What It Means
System No.
Daikin Chiller
Daikin Chiller Error Code 70
Troubleshooting guide for the Daikin Chiller system fault 70.
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Possible Causes
- Shortage of refrigerant amount.
- Defective connector contact.
- Leakage of four way valve.
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 Compressor overheat
All Recorded Causes
Shortage of refrigerant amount Defective connector contact Leakage of four way valve
Verify Before Replacing Parts
- Confirm the exact Daikin model family and chiller context before acting on a generic code description.
- Verify airflow first, then confirm operating pressures and temperature relationship before adjusting charge, since shortage of refrigerant amount.
- Look for restrictions, iced coils, or dirty heat-transfer surfaces that can mimic a charge problem, and separately confirm defective connector contact.
- After the correction, run the system long enough to confirm the chiller fault does not return under normal load.
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