Daikin Mini Split Error Code A8: How to Fix It

Q: What does error code A8 mean on a Daikin mini split?

Error A8 indicates input overcurrent, meaning the unit is drawing too much electrical current. Common causes include a bad capacitor, compressor failure, or power supply issues.

Q: Can I reset a Daikin error code A8?

Yes, you can reset the error by turning off the unit and the circuit breaker for 5 minutes, then turning it back on. However, if the underlying issue isn't fixed, the error will return.

Q: Is a bad capacitor the only cause of error A8?

No, while a faulty capacitor is common, other causes include a failing compressor, locked fan motor, or incorrect power supply. Each should be checked systematically.

Q: How much does it cost to fix a Daikin error A8?

DIY capacitor replacement costs $15-$50. Professional repair for compressor issues can range from $500 to $1500 depending on the model and labor.

Q: Can I run my Daikin AC with error A8?

No, running the unit with an overcurrent condition can damage the compressor or circuit board. Troubleshoot and fix the issue before operating.

Abstract

Error code A8 on your Daikin mini split indicates input overcurrent, meaning the system is drawing too much current. This can be caused by a faulty capacitor, compressor issues, or power supply problems. Follow these steps to diagnose and fix the issue safely.