Set Appliance State:
On/Off Switch OFF
Isolate Mains Power to appliance as per TOPs P4
Turn off DHW stop cock
Ensure appliance is drained and discharged
Turn off DHW stop cock
Ensure appliance is drained and discharged
Observation:
Remove and inspect the DHW flow regulator located in the water flow turbine.
Refit regulator, filter and water flow turbine after test.
Refit regulator, filter and water flow turbine after test.
Isolate as per TOPs P4
and refit as necessary