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Error code reference
Goodman HVAC Error Codes
6 error codes documented with diagnostic procedures.
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1Ignition failure, open rollout switch, or open auxiliary limit switch detected by the DSI…2Inducer end switch is open when it should be closed, preventing ignition sequence from…3End switch is closed without inducer motor running, indicating a stuck or failed end…4Open main limit switch detected during operation.5False flame sensed by the ignition control, indicating a sticking gas valve or flame…6Compressor output delay or anti-cycle timer active (3-minute compressor delay).
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Step-by-step tests, expected values, wiring diagram references, and verified part numbers.
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