help my boiler is firing up for about 1 minute then cuts off the pilot light i have changed the thermocouple to no avail looks like flames lifting off burner. also the boiler works ok when the case is off, when case back on the problem occurs i have checked flue clearance inside and out and heat exchanger fins are clear

craig, July 2010

Glow Worm Space Saver 50 BF Mk II, would you know where to buy gas valve and solenoid assembly.

Terry, October 2012

can u pls advise the piot light always goes out when i let go of the release button i have replaced the thermo couple and gas valve but still have the same problem

gazstric, December 2010

thanks for the reply i couldnt see any problems with flue which i thought it had. the part of the flue where the combustion air comes in is almost enclosed apart from at the bottom. I had a good poke around and couldnt find anything. so i put the casing back on and for some reason the boiler worked ok after i had not done anything different to the last 4 times taking boiler apart strange. what seal could it be that maybe corrupt?

craig, July 2010

I would suggest you haven't checked the flue thoroughly, if the boiler works okay with the case off (not recommended), then the issue is definitely the flue.
Either not enough air supply from the outer flue, or corruption between inner and outer flue (maybe seal). This would cause the flames to baffle and as you describe, put the boiler out.

Definitely a flue issue.

Carefree, July 2010