Daikin Mini Split Error Code CC: How to Fix It

Q: What does error code CC mean on a Daikin mini split?

Error code CC indicates a fault with the indoor humidity sensor. The system cannot properly measure humidity, which may affect dehumidification and temperature control.

Q: Can I still use my Daikin AC with error code CC?

You can use the system in cooling or heating mode, but humidity control may be impaired. It's best to fix the error to ensure optimal comfort and efficiency.

Q: How much does it cost to replace a Daikin humidity sensor?

The sensor itself typically costs between $20 and $50. DIY replacement can save on labor costs, but if you hire a pro, expect $100-$200 for the service call and installation.

Q: Where is the humidity sensor located on a Daikin mini split?

The humidity sensor is inside the indoor unit, usually mounted on the evaporator coil or on the main control board. Refer to your unit's service manual for exact location.

Q: Will error code CC go away on its own?

Sometimes a temporary glitch can be cleared by resetting the system (turn off power for 5 minutes). If the code returns, there is a persistent sensor issue that needs repair.

Abstract

Error code CC on your Daikin mini split indicates a humidity sensor fault. This means the sensor that measures indoor humidity has malfunctioned, potentially affecting comfort and cooling efficiency. Follow the steps below to diagnose and resolve the issue safely.