Since switching Sime Friendly E boiler over from winter to summer setting I am no longer getting any hot water. 'Demand' light doesn't come on when hot tap is opened. Pressure o.k. Is this an internal electrics fault?
Any help??
Thanks
Worcester Bosch 280 RSF hot water o.k. but central heating has stopped working. Boiler lights and burns for about 20 seconds then goes out!!! Will come on again for hot water, then goes out again for central heating.
Any help appreciated.
Joeyd