I have a central heating / electrical problem. The system is a Baxi 45 backboiler and integral Baxi Barque fire front. The system is part gravity part pumped. The power supply to the heating is from a 3/5amp switched fused spur; Landis & Gyr electro mechanical programmer.
Problem. When I activate the heating via the programmer the fuse in the spur unit blows. The boiler has been serviced. Any ideas on what the problem could be. I know it all sunds a bit vague. I don't know whether to call in an elctrician or a heating engineer? :(
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