Trane Err 173 Repair Guide
The Trane Err 173 error code is associated with a faulty temperature sensor drop, which can cause issues with the system’s ability to regulate temperature. This error code is considered medium severity and should be addressed promptly to prevent further damage to the system.
Diagnostic Overview
To diagnose the Err 173 error code, technicians should follow a systematic approach to identify the root cause of the issue. The following diagnostic table outlines the possible causes and corresponding troubleshooting steps:
| Error Code | Possible Cause | Troubleshooting Steps |
|---|---|---|
| Err 173 | Temperature sensor drop | Check temperature sensor wiring and connections for damage or corrosion. Verify temperature sensor calibration and replace if necessary. |
| Err 173 | Faulty temperature sensor | Measure temperature sensor resistance and compare to manufacturer’s specifications. Replace temperature sensor if resistance is out of range. |
| Err 173 | Incorrect temperature sensor installation | Verify temperature sensor installation and ensure it is properly secured and insulated. |
Repair Procedure
To repair the Trane Err 173 error code, follow these step-by-step instructions:
- Shut down the system: Switch off the power to the Trane system at the circuit breaker or fuse box.
- Locate the temperature sensor: Identify the temperature sensor location, which is usually near the evaporator coil or in the return air duct.
- Inspect the temperature sensor wiring: Check the temperature sensor wiring and connections for damage, corrosion, or signs of wear. Repair or replace the wiring as needed.
- Verify temperature sensor calibration: Check the temperature sensor calibration using a multimeter or other diagnostic tool. Compare the readings to the manufacturer’s specifications and adjust or replace the sensor if necessary.
- Replace the temperature sensor: If the temperature sensor is faulty, replace it with a new one that meets the manufacturer’s specifications.
- Secure the temperature sensor: Ensure the temperature sensor is properly secured and insulated to prevent damage or interference.
- Test the system: Power on the Trane system and verify that the Err 173 error code is cleared.
Troubleshooting Tips
When troubleshooting the Err 173 error code, keep the following tips in mind:
- Always follow proper safety procedures when working with electrical systems.
- Use a multimeter or other diagnostic tool to measure temperature sensor resistance and verify calibration.
- Consult the Trane system manual or technical documentation for specific instructions and guidelines.
- If unsure or uncomfortable with the repair procedure, consider hiring a qualified technician or contacting Trane support.
Conclusion
The Trane Err 173 error code can be caused by a faulty temperature sensor drop, which can be repaired by following the step-by-step instructions outlined in this guide. By understanding the diagnostic process and repair procedure, technicians can quickly and effectively resolve the issue and restore the system to proper operation.