Set Appliance State:
Selector Switch to Hot Water and Heating
| WARNING! Mains voltage is expected during test, follow TOPs P4 live testing procedure |
Observation:
With hot water demand allow burner to ignite.
Remove DHW demand.
Does the pump overrun for approximately 10 seconds and the fan run for approximately 40 seconds?
Remove DHW demand.
Does the pump overrun for approximately 10 seconds and the fan run for approximately 40 seconds?
Isolate as per TOPs P4
and refit as necessary