Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Ensure boiler is cool
Ensure auto air vent is open (located pump manifold)
Ensure auto air vent is open (located pump manifold)
Measurement:
Open manual air vent (top of heat exchanger) & remove any air that may be present.
Note.
Check system pressure is still correct.
Note.
Check system pressure is still correct.
