Now we've started to put our central heating back on, we've noticed that
the radiator in our bathroom never gets warm. All the other radiators
upstairs are warm except this one. I tried bleeding it, but it
contained no air (water came out straight away) and both pipes into the
radiator are cold.
Any idea what could cause this? Air lock?
Rad or pipes blocked with sludge
Control valve and/or lock shield valve on bathroom rad turned off
Lock shield valves on other rads nearer to pump are too far open so they are
hogging the hot water supply
Did the system work fine last winter? If so, has anything been changed? Is
the CH pump upstairs or downstairs? What happens to the bathroom rad when
you turn the control valves off on all the other rads and switch the CH on,
does it get hot?
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