hi could you help me get to whats wrong with my boiler please when i turn the hot water tap on the hot water gets hot for a while sometimes longer than other times then sometimes it will stay hot for mybe a minute then a red flashing light comes on and the water goes cold the boiler is a biasi 24s can you help plaese thanks paul hope to hear from you soon
Would appreciate your help. Just moved in to my place at the powernap 155 is a real headache! Clocks been replaced but the pressure keeps dropping to zero very quickly, I know this can’t be right. Been searching around the net and it could be a number of things. Something about the expansion valve?
Do you know where this might be situated and what it looks like?