ErrorCodeDoctor
Daikin Air Conditioner L6 error code
The L6 error means your Daikin air conditioner's inverter detected an instantaneous overcurrent on the AC output side. This can be caused by refrigerant overcharging, a shortage of power supply capacity, a defective compressor, or a defective inverter unit. Contact a qualified technician.
Common causes
- Overcharge of refrigerant amount
- Shortage of power supply capacity
- Defective compressor
- Defective inverter unit
How to fix it
-
1
Contact a qualified technician to inspect the inverter AC output and refrigerant charge level
Related Daikin Air Conditioner error codes
A0
An external protection device connected to the indoor unit has been activated
A1
A fault was detected in the indoor unit PCB (control board)
A3
The drain level control system has detected an abnormality — drain may be clogged
A5
Freeze-up protection (cooling) or high pressure control (heating) has activated — check the air filter
L6 error — frequently asked questions
What does the L6 error mean on a Daikin air conditioner?
The inverter detected an instantaneous overcurrent on the AC output
What causes the L6 error?
The L6 error is usually caused by: Overcharge of refrigerant amount; Shortage of power supply capacity; Defective compressor; Defective inverter unit.
Can I fix the L6 error myself?
This is rated a hard fix — it often requires tools, parts, or experience, and may be safer left to a professional technician.
How much does it cost to fix the L6 error?
Fixing the L6 error on a Daikin air conditioner typically costs $150–$500, depending on parts and whether you do it yourself or hire a technician.
Is it safe to keep using my air conditioner with the L6 error?
We'd recommend addressing the L6 error before continuing to use the air conditioner, since hard-rated issues often involve a real fault rather than a minor glitch.