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Boiler Depressurizing

Posted by Daniel hilton, on
Hi my boiler is depressurizing, it is doing so usually within about 2-6 hours, there is now Visible flooding or water damage around the property and by this time, it is likely there would be.
Rob Waghorn

Rob Waghorn

Daniel. It sounds like there may be a leak on your heating system. Are the pipes for the down stairs heating circuit in concrete?. If you have refilled the system and one particular rad is not getting warm or requires bleeding then that maybe where the leak is. But that is worse case scenario. I would call the engineer who usually does your boiler service or post the job on ratedpeople and get some advice that way. Hope I've explained the first steps in plain and simple terms, and if I can help anymore then just let me know. Robert. Aspire plumbing and heating.
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Brett Davies

If you have floor boards downstairs and not solid floors, then there could be a leak under the floor boards. It could also be the blow off pipe from the boiler, check the outside wall where the boiler is when your heating is on, to see if there is water coming from the copper blow off pipe. Good luck Brett
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stephen rice

If no visible signs of a leak, I would suggest the expansion vessel. Or pressure relief valve old be passing.
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Jan Hui

Jan Hui

Probable expansion vessel failure-check for drips around the expansion vessel/boiler. The pressure relief valve could be letting by. Or a rather big leak you can't see.
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John Kevin Atree

sounds like a leak to your c/h system, advise would be to find your c/h drain plug drain the system and call a company that carries out c/h repaires, some companies will refill the system using air instead of water to find the leak thus causing no further damage
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Tommy O'Brien

Check amall 15mm pipe which exits boiler theough wall.if signs of dripping you'll need a new prv valve. Not too expensive.
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CHRISTOPHER STAMFORD

It would take a call out to see but ls the we pipe out side ie the back of boiler letting watter out if so could be hope this helps email. Me if you need more help thanks Chris cjs
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richard hall

richard hall

If there is no leaks it could be the expansion vessel usually the pressure will rise very quickly when heating on full rate and drop quickly when off repaired a lot of combi boilers with this problem lately
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