Bleeding radiators?!

[Jackson74]

How do you do this, as never done before? I have one radiator that will not heat up all of a sudden? Thanks in advance!!

[don1]

You get a radiator key from any plumbers or plumbers merchant and loosen the little square thing in the top of your rad and let the air out. When water spurts out you have done it.

[Playbill]

You should be able to see a small valve at the top of one end of the radiator. You will need the key to open this and let the air out. Make sure you place a bowl underneath first, as once all the air is out, the water will follow; then tighten the valve.

[Playbill]

Great minds think alike, don1!

[pilotlight]

Jackson, If, following the good advice offered previously, ( done when the pump is off, by the way ), you find that there is only water , and no air, a air - lock may not be the problem.It is unusual for air to cause a radiator not to heat up " all of a sudden "as you say, it is more of a gradual fault, i.e. only a small part of the top of the radiator not hot at first, then the cold spot gets bigger gradually.

Hope the bleeding of the radiator does work, but if not, come back on.

[Mudman]

One other bit of advice that I can offer (from experience) is.. Be patient when 'bleeding' radiators. The screw in the middle of the bleed valve only needs to be open a small amount to be able to release the air. Try wiggling the screw a little (sometimes they can trap sediment/sludge). Don't remove it completely. It can take longer that you would think to screw it back in when rusty water is spraying down your wall.

Another tip.. Turn off all the other radiators. If the problem radiator heats when the heater and pump are running.. Then it can't be 'airlocked'. But listen for bubbles running through it.

[rojash]

Easiest thing is to get rid of the bleeding radiators and get a bleeding calor gas heater

[rogerthomas]

This is just a hunch, but I bet you're a girly aren't you?

[silverdaler]

thats a bit sexist rogerthomas.

i'm a girly and i bleed my own rads, do all my own decorating, and (some) DIY.

We're not all helpless.

Cheeky !