Daikin Error Code A6: Fan Motor Lock/Overcurrent
Warning: Your Daikin HVAC system has detected a potential fan motor issue. It's safe to continue using the system, but you should schedule a professional repair soon.
How to Fix Daikin Code A6
- Turn off your HVAC system at the thermostat and the main power switch.
- Check if the fan motor is making unusual noises. If it's unusually loud or grinding, it's best to call a professional.
- When calling a professional, have the model number of your Daikin system ready for a faster diagnosis and repair.
How to Reset Daikin Code A6
- 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 A6 Mean?
Daikin's A6 error code indicates that your system has detected an overcurrent or lock condition in the fan motor circuit. This could be due to a faulty motor, seized bearing, or an electrical issue. The system has likely entered a safety lockout mode to prevent damage. While it's safe to continue using the system, it's important to address this issue promptly to prevent further damage or a complete system failure.
Common Causes
- Faulty fan motor
- Seized fan motor bearing
- Electrical issue in the fan motor circuit
- Dirty or clogged fan, causing it to struggle and overheat
Diagnostic Steps
| If... | Check | Expected |
|---|---|---|
| Fan motor is running but not spinning | Measure the resistance of the fan motor winding using a multimeter | Within the manufacturer's specified range (usually 5-15 ohms) |
| Fan motor is not running but the system is powered on | Check the fan motor capacitor for bulging or leakage | No signs of damage or leakage |
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 |
|---|---|---|---|
| Fan Motor | 41023C122A00 | — | Find Part |
| Fan Motor Capacitor | 41023C122A01 | — | Find Part |
Related Codes on Same Models
Other codes that affect the same Daikin model families as A6.
| Code | Description | Severity |
|---|---|---|
| A1 | Indoor PCB Defective | Warning |
| A3 | Drain Level System Fault | Warning |
| A5 | Freeze-Up/Overheat Protection | Warning |
| C4 | Heat Exchanger Thermistor Fault | Warning |
| E1 | Outdoor PCB Defective | Warning |
| E4 | Low Pressure Switch Activated | Warning |
| E5 | Compressor Motor Lock | Warning |
| E6 | Standard Compressor Motor | Warning |
| F3 | Discharge Pipe Temp High | Warning |
| H6 | Position Sensor Fault | Warning |