Goodman ALXS5BA**10AA Error Codes

Updated October 13, 2026 · by Aurora Star Tech Inc.

Goodman ALXS5BA**10AA error codes and diagnostic codes (also listed as ALXS560BA10AA). The ALXS5BA**10AA is a Goodman air conditioner in the Goodman/Amana R-32 GLXS/ALXS series.

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Goodman ALXS5BA**10AA error codes list

Code	Meaning	Severity
CoreSense 1	Yellow 1 flash - long run time (low side)	Medium
CoreSense 2	Pressure trip - yellow 2 flashes (red 2 = lockout)	High
CoreSense 3	Short cycling / pressure switch cycling - yellow 3 (red 3 = lockout)	Medium
CoreSense 4	Locked rotor - yellow 4 (red 4 = lockout)	Critical
CoreSense 5	Moderate run trip - yellow 5 (red 5 = lockout)	High
CoreSense 9	Red 9 flashes - PROT output overcurrent	High
CoreSense solid red	Solid red TRIP - call present but compressor not running	High

Troubleshooting the ALXS5BA**10AA

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General guidance for qualified technicians. The manufacturer's installation and service manual and local codes always take priority. Aurora Star Tech is not affiliated with, endorsed by or sponsored by any equipment manufacturer; brand and model names are used only to identify equipment and belong to their owners.

Goodman ALXS5BA**10AA error codes list

Troubleshooting the ALXS5BA**10AA

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