Daikin Mini Split Error Code EH: How to Fix It

Medium 30-60 minutes Medium Severity Verified June 2026
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Error Code
EH
Brand
Daikin
Product Type
mini_split
Severity
Medium
DIY Difficulty
Medium
Estimated Fix Time
30-60 minutes
Error code EH on a Daikin mini split indicates a fault with the DC fan motor in the indoor unit. This can prevent the fan from spinning or cause erratic operation, affecting cooling and heating. The issue may be due to a faulty motor, loose wiring, or a control board problem.
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Tools You'll Need

How to Fix Error Code EH

  1. Turn Off Power and Inspect the Fan

    High-voltage capacitors can hold a dangerous charge even after power is off. If unsure, consult a professional.

  2. Check Wiring Connections

  3. Test the Fan Motor with a Multimeter

    Ensure power is off before testing. Follow safety precautions when handling electrical components.

  4. Replace the DC Fan Motor (if faulty)

    Use only a genuine or compatible OEM part. Incorrect motor can cause further damage.

  5. Check the Control Board

    Board replacement involves high-voltage areas. If not experienced, call a professional.

Parts You May Need

DC Fan Motor
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Indoor Control Board
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DC Fan Motor
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Indoor Control Board
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DC Fan Motor
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Indoor Control Board
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DC Fan Motor
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Indoor Control Board
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When to Call a Professional

If the fan motor tests good and the control board has no visible damage, or if you are uncomfortable working with live electrical components, contact a qualified HVAC technician.

Frequently Asked Questions

Can I reset Daikin error code EH?
Turning off the unit and circuit breaker for 5-10 minutes may clear a temporary fault. However, if the error returns, the underlying issue (fan motor or board) must be fixed.
What causes Daikin DC fan motor fault?
Common causes include a seized or failed fan motor, loose wiring, a faulty control board, or debris blocking the fan blade.
How much does it cost to fix Daikin error EH?
DIY replacement of a DC fan motor costs $50-$150 for the part. Professional repair including labor and diagnosis can range from $150 to $400.
Is Daikin error EH serious?
It is a medium-severity error. The system will stop cooling/heating until fixed. Ignoring it could lead to compressor damage if the fan doesn't operate.
Can a dirty air filter cause error EH?
A clogged filter can put extra strain on the fan motor but rarely triggers error EH directly. Clean filters are always recommended for proper operation.

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