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Error code reference

Goodman HVAC Error Codes

6 error codes documented with diagnostic procedures.

Have your model number? Get codes specific to your unit.
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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More Goodman error codes

Common questions

How do I find the error code on my Goodman HVAC?
Most Goodman hvacs show the code directly on the control panel display. If your model has no display, it can be read by entering diagnostic mode with the key sequence for your model. The full procedures include model-specific instructions for reading codes.
Are these codes specific to my model?
The codes here apply broadly to Goodman hvacs. Meanings and diagnostic steps can vary by model and production year, so enter your model number for model-specific information and procedures.
What do I do if my code is not listed?
Some codes are model-specific or only appear in diagnostic mode. Enter your model number to get codes specific to your unit, or contact us. We update the database continuously from manufacturer service documentation.
How much does it cost to access the full diagnostic procedures?
A 3-day pass is $9.95 one-time and gives full access to all brands, codes, and procedures. Monthly access is $29/month with unlimited access to everything including Max AI diagnostics.