Set Appliance State:
Gas Off
| Isolate Mains Power to appliance as per TOPs P4 |
Drain boiler primary circuit
Remove gas valve
Remove gas valve
Observation:
Remove the four bolts holding pump in position, taking care that any residual water does not damage appliance (use 5mm Allen key).
Check the pump and housing are free from sludge or debris.
Check the impellor is in good condition and is free to turn.
Note:
The design of this pump means limpet
cannot be used to check operation.
When gas valve is refitted ensure all disturbed
joints are checked for gas tightness.
Check the pump and housing are free from sludge or debris.
Check the impellor is in good condition and is free to turn.
Note:
The design of this pump means limpet
cannot be used to check operation.
When gas valve is refitted ensure all disturbed
joints are checked for gas tightness.
Isolate as per TOPs P4
and refit as necessary