Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Observation:
Remove and inspect the air box for splits and/or restrictions.
When refitting make sure that the air box is fully seated on the fan venturi and that its retaining screw is in place.
When refitting make sure that the air box is fully seated on the fan venturi and that its retaining screw is in place.
Isolate as per TOPs P4
and refit as necessary