Daikin | Split/ Multi Split

Error Code UA

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

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

Defect of indoor/outdoor power supply

Potential Causes & Solutions

  • Wrong model connections.
  • Improper power supply.
  • Wrong PCB connected.
  • Defective PCB.

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