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Radiator not working

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By *vd1987 OP   Man
over a year ago

Manchester

Look for advice. One radiator won't heat up, all others in the house do.

I have bled the system and taken the tvr off. The pin seems to be stuck up and I can't push it back in to put the cap back on.

Any advice before I call a plumber please?

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By *mTheMrJMan
over a year ago

Barry

Have you tried hitting it with a hammer?

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By *4bimMan
over a year ago

Farnborough Hampshire

Only thing I've done with mine is remove the cap and use a pipe wrench to turn the stuck adjuster

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By *oodmessMan
over a year ago

yumsville

There is this that makes plumbers look unnecessary but they probably aren't

https://www.youtube.com/watch?v=U2CY4rHr7nA

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By (user no longer on site)
over a year ago

It can be a matter of tapping the pin when you have taken the cap off. I have tried using pliers to pull the pin up.

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By *irtydevil666Man
over a year ago

bristol

Wd40 and mole grips

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By *ornucopiaMan
over a year ago

Bexley

Don't worry about it. The heating season is drawing to an end!

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By *ong-leggedblondWoman
over a year ago

Next Door

I had a similar issue a few yrs ago, i used wd 40, pliers and a hammer solved the issue.

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By *vd1987 OP   Man
over a year ago

Manchester

I managed to get the pin moving and the cap back on but still no hot water coming through.

Looks like it might have to be a plumber job!

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By *dward_TeagueMan
over a year ago

wolverhampton

Where in the house is the cold rad in relation to your boiler? Is it the rad that is closest or furtherest away from your boiler?

If it’s the most far away then you may need a power flush of the whole system including pipes to remove all of the detritus and general crap from the pipes and the last rad in the chain is generally the one that is affected most.

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By *itvclaireTV/TS
over a year ago

Birmingham

It's not that difficult to change them. Just done several of mine as some were over 45 years old. Now they were jammed. One radiator had been in the off position since it was installed. Have the system a flush at the same time too.

XX

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By *vd1987 OP   Man
over a year ago

Manchester


"Where in the house is the cold rad in relation to your boiler? Is it the rad that is closest or furtherest away from your boiler?

If it’s the most far away then you may need a power flush of the whole system including pipes to remove all of the detritus and general crap from the pipes and the last rad in the chain is generally the one that is affected most."

It is the one farthest away from the boiler (bit even that isn't very far lol).

It's also the one that generally has the most air in it when I have bled it.

Either way think unfortunately gonna have to call a plumber

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By *ad NannaWoman
over a year ago

East London

Might be a sludge problem.

My whole system needs flushing out.

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By *dward_TeagueMan
over a year ago

wolverhampton


"Where in the house is the cold rad in relation to your boiler? Is it the rad that is closest or furtherest away from your boiler?

If it’s the most far away then you may need a power flush of the whole system including pipes to remove all of the detritus and general crap from the pipes and the last rad in the chain is generally the one that is affected most.

It is the one farthest away from the boiler (bit even that isn't very far lol).

It's also the one that generally has the most air in it when I have bled it.

Either way think unfortunately gonna have to call a plumber"

When you consider the network of pipes feeding water around the heating system then the last rad is generally the one to suffer. A full system flush should sortit, Draining the system doesn’t usually remove all the crap whereas a flush does.

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By *AZMIKCouple
over a year ago

Newton le Willows

Close all the valves on the other rads

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By *urt 500Man
over a year ago

Swansea

The system needs balancing. Hard to tell if a sludge issue,will depend on type of installation

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By *alking HeadMan
over a year ago

Bolton

What's the pressure in the system when cold? If it's too low, that indicates there is still air in there. Check your boilers manual for recommended settings. You might just need to top up the system with fresh, put the heating on, then bleed the air again.

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By *ig1gaz1Man
over a year ago

bradford

close all other rads off by shutting the other side to the trvs

except for the 2 farthest rads closest to each other.

open and close the none trv valve on the issue rad do the same with the trv leave both open

this will force the water to the last 2 rads on the system.

now turn the system on

now close the none trv valve on the last rad so it forces all the water down the issue rad.

if its air locked it will force it out but not always.

run it until rad is red hot at return pipe

if the rad becomes hot

then rebalance the system out

on the non trv valve side open and close the valve a few times as you rebalance the system as it clears a few debris out of them.

