INSPECTION FLUEWAYS

Set Appliance State:

Isolate Mains Power to appliance as per TOPs P4

Remove inner panel

Observation:

Check heat exchanger flue ways for blockages.
Remove the sump connection and make sure hole is not restricted (it may be necessary to remove the fan to do this).

bx combi 133 he plus upper section inner combustion cover removed.gif

Note:
Before reassembly check the integrity of all disturbed gaskets and seals and replace as necessary.