Upstairs rads not working on an unvented system

[Wright292]

Hi there
i was wondering if someone could advise me on a problem I have with my central heating.
I have a 4 bedroom house which is fairly new and the radiators upstairs do not get very hot at all. We have a Vaillant ecotec plus 624 system boiler downstairs (the one with the pump inside) and the water cylinder upstairs in the airing cupboard. I thought it may be an airlock but that doesn't seem to be the case, I have also had the system flushed which did no good at all.

Would be very grateful if someone out there could offer any advice!

 

[Dotty]

Have your pump checked over.

 

[nadia69]

maybe a zone valve not working correctly

 

[Blake]

When you say fairly new, is it a new build? Has the heating ever worked correctly upstairs? It's a sealed system so it can only really be a valve/pump/ or incorrect piping that is preventing it flowing upstairs imo.

 

[Turkish_Plumber]

hımmm...a detailed investigation is necessary:cyclist:

 

[mountainman]

Try turning a few rads off downstairs and see if that improves matters.

As has been already said, has the system ever worked properly?

 

[Centralheatking]

Yup, start with MM's advice and report back, centralheatking

 

[Doodlebug]

Have you checked the pressure? Have you had any work done recently where a valve may have been turned off?

 

[DirksPlumbing]

Hi there
i was wondering if someone could advise me on a problem I have with my central heating.
I have a 4 bedroom house which is fairly new and the radiators upstairs do not get very hot at all.

Maybe a stupid question but have you had your system balanced?
If so someone over-motivated might simply had closed the lock shields too far.