As soon as my central heating pump kicks in - the very SECOND it does it - then a very fast clicking noise can be heard in the bottom corner of one of my radiators - much before any HEAT is in the radiator so it isn't expansion. It happens whenever the pump is on and stops when it goes off.
Any ideas? It's driving me nuts.
LS.
Is it a thermostatic valve on that end?
No it's on the opoposite end from the theramostatic valve.
Could it be a bit of debris in the pipe that leads up to the valve, rather than the radiator itself?
Does the naughty radiator have a thermostatic valve
-- tonytrans
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