Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Gain access to PCB (use Insulation Mat as required)
Disconnect flame sense lead from CN900 on the PCB
(leave in a safe position)
Disconnect flame sense lead from CN900 on the PCB
(leave in a safe position)
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Observation:
Reset appliance (press reset button for 2 seconds and release).
Does the boiler now reset?
Note:
1. If after boiler reset the fault code changes from the original to a different fault code, then CLICK HERE.
2. Reset is confirmed by the display returning to show ON displayed when NO demands are present.
Does the boiler now reset?
Note:
1. If after boiler reset the fault code changes from the original to a different fault code, then CLICK HERE.
2. Reset is confirmed by the display returning to show ON displayed when NO demands are present.
Isolate as per TOPs P4
and refit as necessary