Blue Star AC Error Codes

Complete list of Blue Star air conditioner error codes with meanings and solutions

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Blue Star Error Code List

CodeMeaningSeverityFix
E1Room temperature sensor faultMediumReplace room temperature sensor
E2Evaporator temperature sensor faultMediumCheck evaporator sensor
E3Condenser temperature sensor faultMediumCheck condenser temperature sensor
E4Discharge temperature sensor faultMediumCheck discharge sensor
E5Communication error between unitsHighCheck wiring connections
E6EEPROM errorHighReset or replace indoor PCB
E7Indoor fan motor faultHighCheck fan motor and connections
F1Outdoor unit faultHighCheck outdoor unit components
F3Compressor overcurrentCriticalCheck compressor and power
H5IPM module protectionCriticalCheck inverter power module
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Understanding Blue Star AC Error Codes

Blue Star air conditioners display error codes when they detect problems with the system. These codes help identify issues quickly, saving time and money on diagnostics. Understanding these codes can help you determine whether you can fix the issue yourself or need to call a professional.

Severity Levels Explained

  • Critical: Serious issues that require immediate professional attention. Do not operate the unit.
  • High: Significant problems that should be addressed soon. Unit may work intermittently.
  • Medium: Issues that affect performance but aren't urgent. Can often be fixed with basic troubleshooting.
  • Low: Minor issues or informational codes. Usually resolved with simple actions like filter cleaning.

Basic Troubleshooting Steps

  1. Note down the error code displayed
  2. Turn off the AC and unplug it
  3. Wait 5 minutes before restarting
  4. If the error persists, check the meaning above
  5. For critical errors, contact a certified Blue Star technician

When to Call a Professional

While some error codes indicate simple issues like dirty filters, others point to serious problems requiring professional repair. Always call a technician for:

  • Compressor-related errors
  • Electrical or high-voltage issues
  • Refrigerant leaks or pressure problems
  • Errors that don't clear after reset
  • Any error you're not comfortable diagnosing

Frequently Asked Questions

How do I reset my Blue Star AC after an error?

To reset your Blue Star AC: 1) Turn off the unit using the remote or power button. 2) Unplug it from the power outlet. 3) Wait 2-3 minutes. 4) Plug it back in and turn on. If the error persists, the issue may require professional service.

What do Blue Star AC error codes mean?

Blue Star AC error codes indicate specific issues with your unit. Common categories include sensor errors, communication problems, compressor issues, and electrical faults. Use the table above to identify your specific error code.

When should I call a technician for my Blue Star AC?

Call a technician for: 1) Critical errors related to compressor or electrical issues. 2) Errors that persist after resetting the unit. 3) Any error involving refrigerant leaks or high-voltage components. Never attempt to fix critical issues yourself.