New update. The rads are now getting warm even when the boiler is not firing up in heating mode, or when it's not firing at all. This seems to happen after hot water has been drawn off through taps etc (bath/shower) although not every time. Bizarre!
It's a wireless stat, but the Danfoss RX1 receiver light does not come on, so I don't think it's a rogue stat. But then again I don't know what I'm talking about!
Hi all,
Our Vaillany ecotech 637 boiler fires up and rads come on even though thermo in the house is at lowest setting eg it's not requesting the heating. Its driving me mad as its completely unpredictable.
Could anyone please suggest a way to fix this?
Many thanks
Jim