Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
CH Demand
Remove all external control wiring connections and make safe
Link out external controls as indicated by the red wire link in the photo
Link out external controls as indicated by the red wire link in the photo
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Observation:
Cancel purge cycle.
Does the appliance now recognise and respond to the
central heating demand?
Note:
If the appliance still does not recognise demand, leave the link in place until diagnosis is complete.
Does the appliance now recognise and respond to the
central heating demand?
Note:
If the appliance still does not recognise demand, leave the link in place until diagnosis is complete.
Isolate as per TOPs P4
and refit as necessary