Set Appliance State:

Isolate Mains Power to appliance as per TOPs P4
Set Multimeter to DC Volts Set meter to measure DC Volts
Ensure NO demands
Remove connector CN8 from the main PCB and make safe
WARNING! - Mains voltage is expected during test follow
TOPs P4 live testing procedure
Mains Power On

Measurement:

Measure the DC voltage between pin 2 and pin 3 on the
exposed strips on connector CN8 on the PCB.
Expect approximately 5Vdc.