Question about Air Conditioners
Check to see that there are no obstructions in the exhaust flue.
Make sure the inducer fan is operating and the blades are intact. (if your unit is equipped with a draft inducer motor.)
Flame rollout can also be cause by cracked heat exchangers when the blower kicks on, or from wind blowing into the flu in reverse.
(Bad/missing wind deflector outside on top of flue, or unusually gusty wind in unusual angles.)
Posted on Dec 13, 2008
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