System Diagnosis
Coil temperature sensor fault (open or shorted).
Trane | AC and Heat Pump
Error Code Red 6 Flashes
Troubleshooting guide for the Trane AC and Heat Pump system fault Red 6 Flashes.
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.
Potential Causes & Solutions
- Inspect the coil sensor on the outdoor unit and ensure it’s securely in place with no damaged wiring.
- Replace the sensor if faulty.
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