American Standard | AC and Heat Pump

Error Code Green LED (Medium Flash – 2x/second)

Troubleshooting guide for the American Standard AC and Heat Pump system fault Green LED (Medium Flash – 2x/second).

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.

System Diagnosis

Active call for cooling/heat (compressor running at capacity).

Potential Causes & Solutions

  • Normal operation.

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