Daikin Air Conditioner Error CC
⚡ Quick Answer: The Daikin Air Conditioner CC error indicates a communication failure related to the humidity sensor in the indoor unit. This issue may arise from a d... ✅ DIY Fixable
What Does Error CC Mean?
The Daikin Air Conditioner CC error indicates a communication failure related to the humidity sensor in the indoor unit. This issue may arise from a defective humidity sensor, a problem with its connections, or abnormalities in the control board affecting sensor signals. As a result, the air conditioner may continue to operate but with inaccurate or disabled humidity control, leading to ineffective cooling.
Common Symptoms:
- Indoor unit displays CC on controller or LED indicators
- Air conditioner continues to run but humidity control may be inaccurate or disabled
Possible Causes
- Defective humidity sensor in indoor unit (high)
- Humidity sensor connection/contact issue (medium)
- Indoor unit control/processing board abnormality affecting humidity sensor signals (medium)
How to Fix Error CC
DIY Fix Basic reset and check
- Stop air conditioner operation
- Turn off power (unplug or dedicated breaker)
- Wait ~1 minute
- Restore power and restart
Technician Only Inspect and repair humidity sensor and associated components
- Check humidity sensor functionality and replace if defective
- Inspect and secure humidity sensor connector and wiring
- Test related control board connections and replace PCB if signals are faulty
Parts needed: Humidity sensor, Sensor wiring/connectors, Indoor unit PCB (if needed)
- If CC persists after basic reset
- If other codes appear simultaneously
- If there are signs of electrical or mechanical failure
Next step
Choose the next step for CC
Confirm the diagnosis before ordering. An error code can identify the system involved, but it does not prove that a specific part has failed.
Most relevant component to inspect
Humidity Sensor
Measures relative humidity so the appliance can regulate drying or moisture removal.
- Typical part-only price
- $20 - $100
- DIY difficulty
- Medium
- Estimated time
- 20-60 mins
Where can I find the model number?
Check the rating label around the door, lid, frame, rear panel, or inside the appliance cabinet. Use the complete model number, including suffixes.
Verify the complete model and part number on the retailer's compatibility page before ordering.
Other parts options
Check related components first; use model search as a fallback.
Wiring Harness
Connects controls, sensors, motors, and other electrical components inside the appliance.
HVAC Control Board
Controls fan, compressor, sensor, and communication functions in the HVAC unit.
Model-compatible Air Conditioner parts
Enter the complete model number to browse compatible replacement parts. This is a model-based parts search, not a diagnosis that a specific component failed.
Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. We may earn a commission from other qualifying purchases or service requests made through links on this page, at no additional cost to you. Recommendations are based on repair relevance, not commission rate.
Optional routine care
Maintenance supplies
These products support cleaning or routine upkeep. They are separate from the possible repair components above and are not claimed to fix this error code or symptom.
Air Conditioner Fin Cleaner
For routine cleaning of accessible coil fins when permitted by the manufacturer. Disconnect power and follow product and appliance instructions.
Model-Compatible Washable AC Filter
A reusable filter option only where the appliance supports one. Match the full model, dimensions, and filter specification.
Compatibility check required: use the complete appliance model and compare the existing filter, bag, or specification before ordering.
Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. Recommendations are based on routine-care relevance, not commission rate.
Technical Specifications
| wattage | 3000W |
|---|---|
| component | Compressor Control Board |
| resistance | 3-5 ohms |
| part_number | DAIKIN 4C134A |
| voltage_rating | 230V AC |
Common Questions
What does CC error mean on Daikin Air Conditioner?
The CC error indicates a communication failure with the humidity sensor, impacting cooling effectiveness.
Can I fix Daikin Air Conditioner CC error myself?
Yes, you can attempt a basic reset by turning off the power for about a minute.
How much does it cost to fix CC error?
Repair costs typically range from $100 to $400+, depending on parts and labor.
When should I call a technician for CC?
Call a technician if the CC error persists after a reset, if other error codes appear, or if there are signs of electrical issues.
Sources & References
- Daikin CC error humidity sensor explanation (community)
Data last verified: 2026-07-20
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