Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Disconnect the condensate from the sump, by removing the retaining screw and pulling the trap downwards (push fit connection)
Observation:
Pour water into flue again.
Does water run out of the sump outlet?
Does water run out of the sump outlet?
Isolate as per TOPs P4
and refit as necessary