Set Appliance State:

Mains Power Off
On/Off Switch OFF
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:

Appliance On/Off control set to On position.
Measure the voltage at the top of fuse F2 and a suitable neutral. Expected voltage should be between 10-26 volts AC.