After mother in law complaining the house was cold, we've tracked it down to a radiator that isn't warming up. Its a 5 foot double radiator, quite old model, downstairs on a combi boiler system.
I've tried bleeding air, but just get water, so air isn't the problem.
Looking at it from left to right, there is a TRV on the left hand side
- this moves freely, currently set at max.
On right hand side there is another valve - is this the lockshield valve? Again, this turns freely, and is currently (after messing around with it to see if that was the problem) is turned to max on. The "pin" inside this moves up and down freely, so is lower when it is "off" and higher when it is "on". When I turn it up and down, a small amount of water leaks from this valve, which I'm interpreting as "bad sign".
The feeding pipe on the right gets warm to the touch when the heating is on, the one on the left does not.
Any DIY options I could try here? Rad is in a room with a wooden floor, so not overly concerned about some leaked fluid, but wouldn't want a whole radiator contents to pour over the floor!
Would the whole system need draining down to take off just one rad? Presumably if one of the valves did need replacing, that would necessitate a complete drain down?
Thanks!
Matt