How does the central heating system work?
Central heating is usually controlled by a time clock in conjunction with at at least 3 thermostats, a boiler thermostat, a room thermostat, and a thermostat on the domestic hot water cylinder. Click here for essential information on central heating controls and here if you want to know more about heating systems. When a property has been empty the heating system is often switched off. First of all, check that there is electrical power and to the heating system and that the gas supply hasn’t been turned off at the gas meter. There should be an on/off switch on the wall next to a time clock which is often located in the kitchen or near the boiler. It may be set to “Off”, or may just be set to come on for a few hours a day. The display should tell you the timer “status” i.e. “Off”, “On”, “Auto”, “On Once”, or “On Twice”. Be aware that the functions on different manufacturers’ timers do vary and could be either digital displays or simple mechanical controls. To test it set the time clock
