Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Ensure the pump is not running as this may alter the pressure shown.
Observation:
Any air trapped in the boiler will cause the Pump Proving switch spindle not to rise and fall as required, check for and remove any air from the water circuit.
The system water pressure must also be correct for the boiler to function properly, ensure that with the boiler cold the system pressure gauge on the front panel shows at least 1.5bar.
The system water pressure must also be correct for the boiler to function properly, ensure that with the boiler cold the system pressure gauge on the front panel shows at least 1.5bar.
Isolate as per TOPs P4
and refit as necessary