Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Isolate the cold water supply to the appliance
Drain the hot water circuit
Drain the hot water circuit
Observation:
Remove the DHW cartridge and inspect the flow turbine section.
It should spin easily, this can be confirmed by blowing through the flow turbine.
It should spin easily, this can be confirmed by blowing through the flow turbine.
Isolate as per TOPs P4
and refit as necessary