OK Guys, checked diverter, CH stays cold while the DHW is nice and hot. Changed the Thermistor for a new one. Still the same problem. Any other ideas??
Thanks
Tim
Agile, If there was a hot water demand then the radiators wouldnt heat up because the DHW demand takes priority...or am I wrong ? SUrely the boiler would fire up and heat the water then shut down??? I'm a bit confused....
Tim
I have a Protherm Combi boiler Protherm 80E which, until recently, worked perfectly. The Central Heating is on continuously now and I can'tt switch it off with either the timer switch, nor with the room thermostat. It just keeps coming on. At the moment I have to turn it off at the mains...