Bit of a long shot as this is quite specialised, but does anyone have the skills on here to test/fix a small circuit board on the thermostats of some electric radiators? My electrician does not have that sort of knowledge, and two of them have packed up. Its probably a 50p part making the radiators defunct. The company I got them from have no interest (don't get me started on that!). I'm in Shad Thames, cheers in advance, Si.