Lennox Error Code H6
Compressor motor stalling
Error Code Summary
| Brand | Lennox |
| Error Code | H6 |
| Meaning | Compressor motor stalling |
| Cause | Compressor rotor locked or unable to start |
| Recommended Action | Check compressor, starting circuit, refrigerant pressures, and power supply |
How to Fix Lennox Error H6
- 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 H6 means: Compressor motor stalling. The most common cause is: Compressor rotor locked or unable to start.
- 3
Take Corrective Action
Check compressor, starting circuit, refrigerant pressures, and power supply
- 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 Lennox error code H6 mean?
Lennox error code H6 indicates: Compressor motor stalling. This is typically caused by: Compressor rotor locked or unable to start.
How do I fix Lennox error code H6?
To fix Lennox error code H6: Check compressor, starting circuit, refrigerant pressures, and power supply. If the error persists after these steps, contact a qualified HVAC technician.
Is Lennox error code H6 serious?
Error code H6 (Compressor motor stalling) should be addressed promptly to prevent further damage to your Lennox system. Always turn off the unit if you notice unusual sounds, smells, or continued malfunction.