Daikin Aircon CC Error Code
Capture the Daikin CC fault correctly, then see what should be checked before parts are quoted. Match the model first; same-looking codes can point to different rows.
What does Daikin CC mean?
Daikin CC is listed as faulty humidity sensor and malfunction of humidity sensor system in Inverter Split, Multi-Split, Ceiling Cassette rows such as iSmart ENVi, iSmileEco. This meaning comes from the manufacturer's own diagnostic material. Do not collapse this code across model families; use the model, series, or system type to choose the right row. Confirm the exact model, series, or signal row before accepting a parts quote.
Choose the listing that matches your unit
The same code has more than one listed meaning. Match the model family, the system type and the unit that shows the code before approving parts.
| Code | What it means | What to check first |
|---|---|---|
| iSmart ENVi | Faulty humidity sensor | Match this meaning to your installed model and the unit that shows the code, then use the checks below. |
| General RA self-diagnosis guide | Malfunction of humidity sensor system | Match this meaning to your installed model and the unit that shows the code, then use the checks below. |
- Code
- iSmart ENVi
- What it means
- Faulty humidity sensor
- What to check first
- Match this meaning to your installed model and the unit that shows the code, then use the checks below.
- Code
- General RA self-diagnosis guide
- What it means
- Malfunction of humidity sensor system
- What to check first
- Match this meaning to your installed model and the unit that shows the code, then use the checks below.
What to do now
Use these steps before customer action, a sensor check, or PCB quote.
Treat it as a fault signal
If CC remains displayed or cooling is still abnormal, preserve the code and arrange diagnosis.
No manufacturer reset steps listed for CC
Capture the complete CC display and model stickers first. The manufacturer lists no customer reset procedure; do not treat a generic power-cycle as manufacturer guidance.
Send these to us
CC error code, a clear display photo, Daikin model stickers, affected rooms, operating state when the code appeared, and when the fault appears
Guidance for your model
Notes that match the code to your exact model. Electrical, refrigerant, wiring, resistance and component checks are for a technician.
| Detail | What it says |
|---|---|
| Diagnostic note | Stop the system if it smells burnt, leaks, or trips power; note the exact model and code before booking diagnosis. |
| Singapore / model note | This row is taken from the selected Daikin operation manual's remote-controller fault diagnosis table. |
| Singapore / model note | Official Daikin SM-TS3 self-diagnosis row. Manual causes: Defective humidity sensor; Defective connector contact. |
- Detail
- Diagnostic note
- What it says
- Stop the system if it smells burnt, leaks, or trips power; note the exact model and code before booking diagnosis.
- Detail
- Singapore / model note
- What it says
- This row is taken from the selected Daikin operation manual's remote-controller fault diagnosis table.
- Detail
- Singapore / model note
- What it says
- Official Daikin SM-TS3 self-diagnosis row. Manual causes: Defective humidity sensor; Defective connector contact.
What to check before repair
Use this split to separate safe evidence capture from the tests a technician should prove before quoting parts.
| You can check | Technician should confirm |
|---|---|
| Before taking any system action on CC, take a clear display photo. | Confirm which sensor CC maps to on the exact model table. |
| Capture the Daikin indoor and outdoor model stickers so the correct family row is used. | Measure the sensor value against the service-manual resistance or voltage range. |
| The manufacturer lists no customer reset procedure for this code. Note whether one room, several rooms, or the whole system is affected. | Check connector condition, harness continuity, and PCB input before replacing boards. |
- You can check
- Before taking any system action on CC, take a clear display photo.
- Technician should confirm
- Confirm which sensor CC maps to on the exact model table.
- You can check
- Capture the Daikin indoor and outdoor model stickers so the correct family row is used.
- Technician should confirm
- Measure the sensor value against the service-manual resistance or voltage range.
- You can check
- The manufacturer lists no customer reset procedure for this code. Note whether one room, several rooms, or the whole system is affected.
- Technician should confirm
- Check connector condition, harness continuity, and PCB input before replacing boards.
Sensor or PCB decision
Daikin CC is usually repair-first if a sensor or harness reading is confirmed. Board replacement should wait until the sensor circuit is tested.
Sensor replacement is usually targeted when resistance or voltage readings are out of range.
Harness or connector damage can look like a sensor fault until continuity is checked.
PCB replacement is a later step if the sensor and wiring test correctly.
Daikin CC questions
What does the Daikin CC error mean?
Can I fix a Daikin CC error myself?
Is it safe to keep running the aircon with a CC error?
What causes a Daikin CC error?
Will a Daikin CC error need a repair or a full replacement?
What should I send a technician about a Daikin CC error?
Confirm the fault
Share the error code, model number and symptoms so we can assess the likely cause.
Not the right code?
Browse the full Daikin list or check a few codes in the same fault category.
Describe your situation
Tell us what’s going on. Symptoms, setup, photos, anything we should know. We’ll assess and come back with the right next step.
Read next
Use these if the quote mentions the parts, checks, or repair path this code points to.