Set Appliance State:
Gas Off
Turn Hot Water Tap On
Isolate Mains Power to appliance as per TOPs P4
Mode Selector Switch to DHW position
Rremove boiler flow microswitch cover (depress single rear plastic clip) to view.
Mode Selector Switch to DHW position
Rremove boiler flow microswitch cover (depress single rear plastic clip) to view.
| WARNING! Mains voltage is expected during test, follow TOPs P4 live testing procedure |
Observation:
Does the Boiler Flow Switch spindle operate the Boiler Flow Microswitch?
Replace microswitch cover after test.
Note:
This test is for the lower microswitch.
Replace microswitch cover after test.
Note:
This test is for the lower microswitch.
Isolate as per TOPs P4
and refit as necessary