Fujitsu Mini-Split Error Code 35: How to Fix It

Q: What does Fujitsu error code 35 mean?

Error code 35 indicates a fault with the outdoor unit's reversing valve, which controls refrigerant flow for heating and cooling.

Q: Can I still use my mini-split with error code 35?

You may still be able to operate in one mode (heating or cooling), but the system will not switch modes efficiently. It's best to fix the issue promptly to avoid further damage.

Q: How much does it cost to fix a reversing valve?

DIY repair cost is around $20-$50 for a solenoid coil. Professional repair, including valve replacement, can range from $400 to $1,000.

Q: Is error code 35 serious?

It is a medium-severity error. If left unresolved, it can lead to inefficient operation or complete system failure.

Q: Can I replace the reversing valve myself?

Replacing the reversing valve involves brazing and refrigerant handling, which should be done by a certified HVAC professional.

Abstract

Error code 35 on your Fujitsu mini-split indicates a fault with the outdoor unit's reversing valve. This valve controls the refrigerant flow for heating and cooling modes. A fault can prevent your system from switching between heat and cool, or cause it to run inefficiently. Follow these steps to diagnose and resolve the issue.