My Potterton EP2002 controller lights are on but not firing hw or ch?
My Potterton EP2002 controller lights are on but not firing hot water boiler or central heating. I only had it changed over a year ago , it worked fine the night before, the hot water boiler worked but the central heating didn't, an hour later none of it worked and no ignition even though the lights are still on,
Stephen Hare
February 2009
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