voovon
11-16-04, 06:27 AM
:eek: Our Potterton Gas combi gas boiler is overheating all the radiators and cannot be regulated. Thermostat and temperature sensor have been replaced but has made no difference. The hot water knob when turned down turns the heating off, when it shouldn't. Any ideas as to what to try next please? The PCB has been checked but nothing wrong has been found.