Daikin | Split/ Multi Split

Error Code C5

Troubleshooting guide for the Daikin Split/ Multi Split system fault C5.

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 gas pipe thermistor for heat exchanger

Potential Causes & Solutions

  • Defective thermistor for gas pipe.
  • Defective indoor unit PCB.
  • Defective connector contact.

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