Set Appliance State:
Gas Off
| Isolate Mains Power to appliance as per TOPs P4 |
CH Demand
Remove spark electrode lead from rear of spark electrode, and place end of disconnected lead a short distance away from metal case, as shown in the image
CH Switch in constant position
Boiler Switch in ON position
CH Switch in constant position
Boiler Switch in ON position
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Observation:
Switch Boiler switch ON; a short while after the fan starts does sparking occur?
Isolate as per TOPs P4
and refit as necessary