Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Set Multimeter to AC Volts 
Gain access to PCB (use Insulation Mat as required)
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Measurement:
Test 1: Within 45 seconds of turning the power on:
Measure the voltage between the red and black wires at connector X5 on the PCB.
Mains voltage should be present.
Test 2: Approx 45 seconds after turning the power on:
Measure the voltage between the white and black wires at connector X5 on the PCB.
Mains voltage should be present.
Voltage should continue to switch every 45 seconds until self check is complete, repeat test as necessary.
Measure the voltage between the red and black wires at connector X5 on the PCB.
Mains voltage should be present.
Test 2: Approx 45 seconds after turning the power on:
Measure the voltage between the white and black wires at connector X5 on the PCB.
Mains voltage should be present.
Voltage should continue to switch every 45 seconds until self check is complete, repeat test as necessary.
Isolate as per TOPs P4
and refit as necessary