Radiators will not heat up dispite red hot pipes

[David O'Bryan]

Hi.
I hope someone can help me I'm at my wits end....the rads I'm working on will not heat up no matter how much balancing I try!
The feed pipe to the rads are very hot but I cannot get the hot water into the rads?
Any ideas would be most welcome.
Thanks

 

[townfanjon]

The stupid question , are both valves open

 

[Chalked]

Looks like poor circulation.
What size are the pipes connected to the rad?
Also, is it open vented or sealed system?

 

[David O'Bryan]

Hi
There 15mm and it's a sealed system.

 

[David O'Bryan]

Condensing combi...

 

[David O'Bryan]

Ive tried shutting all rads upstairs off completely but downstairs stays cool, opened back up and upstairs now hot but down cold.......ahhhh

 

[Best]

Are there any zone valves? Always possible one is seized nearly closed.
Or any other isolating valves?
Or your circulating pump could be only partly functioning and if that is happening, the hardest to pump to rads with perform worst, such as on drops to downstairs rads

 

[Best]

Try turning every radiator off except one of the downstairs rads to see if it works

 

[David O'Bryan]

Ok thanks will give it a try tomorrow....no zones, upstairs does heat first and as we speak the upstairs rads are red hot but downstairs still cold...

 

[Riley]

I’d say pump. Heat rises n all

 

[Sharp Point]

One pipe system and badly sludged up??

 

[David O'Bryan]

Not smudged up....

 

[Harvest Fields]

What boiler is it? Is the pump inside the boiler or in the airing cupboard?

 

[David O'Bryan]

Integral pump inside boiler

 

[David O'Bryan]

Ariston eco combi

 

[Harvest Fields]

And you said the pipes into the rads downstairs are hot?

 

[Riley]

Has anything changed? New rads, new valves???

 

[David O'Bryan]

Pipes downstairs hot...no new bits?

 

[Harvest Fields]

Sounds like a pump or a blockage somewhere.

 

[David O'Bryan]

Is there a way to check the pump?

 

[Riley]

Depends on your boiler. What ya got?

 

[David O'Bryan]

Ariston eco combi

 

[Riley]

Then no as you can’t take cover off boiler. You will need a gas engineer mate

 

[David O'Bryan]

I can get to pump it's quite an easy boiler to work on, cleaned out heater matrix recently it came out in 10 mins easily...

 

[Chalked]

I can get to pump it's quite an easy boiler to work on, cleaned out heater matrix recently it came out in 10 mins easily...

You said no work had been done late ( four posts above)

 

[David O'Bryan]

Question was any new bits? I just flushed out exchanger...i had the issue before that was done....

 

[Harvest Fields]

I can get to pump it's quite an easy boiler to work on, cleaned out heater matrix recently it came out in 10 mins easily...

As you are

Question was any new bits? I just flushed out exchanger...i had the issue before that was done..

and for that reason I am out

 

[David O'Bryan]

Thanks

 

[Riley]

Because you shouldn’t be in your boiler legally unless you’re gas safe. That’s why I said you need an engineer

 

[Darren Jackson]

You can just lower the control panel on these boilers without taking the cover off. so he can access the pump easily and legally.

 

[Harvest Fields]

You can just lower the control panel on these boilers without taking the cover off. so he can access the pump easily and legally.

I’m still out mate. Who is he going to call if it goes wrong? Us, and he will expect us to fix it.

 

[David O'Bryan]

Calm down man....just asking for some help with my rad issue...

 

[Riley]

It’s not really a case of calm down mate as far as I’m concerned he’s right members of the public should not be touching gas appliances without proper training irrespective of whether its water or gas related parts

 

[David O'Bryan]

No no I get that...
That said I still have no heat in my downstairs rads and could do with some helpful advice !

 

[Riley]

You’ve been given some buddy get an engineer to check your pump. If you remove the affected radiators do you have water at both valves?