Gas and Oil Home Heating Furnaces - No call for heat (LED status) on Diamond 80

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rgnarayanan
12-16-08, 08:25 AM
I have a Diamond 80 furnace that is giving me trouble off-late. The heater starts fine, runs for a while and occasionally (seems to be more frequent now) the heat goes off and only the fan keeps blowing. I also see a red LED blink continuously on the unit which translates to 'No call for heat'..Any ideas what could be causing this