Set Appliance State:
Gas Off
| Isolate Mains Power to appliance as per TOPs P4 |
Turn Hot Water Tap On
Gain access to PCB (use Insulation Mat as required)
Disconnect both ignition leads from the spark generator and make safe
Disconnect both ignition leads from the spark generator and make safe
| WARNING! Mains voltage is expected during test, follow TOPs P4 live testing procedure |
Observation:
Reset appliance as necessary.
Shortly after the fan starts to run can sparking be heard from the PCB?
Shortly after the fan starts to run can sparking be heard from the PCB?
Isolate as per TOPs P4
and refit as necessary