Active HVAC Mechanic Support Forums

by **hawk3368** » Sun Dec 12, 2010 8:54 pm

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.