On the covered Goodman gas furnace, E11 means an open roll-out switch. Roll-out means flame or hot gas came out of the burner area, which is a safety trip. First, do not reset repeatedly; leave the furnace off and do not look for the switch yourself.
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0 of 4 completedWhat to do first
ReversibleDo not reset repeatedly; leave the furnace off and do not look for the switch yourself.
Correct only the documented fault domain
ReversibleGoodman's corrective actions: check for correct gas pressure, check for correct burner alignment, and check for and correct burner restriction. A rollout trip is a combustion or venting fault, so this needs a technician.
Do not just reset it
ReversibleThe rollout switch opens when flame or heat appears outside the combustion chamber. Its small reset button should be pressed only after the cause has been found; if the code returns within one or two heating cycles, stop resetting.
Get the furnace inspected
ReversibleThe most worrying cause is a cracked or blocked heat exchanger. Blocked burners, a blocked flue or air inlet and a failed draft inducer are the others, and all are for a technician.
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Common questions about “Goodman gas furnace code E11”
What does E11 mean on a Goodman gas furnace?+
An open roll-out switch. Roll-out means flame or hot gas came out of the burner area, which is a safety trip.
Is it safe to keep resetting the rollout switch?+
No. Repeated resets hide a real combustion problem. Have a technician inspect the heat exchanger and venting first.