Set Appliance State:
Mains Power Off
CH Demand
Isolate Mains Power to appliance as per TOPs P4
Disconnect one of the Red spaded wires from the Overheat Thermostat and ensure that the disconnected wire is safe and cannot touch any part of the Boiler.
On/Off Switch On.
Disconnect one of the Red spaded wires from the Overheat Thermostat and ensure that the disconnected wire is safe and cannot touch any part of the Boiler.
On/Off Switch On.
Gas On
| WARNING! Mains voltage is expected during test, follow TOPs P4 live testing procedure |
Observation:
Allow the Boiler to go to its Lockout condition.
Reconnect the Overheat Thermostat.
Mains Power ON.
Boiler should operate in the normal way proving that the Control Box has reset.
Reconnect the Overheat Thermostat.
Mains Power ON.
Boiler should operate in the normal way proving that the Control Box has reset.
Isolate as per TOPs P4
and refit as necessary