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By *vd1987 OP   Man
over a year ago

Manchester

Thanks all for the advice. I'm going away for a few weeks with work so will have to try it when I get back

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By (user no longer on site)
over a year ago

Try turning it off and on again

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By *vd1987 OP   Man
over a year ago

Manchester

I wished it was that simple lol

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By *ig1gaz1Man
over a year ago

bradford

it is that simple the only things that can cause a major issue.

is badly piped heating system

hot water tank robbing central heating system

and air locks

alot of these issues is caused by owners not maintaining there systems

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By *vd1987 OP   Man
over a year ago

Manchester


"it is that simple the only things that can cause a major issue.

is badly piped heating system

hot water tank robbing central heating system

and air locks

alot of these issues is caused by owners not maintaining there systems "

I meant the turning it on and off again bit lol. I get my system serviced every year

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By *elshyXOMan
over a year ago

Newcastle

The pin being fully raised is normal when removing a TRV as the valve controls the pin. If all rads are getting hot & youve bled the offending radiator the system may need balanced.

To balance it, its as simple as using the TRV’s on the other rada to turn them off then blasting the heating. Hopefully you’ll get some gurgling & rumbling within 10-15 minutes, then the offending rad should start to heat up. Onces thats the case reintroduce the other rads turning them on one by one

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By *rHotNottsMan
over a year ago

Dubai & Nottingham


"Where in the house is the cold rad in relation to your boiler? Is it the rad that is closest or furtherest away from your boiler?

If it’s the most far away then you may need a power flush of the whole system including pipes to remove all of the detritus and general crap from the pipes and the last rad in the chain is generally the one that is affected most.

It is the one farthest away from the boiler (bit even that isn't very far lol).

It's also the one that generally has the most air in it when I have bled it.

Either way think unfortunately gonna have to call a plumber

When you consider the network of pipes feeding water around the heating system then the last rad is generally the one to suffer. A full system flush should sortit, Draining the system doesn’t usually remove all the crap whereas a flush does."

Can you do this yourself easily with a hosepipe ? I have a couple with this problem and the quote for a full flush is more than swapping out the radiator

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By *elvet RopeMan
over a year ago

by the big field

With the other rads hot, feel the pipes that feed your suspect radiator, if they’re hot to touch the fault is probably with the valves, if not, the problem is elsewhere (could have a chunk of nasty at a t-piece, stopping the flow though- unless you have small bore pipe feeding it…then you’re fookered)

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By *ig1gaz1Man
over a year ago

bradford


"When you consider the network of pipes feeding water around the heating system then the last rad is generally the one to suffer. A full system flush should sortit, Draining the system doesn’t usually remove all the crap whereas a flush does.

Can you do this yourself easily with a hosepipe ? I have a couple with this problem and the quote for a full flush is more than swapping out the radiator "

if you think your system can be dully flushed while plumbed in its a con job.

it cant

it means each rad must be taken of the wall to flush as much of the sludge out of the rad itself.

it dosnt always do it and it does mean a new radiator is needed.

you can power flush the center of a rad with a side power flush tool to fire down the the rad but you will be flipping that rad over often and also taking off the valves to get access.

that will take an hour to do a normal power flush lance wont do it

https://www.youtube.com/watch?v=Ru-nNFqBzqk

https://www.youtube.com/watch?v=5_1PdbtMMC0

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By *ig1gaz1Man
over a year ago

bradford


"it is that simple the only things that can cause a major issue.

is badly piped heating system

hot water tank robbing central heating system

and air locks

alot of these issues is caused by owners not maintaining there systems

I meant the turning it on and off again bit lol. I get my system serviced every year"

actualy no you dont and neither does any one else.

you dont adjust those valves twice a year to stop them sticking or blocking up.

you may get it serviced but you neglect those valves.

port valves are another failure on the system that arnt replaced eithe, only time you realise you have a problem is when its not working properly or the system is being taken of heat.

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