System Diagnosis
Room temperature thermistor in remote controller abnormality
Daikin | Fan Coil
Error Code CJ
Troubleshooting guide for the Daikin Fan Coil system fault CJ.
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.
Potential Causes & Solutions
- Defective room temperature thermistor in remote controller Defective remote controller PCB.
- External factor (Noise etc.).
Diagnose with Confidence
Use the ACLogics AI assistant to walk through this error code step-by-step.
Included in Diagnosis Workflow
Ask
Upload nameplate & symptoms
Diagnose
AI identifies error CJ
Report
Generate professional PDF