Hi, I think I have more than one problem on our Central Heating system. Its a 1930's house, just bought so little cash for expensive repairs.
Downstairs rads have a twin pipe (10mm) going into each rad valve on one side only. Upstairs is 15mm conventional, pipe in one side, out the other.
Upstairs, one rad (bathroom) works great, others are cold with feed pipes also cold. Why? Air blockage in pipe that tees off to bedroom? If so how do I resolve?
Thanks for your time!
Downstairs, one rad is hot, another only gets warm (though pipes are hot), the third is cold whilst pipes are hot. (Valves open) Why? Sludge ?
2006-11-02 02:55:29 · 12 answers · asked by Mike W 1 in Home & Garden ➔ Maintenance & Repairs
1. Have you tried draining the system? - there should be a drainage tap somewhere downstairs on the pipe or at the boiler.
2. Have you checked the pressure of the system, it should be pressurised.
3. Have you 'bled' the radiators (most likely the problem) there is a screw or nut at the top of the radiator (on the side) that can be opened to let the air out.
2006-11-02 02:59:39 · answer #1 · answered by Anonymous · 0⤊ 0⤋
using a bleed key go round all the radiators one by one and and open the little bleed valves and let all the air so the water comes to the top this needs to be done on all radiators, hope this helps. It often needs doing after the summer when system has been off awhile, the upstairs ones will most likley have the most air in.
2006-11-02 03:03:06 · answer #2 · answered by Anonymous · 0⤊ 0⤋
You have a big problem.If you can take radiator off the third one,empty the muck out put it back on & it should heat up.Have you tried turning hot & cold water joined by hose pipe turn hot tap
slightly then turn cold on faster that should blow the air lock.It works for a while then comes back.I turn my bathroom hot water tap on letting it spit out the air.Have no idea why your feed pipes are cold unless they are filled with muck.Pity you were not on British Gas Central Heating Cover bit of advice take it out,thats after you solve the problem has they do not cover for air locks.Our house was built in 35.
2006-11-02 03:08:25 · answer #3 · answered by Ollie 7 · 0⤊ 0⤋
Bleed all the rads and ensure that the boiler is topped up. Still don't work - call a plumber
2006-11-02 02:58:51 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Drain the system and refil adding some 'sludgebuster', run the system for a couple of weeks and redrain. fill up and vent. if the problem still persists, the system may need a power flush.
2006-11-02 02:59:54 · answer #5 · answered by cereal killer 5 · 1⤊ 0⤋
may need flushing?or bleeding,
air in rads rise so i would bleed them from the top(upstairs)first.
had trouble last year with mine you ll be suprised how much crap comes out when flushed.
2006-11-02 03:02:23 · answer #6 · answered by english bob 2 · 0⤊ 0⤋
First thing is to bleed them all (let air out from top until water comes out)
2006-11-02 02:58:26 · answer #7 · answered by le_coupe 4 · 0⤊ 0⤋
You may have a combination of problems, to sort it out quickly pay for a recommended heating plumber.
2006-11-05 09:15:13 · answer #8 · answered by Anonymous · 0⤊ 0⤋
HAVE YOU TRIED BLEEDING THEM.
ALSO WOMTIMES THE VALVES APPEAR OPEN BUT ARE SHUT,IF YOU TAKE THE CAPS OF THE VALVES AND TRY GENTLY WITH A ADJUSTABLE SPANNER TO SEE IF THEY MOVE.HOPE THIS HELPS.
KEL
2006-11-02 03:00:16 · answer #9 · answered by Anonymous · 0⤊ 0⤋
bleed them all first if that dosn`t work drain the system let it fill up and rebleed where necssary
2006-11-02 03:13:34 · answer #10 · answered by tomzy33 4 · 0⤊ 0⤋