have a condensing glowworm boiler when it tries to run there is a lot of noise in the water ways then gose to f10 fault any ideas think it may be expansoin tank
hi thanks for help turned out to be a pump head fault
ceaseing up and unabled disperse heat from heat exchanger hence f10 over heat stat tripping out
skippy, March 2009
f10 indicates a thermister fault but combined with the noise fault its sound more like there is a lack of circulation check that there is water in the system and the pump is working