Why does my heating come on when the timer is off?
Why does my heating come on when the timer is off? If the heating is coming on when it is set to OFF, then the system requires further investigation. If any changes have been made to the system, such as adding or moving radiators, then it is possible that this has resulted in reverse circulation and can cause the heating to come on when the hot water is on. Why does my boiler pump keep running? Your boiler has "pump overrun" so the pump is connected directly to the boiler. The pump should run for a few minutes after the...