Recent content by ajpen207

Hi All Turns out it was a weird electrical fault with the motorised valve for the hot water. Somehow it was causing the pump to circulate even when the boiler and hot water controls were off. We have fitted a new valve and the pump, boiler and thermostat are now behaving normally for the...

Hi Thank you for responding. Yes we do and both of them open and close as we would expect. The circulating pump on the boiler keeps going even when the wall thermostat programs for hot water and heating are off. The only way to stop it is to turn the whole boiler off at the isolator switch.

We are trying to work out what is wrong with the boiler pump which continuously circulates water even when there has been no call to heat the rads or water. We have checked the external thermostatic controller which is working correctly and is correctly wired up. The zone valves are also...