Radiators all cold

[LisaHart2009]

Hi, can anyone advise me on where to start with this.

My Rads are all cold, yet the boiler is firing up and I have hot water(albeit I need to leave it on all day for it to be hot enough. The pipes in and out of the 3 port valve are hot, although the one to the rads takes longer to get too hot to touch. The pump is working as well.

Thanks

Lisa

 

[Agile]

May be no water in the system. See FAQ for things to look at.

Just how are you so sure the pump is "working well" ?

Tony

 

[doitall]

Have you got TRV's on the radiators, if so turn them right up and see what happens.

Could be because she has hot water Tony

Certainly sounds like sludge or air.

 

[kevplumb]

check the small tank in the loft has water in and ballvalve works

 

[davebgas]

Do you have TRV's? If so have you had them turned off over the summer? Pins might be stuck in

 

[LisaHart2009]

I've checked that the TRV's aren't turned off. The rads are about 2 years old so not sure about sludge.

The water pressure seems to be low aswell

 

[doitall]

Ok thats a start Lisa.

What boiler is it and do you know how to top the pressure up if it's a sealed system.

 

[LisaHart2009]

No I'm at work, I'll need to check when i get home and no I dont know how to top it up

Lisa

 

[davebgas]

My Rads are all cold, yet the boiler is firing up and I have hot water(albeit I need to leave it on all day for it to be hot enough. The pipes in and out of the 3 port valve are hot, although the one to the rads takes longer to get too hot to touch. The pump is working as well.

Unlikely its a sealed system with this set up, do you have tanks in the loft Lisa?

 

[doitall]

We'll wait for you to get home in that case.

 

[doitall]

My Rads are all cold, yet the boiler is firing up and I have hot water(albeit I need to leave it on all day for it to be hot enough. The pipes in and out of the 3 port valve are hot, although the one to the rads takes longer to get too hot to touch. The pump is working as well.

Unlikely its a sealed system with this set up, do you have tanks in the loft Lisa?

An sealed system on an Y plan sounds pretty normal to me

 

[davebgas]

Oh I know I agree but 90 out of a 100 its open....

 

[LisaHart2009]

yes there are two

 

[kevplumb]

check the small tank in the loft has water in and ballvalve works

 

[namsag]

13 minutes to get home and climb in loft and post back , its supergirl