Daikin | VRV

Error Code EC

Troubleshooting guide for the Daikin VRV system fault EC.

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 entering water temperature

Potential Causes & Solutions

  • Cooling water temperature abnormality.
  • Defective outdoor unit PCB.
  • Defective thermistor.

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