radiator cold. one pipe hot one cold.

[jontwhale]

hi all,
i have a non pressurised system. boiler downstairs, tank and pump upstairs.

i have no TSV's in the house - all are pegler standard valves.

One rad in the kitchen is cold the rest are very toastie indeed! the pipe going into it is hot but the pipe coming out is cold.

i have bled the rad and turned the rest of the rads off except this one but no change..... what would the next step be?

thanks in advance

Jon

 

[kevplumb]

check the lock shield valve is open

 

[slapper]

Turn off all the other rads in your house and let the dicky one have full power,could be air or sludge in rad,dont forget to turn others back on after.

 

[jontwhale]

hi all,
turned the rest of the rads off except this one but no change.
thanks in advance

Jon

already done the full power thing. thanks anyway.

yes the lockshield is open too

 

[jackthom]

Must be time for the bucket test.

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Is the radiator fed with 15mm pipework or something a bit more restrictive?