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Hello, I have a Myson Orion fanfare 30si. When programmer triggers the boiler into life, the fan will spin up but not to fill speed, then stop, with the result being no ignition. To overcome this, simply turning the boiler off and on again/turning dial on boiler down and back up/or turning...

Matthew, This makes more sense to me now as i have just had the trip happen again only after both heating and hot water running, now it has obviously always tripped when boiler running but i have just managed to get it to trip with thermostat switched completely off. All aspects of the boiler...

No signs of leaks anywhere even looked for lime build up from potential leaks that are evaporating fast.. Excuse my stupidity but when you say "motor valve" are you referring to zone valve thingy?

These boiler definitley has a supressor in it... The pump ran for an hour or so, then i switched thermostat back on and boiler was fine... heating both water and radiators.. IT would appear on occasion that the issue was related to both functions being active at same time but then all would...

PCB was cheaper than an unknown engineers call out charge so i opted to take the gamble.... my bad! I do agree, with my limited knowledge that if the boiler not on RCD then the trip would probably never happen.. sadly as you say this unlikely to be alowed these days...

I can safely say it is not the pump as it will run without issue when thermostat turned off, whether this is normal i am unsure. As to whether other "leakage" is contributing.... the trip would happily go when nothing other than fridge is running...... I read on another forum post that the...

:lol: Daft i am i know, although i have not spent as much i could have! Have had access to various spares and already had room stat whilst prgrammer can be returned. Still your opinion is apreciated, gives me some knowledge.. Cheers

Hello, I have a Myson Orion fanfare 30si that randomly trips the entire house out. I am certain that it is the boiler (it will on occasion be instant as boiler attempts to fire up + i have disconnected various other circuits leaving only boiler on) that is causing the issue and have taken...