Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
CH Demand
Disconnect plug for thermistor at the PCB
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Observation:
Does the fan now run?
Note:
Ensure boiler is not up to temperature and there is circulation around the system (i.e pump is running).
Note:
Ensure boiler is not up to temperature and there is circulation around the system (i.e pump is running).
Isolate as per TOPs P4
and refit as necessary