Daikin | Packaged

Error Code JA

Troubleshooting guide for the Daikin Packaged system fault JA.

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 high pressure sensor

Potential Causes & Solutions

  • Defective connector contact.
  • Connection of low pressure sensor in mistake for high pressure sensor.
  • Defective high pressure sensor.
  • Defective outdoor unit PCB.

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