1 radiator only working help please

[djmeluk]

all radiators except 1 nearest the boiler are cold they all have thermastatic valves on them there was some air in the one that was working i bled it and is now ok bled the rest of the radiators but found no air in them but they are stone cold all radiators are on the same level

 

[COG]

Check you have power to the pump with all the ch controlls on, room stat timer ect, if power to the pump check its spinning freely (at least 1500 rpm). what type of boiler/ system is it

 

[corgiman]

I would say that the thermostatic valves have stuck themselves in the off position rather than a too small a pump as this would have been a problem from the word go.

take off the heads of the TRV's depending on the type you can usually do this by unscrewing them at the bottom of the head.

once off you should be able to see a pin. push it with a screwdriver, not heavily, if it don't go down then it is stuck

call your plumber to sort it out they should not need replacing just freeing off

 

[COG]

Who said to small a pump ? I said said check it was working

 

[masona]

djmeluk

You say all your radiators have thermostatic valves,there should be one without it unless it is bypass somewhere,to helps to protect the pump.

 

[corgiman]

Who said to small a pump ? I said said check it was working

my apologies mate not following the basic rule RTFQ