Daikin | Chiller

Error Code L4

Troubleshooting guide for the Daikin Chiller system fault L4.

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 inverter radiation fin temperature rise

Potential Causes & Solutions

  • Fin temperature rise due to short circuit.
  • Defective fin thermistor.

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