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Radiator thermostat not working properly
One of our radiators seems to have stopped regulating temperature. The radiator gets fully hot even when the valve is turned right down. What is going on here?
Expert Trade Answers
"Its possible that the pin has got stuck, the head is loose or is damaged internally. Try tightening the ring/nut, if not loose then undo it and remove the head then check the pin, see if it pushes down freely if it does then look inside the head and see if anything has snapped in there. Failing that it'll be new TRV required."
Answered on 13th Jun 2026 - Member since Feb 2019 -
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"Hi there
If the issue is just on one radiator its likely to be the thermostatic radiator valve on the radiator"
If the issue is just on one radiator its likely to be the thermostatic radiator valve on the radiator"
Answered on 13th Jun 2026 - Member since Jun 2026 -
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"Check the trv the pin might be stuck. Try wd40 to free it"
Answered on 13th Jun 2026 - Member since May 2026 -
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"Valve is not there to regulate temperature, it controls the flow of water. Less the water goes inside, less it gets heated"
Answered on 13th Jun 2026 - Member since Nov 2024 -
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