Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Set Multimeter to AC Volts 
Turn Hot Water Tap On
Use Insulation Mat as required
Gain access to PCB
Gain access to PCB
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Measurement:
Allow the fan to run and the ignition sequence to commence.
Measure the AC voltage between pin 39 (blue)
and pin 40 (brown) on connector CN6 during the ignition phase.
Mains voltage should be present for 5 seconds, this will then be present again after approximately 7 seconds. This will be repeated 3 times before lockout occurs, reset as required until test is complete.
Note:
Place the probes in the small holes on the PCB.
Measure the AC voltage between pin 39 (blue)
and pin 40 (brown) on connector CN6 during the ignition phase.
Mains voltage should be present for 5 seconds, this will then be present again after approximately 7 seconds. This will be repeated 3 times before lockout occurs, reset as required until test is complete.
Note:
Place the probes in the small holes on the PCB.
Isolate as per TOPs P4
and refit as necessary