Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Observation:
Inspect the spring to ensure it is correctly attached.
Note:
The image shows a view of the servo valve from the rear for clarity but this test can be carried out with the valve in place using a mirror and a torch.
Note:
The image shows a view of the servo valve from the rear for clarity but this test can be carried out with the valve in place using a mirror and a torch.