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steevc145 Asked 12 years ago

Why is my radiator not getting hot water or have air in it? [solved]

All except one radiator are working fine. The one that stays cold is in the room with the thermostat, so the system keeps running more than it should.

I tried bleeding it and just water came out. I let it bleed for some time and the pipe which comes down from the ceiling did slowly warm up, but the radiator never got warm the next day the pipe was cold again. The pump was replaced a year or 2 ago and seems to be working fine.

It worked last year. Could there be some sort of blockage? If so, what can I do about it? We are in a hard water area.

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3 Answers Found
Walker6109 Answered 12 years ago

You may have a air lock in your pipes.

Turn of all other radiator, and see if your pump is powerful enough to get water into the cold radiator. If this works, then you need to bleed it again.

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That got it to warm up. I'm hoping that has cleared it. Thanks - steevc 12 years ago
@Steevc in our current place we had to do it 2 or 3 times but it is now all working OK for us. - Walker 12 years ago
It was cool the next day. I'm repeating the process. Didn't seem to be any air in there. - steevc 12 years ago
@Steevc, if the pipe is longer to that radiator then the test you may need to "balance" the system by part closing down the "lock shield" values the radiators that are get hot quickest. - Walker 12 years ago
cigarman335 Answered 12 years ago

Is you expansion tank full? This same thing happened to me a few years back, and I had to have the expansion tank drained because it was "saturated" and wouldn't allow any more water into the tank.

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Paul2450 Answered 1 week ago

Radiator Not Getting Hot? - Plumbing DIY

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