Daikin | VRV

Error Code A0

Troubleshooting guide for the Daikin VRV system fault A0.

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

External protection device activated

Potential Causes & Solutions

  • External protection device connected to the terminal strip T1-T2 of indoor unit is activated.

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