Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Disconnect electrical connector from the flow switch
Refit M6 at the PCB if you have not already done so
Refit M6 at the PCB if you have not already done so
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Observation:
Does the boiler still attempt to run with no demand?
Isolate as per TOPs P4
and refit as necessary