I've got a problem with my radiators becoming hot when I've switched the progarmmable thermostat in the hall way off. Several upstairs radiators are very hot particularly the bathroom and onsuite. Other upstairs are also warm. Some down stairs radiators are tepid. The hot water cylinder is about a year old. I've bleed all the radiators three times to get rid of any airlocks. What could cause the raidiators to become warm whilst the progammable thermostate is switched off and how can I cure the problem?.
You motorised valve for the rads may be faulty, not shutting properly. The valves are normally near the pump. Let the system get cold, put on only the hot water then feel the pipes around the valves, if water is flowing through your heating valve when it's off, it needs repaired/replaced.
DIY how to tutorial projects and guides - Did you know we have a DIY Projects section? Well, if no, then we certainly do! Within this area of our site have literally hundreds of how-to guides and tutorials that cover a huge range of home improvement tasks. Each page also comes with pictures and a video to make completing those jobs even easier!