Fix Fault Boiler Thermostat

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We have 1247 questions about fixing 'boiler thermostat'

Potterton Suprima 100. Central Heating comes on above set thermostat temp?

House is very warm. House thermostat says ambient is 23 deg C, with the 'on' temparature for central heating to come on is 19 deg C. The boiler shouldn`t be pumping heat to radiators - but it is! Hou ... more


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Potterton Profile 50e - keeps resetting?

My profile 50e resets itself at least once/twice a day which means I can't rely on it to heat water first thing in the morning or turn the heating on when I return from work. The motorised valve is a ... more


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How can I fix my Baxi Solo 3 Pfl System 50 boiler?

My boiler ignites, when the thermostat calls for heat, stays alight for a few minutes and then goes out and then re ignites. This continues all the time without getting up to proper temperature. The ... more


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Potterton Netaheat 10-16 Mk 1 boiler fan problem ?

I have a Potterton Netaheat 10-16 Mk 1 boiler. It has recently started having problems firing up. These are intermittent. The boiler thermostat is on and usually I then hear the fan starting up and ... more


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How can I fix my Potterton Electronic Boiler ?

I have recently moved home and my boiler is not working correctly. The Central Heating comes on when the Hot Water is switched on. Even if the Central Heating switch is on OFF it still comes on and ... more


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Potterton Puma 80 combi boiler hi press problems?

When Central heating turned on from cold my system has an initial hi press surge (1-3.5bar), after header temp reaches thermostat cut out temp, the press falls back to 2bar over a few hours. The syst ... more


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potterton netaheat 1622 electronic?

can anyone tell me where i can get an overheat thermostat kit for this boiler


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Noisy old boiler?

My son has an old wall hung boiler. It is fully pumped and it works fine. Trouble is that when the boiler lights, it is ok, but when it is shutting off, having made the thermostat etc, it emits ... more


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no c/h no hot water?

pilot light is on .c/h pump runs when u turn up thermostat but the boiler does not fire up for c/h or hot water . MAKE pottern MODEL puma


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How can I stop my boiler from tripping the RCD ?

Came home after successfully booking a stress free fortnight in Fuengirola to find the electricity was off in my house.Narrowed it down to my Ravenheat rsf 820/20 combi boiler.(It's on the sockets rin ... more


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Hot water only when radiators are being heated?

I have a combi boiler which only now heats water when the room thermostat is under the set temperature and is therefore providing heat to the radiators. It used to be ok, does anyone have any ideas as ... more


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boiler trouble?

pilot light on and will fire up when thermostat is turned up but burner goes out after 10 -60 secs. hot water and c h not wkin.


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NO central heating from combi boiler?

Hi hope someone can help, my combination boiler Ideal stelrad/Sprint will not stay fired up when selecting central heating. When I call for hot water it fires up and I get roasting hot water, the pre ... more


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how can i fix my ariston eurocombi boiler a/23mffi?

the ignition reset button/safety thermostat reset (overheating) light on the boiler is continually coming on which shuts off the burner. when pressed the burner comes back on for about 5 seconds then ... more


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My potterton netaheat 10-16 boiler stopped working!?

When the room thermostat gets below temp, the boiler kicks in (pilot light and fan) and makes all the right noises but it does not seem to light up to heat the water. On a few occasions it does for ju ... more


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Potterton Puma 80e pilot light slow to stay on?

Dear All, recently I've found that after running a bath the pilot light goes out and when trying to relight it I have to hold the gas control knob in for longer and longer times-if i release it too ... more


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Problem with netaheat profile 30e?

Hello, I have the above combi boiler and my problem is this. On the Honeywell control panel I can select the switch to heat the water, the boiler sparks and flame is seen. If I try it with the cent ... more


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boiler trouble?

Hi, my gas boiler (myson marathon) has stopped heating water... the pilot light is on. the appearance of the pilot does not change when i turn the boiler on electrical power is getting into ... more


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How can I fix Glow-worm Micron 60FF?

I have this for more than 3 years and it has been working fine with CH and HW, until a couple of months ago. Every now and then, about 3 to 4 times a week this was what happened: 1. The timer is ... more


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How do i stop my boiler being noisy?

I have Baxi solo 50RS boiler which I have had trouble with for some time. My heating system was new when the house was built nearly 8 years ago, since then I have had 2 pumps 3 new three way valves a ... more


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