Daikin | Fan Coil

Error Code AH

Troubleshooting guide for the Daikin Fan Coil system fault AH.

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 dust collector of air cleaner

Potential Causes & Solutions

  • Defect of dust collecting element.
  • Stained insulator part.
  • Defect of high voltage power supply unit.
  • Defect of indoor unit PCB.

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