i have moved into a new apartment and i accidently turned the boiler off and turned it right back on. The boiler now only works when the hot water taps are on. The central heating has not come on for 2 days and i am freezing. please help. i have tried turning the switch from the flame ignition on and holding it there and there is a gas valve that i opened and closed that didnt help either!!many thanks
Make sure the pressure is correct on the boiler gauge. It should read about 1.0 to 1.5 bar when cold. Repressurise with the filling loop. It may just be that the CH controls aren't set right. Start with the CH control which should be on the face of the boiler case. It is often shown as a radiator icon. Then make sure your room thermostat is set to call for heat i.e. 21 C. If the boiler doesn't fire then there is probably a timer/programmer issue. If you have a timer on the boiler set it to 'constant' or whatever implies that. If the boiler still does not fire, yet works on HW there is a fault such as sticking diverter valve (a job for a CORGI man). If you go to www.vaillant .uk you can get to manuals etc after you key in the boiler name. This may help in further diagnosis.
