What It Means
STD compressor motor overcurrent/lock.
Daikin Packaged Unit
Daikin Packaged Unit Error Code E6
Troubleshooting guide for the Daikin Packaged Unit system fault E6.
Possible Causes
- Defective compressor.
- Defective control PCB.
- The stop valve is not opened.
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.
New to this code? Click to see why this happens
Full Diagnosis
STD compressor motor overcurrent/lock
All Recorded Causes
Defective compressor Defective control PCB The stop valve is not opened
Verify Before Replacing Parts
- Confirm the exact Daikin model family and packaged context before acting on a generic code description.
- Verify current draw, overload status, and control signal before condemning the compressor or drive, given that defective compressor.
- Look for upstream conditions such as airflow or charge issues that may be pushing the compressor into protection, and check defective control PCB.
- After the correction, run the system long enough to confirm the packaged fault does not return under normal load.
Still unsure about this fault?
ACLogics walks you through Daikin Packaged Unit diagnostics step-by-step — so you confirm the cause before swapping parts.
