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)
WARNING! - Mains voltage is expected during test follow
TOPs P4 live testing procedure
Mains Power On

Measurement:

Measure for A/C voltage across pins 2 & 3 of connector CN2.
Expect mains voltage.
Note:
Connector CN2 may differ in appearance but test points remain the same.