Central Heating System

[jzeng05]

Advise required please, been in the loft today to fetch ont the suit cases
Could hear water running in to the header tank for the central heating system, lifted lid and it was hot water returning

Is this okay ?

 

[simond]

No, its pumping over.

Will cause huge corrosion problems in due course if not resolved.

Can be caused by too high pump speed, partial blockage in cold feed/open vent connection, or poor system design.

Either way you must get it fixed. Often not easy for a Diyer to resolve, btw.

 

[Armo74]

Did you have the heating on at the time? Where was the water running from? More than likely water due to expansion.

 

[jzeng05]

Armo74

Yes heating was on at the time

water coming from the 22mm pipe running in to header tank

 

[Armo74]

I would go with simond then.

 

[jzeng05]

Simond

Thanks, we had a new boiler, pump and motorised valve recently
pump is on setting 2, tank t/sat is set at 60

I will turn the pump down to setting 1 and change the sat setting to 55

But I recall them turning up the pump to get the water to the last radiator

cheers

 

[jzeng05]

Armo74

Okay thanks for your help

 

[HERTS P&D]

The cylinder temp should be set to 60.

Andy

 

[Armo74]

As said above do not touch the cylinder stat that is fine. More likely to be due to a blockage.Was system flushed due to new boiler installation

 

[jzeng05]

Thanks Armo74

No it wasnt flushed

 

[jzeng05]

andy

thanks for the advice

JT

 

[mysteryman]

If it's pumping over it's wrong. Get it seen to in your own interest.

 

[jzeng05]

mysteryman

Will do

many thanks

JT