Set Appliance State:
Mains Power Off
Set Multimeter to AC Volts 
Turn Hot Water Tap On
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Measurement:
Reset appliance as necessary.
Approximately 8 seconds after mains power is turned on, measure the voltage between pin 5 (orange) and pin 4 (violet) at J2 connector on the ignition PCB.
Mains voltage expected.
Approximately 8 seconds after mains power is turned on, measure the voltage between pin 5 (orange) and pin 4 (violet) at J2 connector on the ignition PCB.
Mains voltage expected.
Isolate as per TOPs P4
and refit as necessary