Daikin Mini Split Error Code F8: How to Fix It

Q: Can I reset Daikin error code F8 myself?

Yes, after fixing the root cause, turn off the system at the breaker for 5 minutes, then turn it back on. If the issue is resolved, the error will clear. If it returns, further diagnosis is needed.

Q: What causes high compressor temperature on Daikin mini split?

Common causes include dirty condenser coils, blocked airflow (dirty filters), low refrigerant charge, or a faulty thermal sensor.

Q: Is it safe to use my Daikin AC with error F8?

No, continuing to operate can damage the compressor. Turn off the system and troubleshoot immediately.

Q: Do I need a new compressor for error code F8?

Not always. Often the issue is minor (dirty coils or sensor). If the compressor is locked or has an internal short, replacement may be needed.

Q: How much does it cost to fix Daikin error code F8?

DIY cost is minimal (cleaning supplies). Professional repair cost ranges from $150 for sensor replacement to $500 or more for refrigerant recharge or compressor repair.

Abstract

Error code F8 on your Daikin mini split indicates that the compressor temperature has risen too high. This can be caused by a dirty condenser coil, low refrigerant charge, or a faulty compressor thermal sensor. Follow these steps to diagnose and resolve the issue safely.