Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Place a wire link between terminals 1 (brown) and 2 (black) of the main terminal strip labelled "Room thermostat / timer"
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Observation:
Does the boiler now fire on a heating demand ?
