Daikin Chiller

Daikin Chiller Error Code H6

Troubleshooting guide for the Daikin Chiller system fault H6.

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What It Means

Malfunction of position detection sensor.

Possible Causes

  • Faulty contact of compress or cable.
  • Defective compressor.
  • Defective outdoor unit PCB.

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

Malfunction of position detection sensor

All Recorded Causes

Faulty contact of compress or cable Defective compressor Defective outdoor unit PCB

Verify Before Replacing Parts

  1. Confirm the exact Daikin model family and chiller context before acting on a generic code description.
  2. Verify the sensor or thermistor reading against the expected range for the current operating condition, keeping in mind that faulty contact of compress or cable.
  3. Check the sensor harness and board connection before condemning the sensor itself; on Daikin units this is also where you'd confirm defective compressor.
  4. After the correction, run the system long enough to confirm the chiller fault does not return under normal load.

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