Carrier Error Code E5
Evaporator coil sensor fault
Error Code Summary
| Brand | Carrier |
| Error Code | E5 |
| Meaning | Evaporator coil sensor fault |
| Cause | T2 thermistor open or short circuit |
| Recommended Action | Check T2 sensor resistance, replace if needed |
How to Fix Carrier Error E5
- 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 E5 means: Evaporator coil sensor fault. The most common cause is: T2 thermistor open or short circuit.
- 3
Take Corrective Action
Check T2 sensor resistance, replace 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 Carrier error code E5 mean?
Carrier error code E5 indicates: Evaporator coil sensor fault. This is typically caused by: T2 thermistor open or short circuit.
How do I fix Carrier error code E5?
To fix Carrier error code E5: Check T2 sensor resistance, replace if needed. If the error persists after these steps, contact a qualified HVAC technician.
Is Carrier error code E5 serious?
Error code E5 (Evaporator coil sensor fault) should be addressed promptly to prevent further damage to your Carrier system. Always turn off the unit if you notice unusual sounds, smells, or continued malfunction.