Set Appliance State:

Isolate Mains Power to appliance as per TOPs P4
Set Multimeter to AC Volts Set meter to measure AC Volts
WARNING! - Mains voltage is expected during test follow
TOPs P4 live testing procedure
Mains Power On

Measurement:

Measure the voltage between terminals 4 and 5
at connector X2 on the PCB,
Mains voltage should be present.
Note:
This test can be carried out while appliance is doing self check.