coal fire heating problem

[pmdaid]

Hi all,

I have a solid fuel heating system which around 2 weeks ago stoped putting hot water to my radiators also water to taps only warm.have bled the radiators (all ok) checked all piping for leaks (all ok) checked the pump pumping and working ok (yes!!) Checked ball cran in top tank (ok!!!) Drained the system refilled and bled and guess what ......still no heat!!!!!! All i can give you is top pipe into coil is roasting bottom pipe comming out just warm.could it be the coil? Your help would be much appreciated.cheers

 

[pmdaid]

Also had somone check thermos x2 and both ok

 

[Agile]

Sounds like its blocked with sludge. Its suprising if the pump is still working.

You will probably need to do some chemical desludging which can be a bit risky on what is probably an old system.

Tony

 

[pmdaid]

hi Tony,

the boiler is only say 6 years old so quite new system .will try that though anything worth a go cheers also after draining system i'm now getting hot water to the taps

 

[Nige F]

hi Tony,

the boiler is only say 6 years old so quite new system .will try that though anything worth a go cheers also after draining system i'm now getting hot water to the taps

I would say , firstly an airlock . Try filling system from a drain point with mains water hose - watch the header tank as you`ll fill this to overflowing . Secondly , and I witnessed this just yesterday , while refurbing some cast iron column rads for my house , There was a lump of crud lying in the bottom of a rad - the size of a broad bean and rock hard I poked it out along with the small ( expected ) amount of loose rust - it would have been enough to disrupt the flow in the rad - probably why rad was taken out and sold to me cheap