Radiator problem

magicoi · 19 Oct 2009 at 19:38

Now its a bit colder at night the heating has come on.
Problem is that the rads downstais are fine but the ones upstairs arent coming on so its cold

i've tried bleeding the radiators and there doesnt appear to be any air locks in them as its only water coming out and no air. Pump is on full but nothing to do with that either.

Running a back boiler system.

Any plumbers with any smart ideas here that i could try??

Im going to now turn the heating off for 10 mins and then try and re-bleed all rads in the house - read a post via a google search that you cant bleed while rads are on? I would have thought a system under pressure would be better to force circulation??

cheers

EDIT: Oh dear, completely wrong section!! Mods, please move to GD when you get a chance!!

Defcon5 · 19 Oct 2009 at 19:59

Surely your car only has the one radiator?

magicoi · 19 Oct 2009 at 20:02

Dogbreath · 19 Oct 2009 at 21:35

Anyone been fiddling with the balancing valves?

BigglesPiP · 19 Oct 2009 at 21:47

You drive a bus?

markweatherill · 19 Oct 2009 at 21:49

I always wondered what happened to 'The Double Deckers'.

St0rmer66 · 19 Oct 2009 at 21:53

Turn off the downstairs radiators and it will force it upstairs. That will cleear any airlocks. If when you turn the downstairs radiators on again the upstairs go cold.. then you need to balance the system. This is done by closing off the other end of the radiator you don't normally touch (so requires basic tools). Turn down the radiators downstairs which get hottest quickest so that it forces it round the other ones. Sometimes the downstairs ones only need to be open a quarter of a turn while the upstairs ones are fully open (about 8 full turns usually!).

magicoi · 19 Oct 2009 at 22:02

ok ill give that a try St0rmer, cheers

Didnt seem to work

Ear against cold radiator i can hear stuff moving but hether thats just from downstairs im not sure. Theres no air locks as water comes out straight away when opening the valves.

Think ill have to resort to a plumber to look at things. Theres a pipe that runs under the floor in the bedroom at just the right spot when i swing my feet out on a cold morning that i miss right now!!

beermonster · 19 Oct 2009 at 23:21

Drop an egg in the system.

St0rmer66 · 19 Oct 2009 at 23:52

magicoi said:
ok ill give that a try St0rmer, cheers

Didnt seem to work Ear against cold radiator i can hear stuff moving but hether thats just from downstairs im not sure. Theres no air locks as water comes out straight away when opening the valves.

Think ill have to resort to a plumber to look at things. Theres a pipe that runs under the floor in the bedroom at just the right spot when i swing my feet out on a cold morning that i miss right now!!

A plumber will just do exactly what I just told you

.

Try turning off all but one of the upstairs radiators. See what happens when you turn them back on one by one.