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Hi there, slight issue with my central heating system. When I switch to hot water to heat the cylinder the upstairs radiators get hot, tried turning the rads off but then the downstairs ones get hot! I've opened the valve and turned it manually and all seems fine, as well as the valve I have a...

Quick question, at one stage all lights were flashing on panel and on/off light flashing. Now just lights 1&4 - if I buy the 1000u capacitor from Maplin is that all I need or do I need a board from EMW too? If I buy the board I guess I don't need the capacitor? Sorry in advance, I know this...