Daikin | VRV

Error Code C9

Troubleshooting guide for the Daikin VRV system fault C9.

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.

System Diagnosis

Malfunction of suction air thermistor

Potential Causes & Solutions

  • Defective thermistor for suction air.
  • Defective indoor unit PCB.
  • Defective connector contact.

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