Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Observation:
Inspect the positive pressure tubes to confirm they are free from damage or restrictions and that they are correctly connected.
The tubes run from the positive pressure point to the tee piece, from the tee piece to the gas valve and from the tee piece to the differential burner pressure test points.
The tubes run from the positive pressure point to the tee piece, from the tee piece to the gas valve and from the tee piece to the differential burner pressure test points.
