Daikin | Split/ Multi Split

Error Code P3

Troubleshooting guide for the Daikin Split/ Multi Split system fault P3.

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 thermistor in switch box

Potential Causes & Solutions

  • Defective connection of thermistor.
  • Defective reactor thermistor.
  • Defective inverter PCB.

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