What It Means
Loss of compressor power, open internal protector, or improper control wiring.
Goodman All Systems
Goodman Error Code 05
Troubleshooting guide for the Goodman system fault 05.
Possible Causes
- Disconnected main power.
- Failed or open compressor internal protector.
- Improper wiring between compressor and control board.
Not sure which one it is — or if it's none of these? Try ACLogics today.
Disclaimer: This information is for general reference. Error codes can vary by model and production year. Always refer to your machine's specific manual and the information printed on the unit itself.
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Full Diagnosis
Power is disconnected./Failed compressor protector./Compressor not properly wired to control.
All Recorded Causes
Verify Before Replacing Parts
- Confirm the exact Goodman model family and default context before acting on a generic code description.
- Verify current draw, overload status, and control signal before condemning the compressor or drive, given that the most likely cause listed above.
- Look for upstream conditions such as airflow or charge issues that may be pushing the compressor into protection, and check the next candidate on the list.
- After the correction, run the system long enough to confirm the default fault does not return under normal load.
Not sure which system this Goodman code is on?
ACLogics has guided diagnostics for 20 Goodman fault codes and asks the right questions to narrow it down.
