Daikin | Heat Reclaim Ventilator

Error Code U8

Troubleshooting guide for the Daikin Heat Reclaim Ventilator system fault U8.

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 transmission between remote controllers

Potential Causes & Solutions

  • Transmission error between main and sub remote controller.
  • Connection between sub remote controllers.
  • Defective remote controller PCB.

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