Daikin Error Code E6: Standard Compressor Motor
Warning: Your Daikin HVAC system has detected a standard compressor motor issue. It's safe to operate, but call a professional for repair soon.
How to Fix Daikin Code E6
- Turn off your HVAC system at the thermostat and at the circuit breaker to prevent further operation until a professional can inspect it.
- Contact a Daikin-trained HVAC technician to diagnose and repair the issue. They have the specialized tools and knowledge to safely and effectively repair your system.
How to Reset Daikin Code E6
- Turn off the unit using the remote control or wall controller.
- Turn off the circuit breaker for the outdoor and indoor units. Wait 60 seconds.
- Restore power at the breaker.
- Turn the unit on with the remote control. If the error returns, the fault needs professional diagnosis.
Resetting clears the code from the display but does not fix the underlying fault. If the code returns after reset, proceed to the diagnostic steps above.
What Does Daikin Error Code E6 Mean?
The Daikin E6 error code indicates a problem with your system's standard compressor motor. The compressor is the heart of your HVAC system, and this error suggests it's not working as it should. This could be due to an issue with the motor itself, or it might be a problem with the electrical components that control it. Don't worry, your system is still safe to operate, but it's important to address this issue promptly to prevent further damage or system failure.
Common Causes
- Worn out compressor motor
- Faulty compressor motor control board
- Loose or damaged electrical connections
- Clogged or dirty compressor
Diagnostic Steps
| If... | Check | Expected |
|---|---|---|
| You hear unusual noises coming from your outdoor unit | Inspect the compressor for any visible damage or debris | No damage or debris, normal operation |
| Your system is not cooling or heating properly | Measure the refrigerant pressure using a manifold gauge set | Normal pressure for your system's operating mode |
Applicable Daikin Models
- Daikin Comfort(electric)
- Daikin Fit(electric)
- Daikin Intelligent Touch(electric)
- Daikin Latitude(electric)
- Daikin Unitary System(electric)
- FIT(electric)
- Inverter Ducted Split System(electric)
- LV Series(electric)
- MXS(electric)
- Multi-Zone(electric)
- NCB(electric)
- NCM(electric)
- NCV(electric)
- NCW(electric)
- NMB(electric)
- NMP(electric)
- NPE(electric)
- NTV(electric)
- NW(gas)
- NWZ(dual_fuel)
- Quaternity(electric)
- SkyAir(electric)
- VRV(electric)
- VRV IV(electric)
Replacement Parts
| Part | OEM Number | Est. Cost | Where to Buy |
|---|---|---|---|
| Compressor Motor | — | — | — |
| Compressor Motor Control Board | — | — | — |
Related Codes on Same Models
Other codes that affect the same Daikin model families as E6.
| Code | Description | Severity |
|---|---|---|
| A1 | Indoor PCB Defective | Warning |
| A3 | Drain Level System Fault | Warning |
| A5 | Freeze-Up/Overheat Protection | Warning |
| A6 | Fan Motor Lock/Overcurrent | Warning |
| C4 | Heat Exchanger Thermistor Fault | Warning |
| C9 | Suction Air Thermistor Fault | Warning |
| E1 | Outdoor PCB Defective | Warning |
| E3 | High Pressure Switch Activated | Warning |
| E4 | Low Pressure Switch Activated | Warning |
| E5 | Compressor Motor Lock | Warning |