I have a Baxi combi boiler (installed just over a year ago) and it has ran fine (opperating around 1.5-2bar) up until the 1 year warranty ran out (sods law!). Now when the system is off the pressure goes right down to 0bar. When I turn the heating on it goes up to 3bar. I have checked for leaks and bends/blocks in the flexi pipes (which there aren't any) and also bled the system. When I turn the heating on (from 0bar pressure) the boiler makes cluncking sounds. Anyone have any ideas before I fork out a tonne for the plumbers? Thanks
2007-01-22 07:53:35 · 5 answers · asked by Random Name 2 in Home & Garden ➔ Maintenance & Repairs
Could be a faulty pressure gauge. Have you tried topping up the system will the fill loop (the flexi pipe with a tap on it) to see if the system pressure increases. If the pressure gauge increases & then slowly drops then this would normally indicate a leak in the system. If the gauge stays steady then all is well. If the system pressure exceeds 3-4 bar then normally it will self vent using a safety valve incorperated within the boiler. Have you shut off a number of radiators which could increase system pressure when the boiler is firing? Failing that......bite the bullet & pay for a pro to sort it out. Hope you get it sorted.
2007-01-22 08:30:16 · answer #1 · answered by steve s 1 · 0⤊ 0⤋
plumber here , if your system is a pressure system ( a little red cylinder ) then your pressure should alway's sit at 1 bar , if all rad's are heating and vented then there are no blockage's , i can not think of a reason for your problem . before you get a plumber i know they can be dear over in england , get in touch with the heat advice council i think it's free and see what they say.
as above the safety valve will blow at 3/4 bar to stop your system getting damaged
2007-01-22 08:32:13 · answer #2 · answered by Anonymous · 0⤊ 0⤋
The previous owners to this property had a similar problem. When the plumber came he found that the valve on the filling loop was open when it should have been closed. Don't know if this helps
2007-01-22 10:33:08 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Pressure vessel fault ?
Big red thing
Call in boiler maintenance folk.
2007-01-23 05:28:16 · answer #4 · answered by Fred 1 · 0⤊ 0⤋
Have you checked your expansion tank to make sure its not waterlogged?
2007-01-22 09:41:01 · answer #5 · answered by darchangel_3 5 · 0⤊ 0⤋