I HAVE A BAXI COMBI BOILER INSTALLED, MY RADIATORS HAVE THEIR OWN THERMOSTATS. WHEN I PUT THE HEATING ON THEY COME ON FOR A LITTLE WHILE THEN GO COLD EVEN THOUGH THEY ARE ALL SET TO NUMBER FIVE, IM A LONE PARENT AND ANY HELP WOULD BE APPRECIATED.[/i][/b]
RADIATORS GOING COLD
- Thread starter kaz66
- Start date
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get rid of the caps
and boiler model would be a start
along with has anything been altered
and boiler model would be a start
along with has anything been altered
Is your room thermostat, assuming you have one, turned up?
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Is the hot water working ok?
have the trvs always been full open
Hot water is working fine, the radiators come on again if I switch the boiler off and back on again, then maybe an hour later they are going cold again. Sorry not sure what TRVs are, I'm a mum on her own and dont know anything about this subject, sorry.
trv = thermostatic radiator valves
they have a habit of sticking
ie the head might say 5
but the valve is stuck at 2
they have a habit of sticking
ie the head might say 5
but the valve is stuck at 2
The heads contain something akin to a set of bellows I think. Basically as the room gets warmer, the 'bellows' start to expand, pushing down on a pin in the valve, shutting off the flow of water into the radiator.
However, these pins can stick shut. As Kev said, the head might be set on 5, the 'bellows' could be open, but as the pin is stuck down the water cannot circulate through the radiator.
Carefully remove the head, and you should see the pin. Try pushing it in with your finger. If it seems solid, then tap it gently with a small hammer, this should free it off. When the rad is working, refit the head.
If this doesnt work, come back and we'll try and see what else it could be!
However, these pins can stick shut. As Kev said, the head might be set on 5, the 'bellows' could be open, but as the pin is stuck down the water cannot circulate through the radiator.
Carefully remove the head, and you should see the pin. Try pushing it in with your finger. If it seems solid, then tap it gently with a small hammer, this should free it off. When the rad is working, refit the head.
If this doesnt work, come back and we'll try and see what else it could be!
try the rest then
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