Daikin Mini Split Error Code E6: How to Fix It

Medium 30 minutes to 1 hour (diagnosis only) Medium Severity Verified June 2026
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Error Code
E6
Brand
Daikin
Product Type
mini_split
Severity
Medium
DIY Difficulty
Medium
Estimated Fix Time
30 minutes to 1 hour (diagnosis only)
Error code E6 on your Daikin mini split indicates a compressor over current condition, meaning the compressor is drawing too much electrical current. This can be caused by electrical issues, a faulty capacitor, or a failing compressor. Follow these steps to diagnose and resolve the problem.
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Tools You'll Need

How to Fix Error Code E6

  1. Turn Off Power and Safety Check

    High voltage can cause serious injury or death. Always verify power is off before touching any electrical components.

  2. Check Electrical Connections

  3. Measure Supply Voltage

  4. Test the Run Capacitor

    Capacitors can store dangerous charge even after power is off. Discharge safely.

  5. Measure Compressor Winding Resistance

  6. Check for Refrigerant Issues

    Refrigerant handling requires EPA certification. Contact a professional.

Parts You May Need

Run capacitor (microfarad rating matches original)
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Compressor (if faulty)
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Run capacitor (microfarad rating matches original)
Check Price on Amazon
Compressor (if faulty)
Check Price on Amazon
Run capacitor (microfarad rating matches original)
Check Price on Amazon
Compressor (if faulty)
Check Price on Amazon
Run capacitor (microfarad rating matches original)
Check Price on Amazon
Compressor (if faulty)
Check Price on Amazon
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When to Call a Professional

If you find a faulty compressor, suspect refrigerant issues, or are uncomfortable working with high voltage, call a licensed HVAC technician. Compressor replacement and refrigerant work require specialized tools and certification.

Frequently Asked Questions

Can I reset Daikin error code E6?
Yes, after fixing the underlying issue, turn off the system at the breaker for 5-10 minutes, then turn it back on. If the problem is resolved, the error code should clear.
Is error E6 serious?
Yes, it indicates an electrical or mechanical problem that can damage the compressor if ignored. Address it promptly to avoid costly repairs.
Why does my Daikin mini split show E6 after a power outage?
A power surge or voltage fluctuation can trigger the over current protection. Try resetting the unit. If the error returns, check voltage and electrical connections.
Can a dirty condenser coil cause error E6?
Indirectly. Dirty coils can cause high head pressure, making the compressor work harder and draw more current. Clean the coils with a soft brush or low-pressure water.
How much does it cost to fix error E6?
It depends. Capacitor replacement is $50-$150. Compressor replacement can cost $500-$1500. Diagnostic fees vary, typically $75-$150.

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