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Discuss Glowworm Compact 24c combi in the Plumbing Forum | Plumbing Advice area at PlumbersForums.net

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hey guys, I have an issue with a combi, its brand new (4 months or so) and it will not stay fired up for heating, when I originally went the boiler had no thermostat so I fitted a stat thinking it would sort it, yet it calls for heat, warms up to required flow temp and return warms up and then quickly ramps down to no flame and sits idle with the radiator symbol flashing for it to start up again seemingly at random a few minutes later. The system is really really small, it has 4 radiators which are tiny probably 3kw output max and I did read that the boiler will only modulate to 6kw but the speed at which it starts to ramp down all the rads aren't even at full temp yet. DHW works fine. any ideas? cheers
 
has it been piped up right,, have there gone to 15mm pipe to soon, hence boiler can not get rid of the heat fast enough?
 
Any trapped air? All flow and return valves open, including and filter ones? Is there a wire link left in?
 
pipe to soon, hence boiler can not get rid of the heat fast enough try turning the heat down a little that will help, had this with some one who had done the pipe work, and called us out to see why it was not working right.
 

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