On

Measurement:

Measure the AC volts between pin 1 (brown)
and pin 2 (blue) at connector X1C on the PCB.
Mains voltage should be present.
Note:
Voltage will only be present for 30 seconds after power is turned on, repeat as necessary until test complete