Daikin SkyAir

Daikin SkyAir Error Code PA

Troubleshooting guide for the Daikin SkyAir system fault PA.

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What It Means

Refrigerant cylinder during automatic refrigerant charging.

Possible Causes

  • Refrigerant cylinder of master unit is empty.

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

Refrigerant cylinder during automatic refrigerant charging

All Recorded Causes

Refrigerant cylinder of master unit is empty

Verify Before Replacing Parts

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

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