Recently had a power flush on system, since then 1 radiator does not get hot. The flow pipe is red hot but the return is cold and the radiator only gets very slightly warm. Checked lockshield valve is open, bled all radiators. If I turn all other radiators off this one does get hot, which suggests it is not blocked (shouldnt be after a powerflush!)
I have checked the TRV pin which seems ok
any ideas ?
I have checked the TRV pin which seems ok
any ideas ?