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Hi I hope someone can give me some advice. When i turn the hot tap on only cold water comes out. The boiler fan fires up but there is no ignition. I have changed the diaphragm but it wasnt perished. To get hot water i have to first turn the central heating on and then turn the hot tap on. The...

Hi Central heating works fine no noise from pump but when i turn hot water on it sounds like there is air in the system which i cant seem to bleed. Occasionally the hot water wont heat up at all but this is down to the primary circuit flow switch not closing the microswitch so turning the pump...

Hi Hope someone can help My biasi boiler has suddenly started going on and off every 10 seconds or so when the hot water is turned on and also when just the central heating is on. There are no faults indicated on the flashing led and the pressure is around 1.5 bar. I am an electrician so is...