Advice with Cold Radiator

bazza1603

Hi,

My system has plastic pipes and is microbore. We had the system flushed 2 years ago and had a great result. all Radiators were boiling hot. Engineer said it was only temporary fix.

Boiler is downstairs

Problem is - 1 upstairs radiator has become lukewarm. At the intake at the bottom of the radiator is boiling. However outlet pip is freezing. All other radiators are boiling hot still

I thought rubbish in system would block downstairs radiators first as last time, all downstairs were cold and upstairs was boiling.

Does it sound like my issues have come back, or could it be a simple problem??

Going to call BG later on under heating cover, but wanted some advise

Thanks

Barry

macman

Have you tried bleeding the rad? Cold at top, warm at base normally indicates air in the rad, and air rises to the highest rad on the system.

Paulos77

macman wrote: »

Have you tried bleeding the rad? Cold at top, warm at base normally indicates air in the rad, and air rises to the highest rad on the system.

Thats what i would say you should try too. I had to bleed my bathroom one not so long ago, was only half warm. Red hot now

bazza1603

Hi,

Forgot to mention that I bled the full system and found a few radiators - Not this one - Full of air.

Radiator does warm up after a while, But only stays warm, never hot like the others

regards

Barry

macman

Check it again for air with the CH on and warmed up, takes 2 mins.

bazza1603

Hi,

Have tried it several times, especially that Radiator..

Keep thinking every time its getting warmer....

Regards

Barry

macman

If you have to continually bleed the rads then air is getting into the system.

bazza1603

Hi

After 1st bleed, no more air has shown

Can not understand why bottom of the radiator is boiling hot, about 4-5 inches in from the intake then it's only luke warm.

Thanks for your time

Barry

macman

I'd remove that rad and flush it then.

Mankysteve

It cant be an odl system with plastic pipes there fairly recent I'd thought. It oversly not a boiler issue. I would agree with above Remove rad replace it with a new one, Maby fit one of those Auto bleeding valve. B&Q sell them but i suspect you can get them cheaper else where. (That remind I need phone BG to fix the rad in bed room as the Bleed key thingy is rounded off)

bazza1603

Hi,

The system is 12 years old.

Will BG flush that radiator underl the Hoemcare 200? or could it be the return pipe bloked or value thats broken?

Regards

Barry