What It Means
Room temperature thermistor in remote controller abnormality.
Daikin Split & Multi-Split
Daikin Split & Multi-Split Error Code CJ
Troubleshooting guide for the Daikin Split & Multi-Split system fault CJ.
Possible Causes
- Defective room temperature thermistor in remote controller Defective remote controller PCB.
- External factor (Noise etc.).
Not sure which one it is — or if it's none of these? Try ACLogics today.
Disclaimer: This information is for general reference. Error codes can vary by model and production year. Always refer to your machine's specific manual and the information printed on the unit itself.
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Full Diagnosis
Room temperature thermistor in remote controller abnormality
All Recorded Causes
Defective room temperature thermistor in remote controller Defective remote controller PCB External factor (Noise etc.)
Verify Before Replacing Parts
- Confirm the exact Daikin model family and split/ multi split context before acting on a generic code description.
- Verify the sensor or thermistor reading against the expected range for the current operating condition, keeping in mind that defective room temperature thermistor in remote controller Defective remote controller PCB.
- Check the sensor harness and board connection before condemning the sensor itself; on Daikin units this is also where you'd confirm external factor (Noise etc.).
- After the correction, run the system long enough to confirm the split/ multi split fault does not return under normal load.
Still unsure about this fault?
ACLogics walks you through Daikin Split & Multi-Split diagnostics step-by-step — so you confirm the cause before swapping parts.
