Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Remove the DC Pump Connector
NO Demand
NO Demand
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Observation:
Allow the boiler to carry out its self-check.
Does the pump now run during the self-check period?
Note:
The pump can be very quiet so it may be necessary to confirm by gently pressing on the centre screw until it makes contact with the impeller (if it is running a grinding noise will be heard).
Does the pump now run during the self-check period?
Note:
The pump can be very quiet so it may be necessary to confirm by gently pressing on the centre screw until it makes contact with the impeller (if it is running a grinding noise will be heard).
Isolate as per TOPs P4
and refit as necessary