I don't have any dripping taps - I know that could keep the HW firing and not allow the CH to work.
When I relight the pilot everything seems fine with nothing firing. When I use the HW the burners fire on demand as usual and stop once I've finished. It's just the CH that cuts out within...
There have been a few similar posts on the Puma 80 but nothing really answered my problems.
The Hot Water seems to be fine but when the Central Heating kicks in the burners ignite as usual then I hear a knocking noise within the boiler and the burners cut out. A few seconds later the pilot...
