Daikin Mini Split Error Code FC: How to Fix It
Medium 1-2 hours Medium Severity
Verified June 2026
- Error Code
- FC
- Brand
- Daikin
- Product Type
- mini_split
- Severity
- Medium
- DIY Difficulty
- Medium
- Estimated Fix Time
- 1-2 hours
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Tools You'll Need
- Multimeter
- Manifold gauge set
- Screwdriver set
- Safety gloves and goggles
How to Fix Error Code FC
-
Safety First: Power Off the System
High voltage inside the unit. Always disconnect power before servicing. -
Check the Discharge Pressure Sensor Connector
-
Visually Inspect Wiring
-
Test the Pressure Sensor with a Multimeter
-
Check Refrigerant Levels
Refrigerant recovery requires EPA certification in some regions. Call a professional if you are not certified. -
Restore Power and Test
Monitor for unusual sounds or recurring error codes.
Parts You May Need
Discharge pressure sensor
Check Price on Amazon
Discharge pressure sensor
Check Price on Amazon
Discharge pressure sensor
Check Price on Amazon
Discharge pressure sensor
Check Price on Amazon
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When to Call a Professional
If the sensor tests good and refrigerant levels are correct, the issue may be with the main control board. Also, if you are not comfortable handling high voltage or refrigerant, call a licensed HVAC technician.Frequently Asked Questions
Can I run my Daikin mini split with error code FC?
No. The system may shut down to protect the compressor. Running it could cause further damage. Fix the issue before restarting.
Is error code FC the same as discharge pressure sensor failure?
Yes, FC indicates the discharge pressure sensor has failed or the pressure reading is out of range.
How much does it cost to replace the discharge pressure sensor?
The sensor part typically costs $20-$50, but labor for professional replacement can range from $100-$250.
Will error code FC clear itself?
No, the error code will remain until the underlying issue is resolved and the system is reset (turn off power for a few minutes then on).