Daikin Chiller

Daikin Chiller Error Code 83

Troubleshooting guide for the Daikin Chiller system fault 83.

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What It Means

System No.

Possible Causes

  • Defective connector contact.
  • Defective refrigerant thermistor.

Not sure which one it is — or if it's none of these? Try ACLogics today.

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.
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Full Diagnosis

System No. 2 Malfunction of refrigerant thermistor

All Recorded Causes

Defective connector contact Defective refrigerant thermistor

Verify Before Replacing Parts

  1. Confirm the exact Daikin model family and chiller context before acting on a generic code description.
  2. Verify airflow first, then confirm operating pressures and temperature relationship before adjusting charge, since defective connector contact.
  3. Look for restrictions, iced coils, or dirty heat-transfer surfaces that can mimic a charge problem, and separately confirm defective refrigerant thermistor.
  4. After the correction, run the system long enough to confirm the chiller fault does not return under normal load.

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