General topics about all things heating, ventilation, air conditioning and refrigeration.
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i have a lennox ec10 electric furnace. the problem is ocasionaly it does not start up when thermostat is calling for heat. if i remove outer cover and give it a tap or two around furnaces electronics it will restart.even when furnace will not start on its own if i put fan switch on the fan will run fine. i have had 2 repair people in to diagnose the problem but they are stumped.