One cold Rad in bathroom - Boilermate 2000

[ppuch1]

I have a problem with my radiator in the bathroom. It does not get hot at all. It has been working fine since buying the house from new in 2002 but has not worked for the last few weeks.

The system is a Gledhill (Integrated Thermal Storage) Boilermate 2000
model number ABC2029
The rad valves are MYSON - TRV 2 Way

I have tried turning off all other rads to force the hot water through this one but this has not worked. I have also bled the rad of any air pockets and this has also not cured it.
All the other rads work ok and the hot water is ok.

Any advice on what I could check next or what might be the cause would be greatly appreciated.

 

[ppuch1]

forgot to mention, I cannot detect any heat at the point of the rads where the pipes come in and go out (by the wall) I have small bore pipes.

I first thought it might be a faulty valve but then I was thinking it could possibly be a blockage somewhere.

As I am in the process of selling my house I didn't want to leave this problem for the new owner.

 

[corgiman]

have you got micro bore pipes

if so I suspect a blockage

 

[ppuch1]

Yes ... approx 10mm is that Micro?

does this mean I would need to flush the system?

 

[corgiman]

if its blocked its too late IMO you need to start replacing pipe

but others will say different

 

[ppuch1]

Thanks for the advice Corgiman.

I guess that means a lot of work and a lot of mess. especially as I have just finished all the decor.