Set Appliance State:
Mains Power Off
CH Demand
Selector switch set to CH/DHW position
Boiler CH thermostat set to MAX
Ensure CH controls are calling for heat
Boiler CH thermostat set to MAX
Ensure CH controls are calling for heat
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Observation:
Allow the burner to ignite and run with a CH demand for approx. 30 seconds.
Remove the CH demand.
Does the pump continue to run for approximately 30 seconds?
Remove the CH demand.
Does the pump continue to run for approximately 30 seconds?
Isolate as per TOPs P4
and refit as necessary