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cheers for that, how do you no if its vented? the boiler works fine when room stat calling for heat on any setting, hi or low which i've ended up on about a quarter turn . The problem is once the room stat stops calling for heat, instead of switching to standby i get the red flashing led and...

gas flow was set according to flow rate on instructions on the side of heater.work done by 2 different gas engineers

pilot flame keeps getting blown out when on high thermostat setting,have changed low limit stat,gas valve, new water pump drained and flushed system. boiler operates on low stat setting for about 2 hours in one go before going out again-overheating? pilot wont re-light for about 10-15minutes...

I have a brand new boiler which seems fine until the next time it ignites, ie in the morning when all i get is a flashing red led light. In the manual it says boiler problem, but nothing else. Im wondering if the boiler should drop back into standby with an amber led? i've tried reducing the...

changed thermacouple +tried a new gas valve,looks like low or high limit stat not shutting off gas and trying to keep boiling up.possible answers on a postcard please?

wall boiler pilot light went out,had boiler seviced-everything fine and had thermacouple replaced,everything fine for 1 week,then nothing.pilot light wont relight at all now HELP PLEASE.