Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
CH Demand
Insert a wire link to bypass the external controls
(as indicated below by the red wire link)
(as indicated below by the red wire link)
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Observation:
Does the boiler now respond to a CH demand?
(Radiator symbol in display)
Note:
If the boiler still does not respond to a CH demand then leave link wire in position.
(Radiator symbol in display)
Note:
If the boiler still does not respond to a CH demand then leave link wire in position.