Trane Error Code E320
OLP sensor open or short
Error Code Summary
| Brand | Trane |
| Error Code | E320 |
| Meaning | OLP sensor open or short |
| Cause | Compressor top sensor or circuit board defective |
| Recommended Action | Check OLP sensor, replace PCB if needed |
How to Fix Trane Error E320
- 1
Power Cycle the Unit
Turn off the unit at the breaker, wait 5 minutes, then restore power. Some errors auto-clear after a restart.
- 2
Identify the Issue
Error E320 means: OLP sensor open or short. The most common cause is: Compressor top sensor or circuit board defective.
- 3
Take Corrective Action
Check OLP sensor, replace PCB if needed
- 4
Test the System
After completing repairs, run the system and monitor for the error code. If it recurs, the issue may require professional diagnosis.
Safety Notice
Always disconnect power before performing any electrical work. If you're not a certified HVAC technician, contact a qualified professional for repairs involving refrigerant, electrical components, or compressor work.
Frequently Asked Questions
What does Trane error code E320 mean?
Trane error code E320 indicates: OLP sensor open or short. This is typically caused by: Compressor top sensor or circuit board defective.
How do I fix Trane error code E320?
To fix Trane error code E320: Check OLP sensor, replace PCB if needed. If the error persists after these steps, contact a qualified HVAC technician.
Is Trane error code E320 serious?
Error code E320 (OLP sensor open or short) should be addressed promptly to prevent further damage to your Trane system. Always turn off the unit if you notice unusual sounds, smells, or continued malfunction.