Daikin | Packaged

Error Code AA

Troubleshooting guide for the Daikin Packaged system fault AA.

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

Heater overheat

Potential Causes & Solutions

  • 26WH is activated.

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