Problems related to residential installations.
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I have an older Carrier natural gas furnace( model # 398AAW0360800). When I turn the thermostat to heat the purge fan comes on and the pilot ignites.......thats it...the main valve doesn't seem to come on and it just purges forever. There are no LED lights to help troubleshoot.
i was a little puzzled by that statement myself dilkey. if you jumpered out a control with two wires near the burner, it could be a safety device - maybe a rollout sensor. if you do not understand these controls and what they are for, you could be creating a fire hazard. there is nothing there that should be jumpered to allow the furnace to run.