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some radiators dont heat up
Posted: Fri Nov 21, 2008 9:29 am
by hp123
hi, wondering if someone can help, i have recently bought a house, the central heating system (boiler & radiators and pipework) is six months old, but some of the downstairs radiators dont heat up, tried balancing, but even then they only heat up slightly, they do come on if i tun the upstairs rad off, as soon as i turn them back on we have the same problem. any suggestions?
Posted: Fri Nov 21, 2008 2:49 pm
by htg engineer
Try turning pump speed up, if it's alread on III then the pump may need replacing.
htg
heating problems
Posted: Sat Nov 22, 2008 1:06 pm
by daltonadam2000
what system have you got ie
combination boiler
system boiler (do u have a cylinder)
microbore (pipe diamter 10 mill or less )
Posted: Tue Nov 25, 2008 4:50 pm
by hp123
i have a vaillant ecotec plus 637 boiler with a 310 litre unistor cylinder, the pump is on speed 11 (highest i think).
Posted: Wed Nov 26, 2008 5:33 am
by Steve the gas
Hi,
Try balancing the system!!