We had a new back boiler fitted along with Thermostats on all the radiators last year. All was well until this week, when although my Thermostat was set to off, my Bedroom radiator was boiling hot. I double checked it and left it for a bit(never know who been playing with it out of the two kids !!!!), and it was still hot. All the other radiators work fine and get hot and cold as they should do, and the hot water is fine too. the system is a bit noisy so it has probably got a bit of air in it, but don't know if the two would be related. So in the mean time so i can sleep without sweating i shut the valve at the other end of the radiator. This done it soon cooled down, but it still seems a little bit warmer than it ought to be. my initial instinct would be that its just a faulty Thermostatic valve and i should just rip it out and replace it. Just one problem! How?! Looking at it it looks like its just a case of undoing two nut and off it comes, but what about the contents of the radiator?
Baxi Bermuda one hot radiator
- Thread starter moleyman
- Start date
Is the head of the valve srewed down correctly
unscrew the collar at the bottom of the stat head
what make of thermo valve. Some unscrew and some twist off.
HOneywell (wild guess) 
make sure it is fitted properly and is closing the valve
while u got it of , check that small plunger on top centre of valve pushes down and returns up.
Why is the rad getting hot when the heating is turned off 
Perhaps its been installed as a by-pass
perhaps the diverter valve is stuck and your getting creep
Perhaps the return has been connected in the wrong place and you're getting reverse circulation in the hot water mode
is it a fully pumped or gravity hot water
Perhaps its been installed as a by-pass
perhaps the diverter valve is stuck and your getting creep
Perhaps the return has been connected in the wrong place and you're getting reverse circulation in the hot water mode
is it a fully pumped or gravity hot water
wondered how long it would take you 
well it aint the top bit. I exchanged the control unit, with the one from the bathroom, and the bathroom is still nice and cool but the bedroom is turning into a sauna again! Is there any adjustment to be made on the valve or are they just factory set?
what is the valve number should be vt??????
kevplumb said:wondered how long it would take you
Don't know why I bother, no-one answer the questions anyway.
Is the heating on or off, if off leave the bloody thermostatic rad valve alone and play with the parts that wrong
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