Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Isolate the cold mains supply
(Turn the lever 90° clockwise until it is horizontal)
(Turn the lever 90° clockwise until it is horizontal)
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Observation:
Does the display still show a DHW demand?
