Warning: Disconnect power before servicing.
ErrBase

How to Reset a Daikin Mini-Split: Every Method That Works

Quick Answer

To reset a Daikin mini-split: turn off the unit from the remote, then flip the dedicated circuit breaker off for 30 seconds and back on. Daikin mini-splits do not have a wall outlet to unplug - they run on a dedicated 240V circuit. Always note any error code on the indoor unit LED before resetting, as the code clears after power is restored.

Daikin mini-splits have three reset levels. The soft reset is pressing Cancel on the remote for 5 seconds, which clears the current error display. The hard reset is turning the circuit breaker off for 30 seconds, which power-cycles both the indoor and outdoor unit control boards and resets all safety switches. The factory reset on Daikin One+ smart thermostats is under Menu > System > Reset. For multi-zone systems, the outdoor unit must be reset separately by cycling its dedicated breaker. After any reset, wait 3 minutes before starting the system to allow the inverter board capacitors to fully discharge and recharge.

DaikinMinisplit70% DIY Success

How to Reset Your Daikin Minisplit

Soft reset: Cancel button 5 seconds. Hard reset: breaker off 30 seconds. Wait 3 minutes after any reset before restarting.

Most Likely Causes

Based on aggregated repair data, here is the probability breakdown for this error code:

Error code needs clearing after repair40%
System frozen or unresponsive24%
After power outage recovery14%
Thermostat lost communication12%
Control board needs reboot10%

Symptoms You May Notice

  • Error code on display
  • System not responding to remote
  • Indoor unit fan runs but no heating/cooling
  • After power outage unit won't start
  • Thermostat showing communication error

Tools Required for Diagnosis

Remote control (with fresh batteries)

Diagnostic Checklist

Follow these steps in order. We start with the easiest external fixes before opening up the machine.

1

Point the remote at the indoor unit and press and hold the

Point the remote at the indoor unit and press and hold the Cancel button for 5 seconds. The display should clear any error code and the unit enters standby mode.

2

Go to the electrical panel and turn off the breaker serving the

3

For Daikin One+ smart thermostat

Frequently Asked Questions

How long should I leave the breaker off for a Daikin reset?
30 seconds minimum. This ensures all capacitors on the inverter board discharge completely. Shorter intervals may not fully reset the control boards. After turning the breaker back on, wait 3 full minutes before starting the system.
Will resetting erase my Daikin settings?
A breaker reset does not erase your mode, temperature, or fan speed settings - these are stored in non-volatile memory. Only a factory reset on the Daikin One+ thermostat erases schedules and Wi-Fi configuration.
My Daikin needs resetting every few days. Is that normal?
No. Frequent resets indicate a recurring fault that is not being resolved. Enter diagnostic mode to check the error history and identify the repeating code. Address the root cause rather than continuing to reset.

Related Daikin Minisplit Error Codes

Code: HUBDaikin Mini-Split Error Codes: Complete GuideCode: TROUBLESHOOTDaikin Mini-Split Troubleshooting GuideCode: WONT-TURN-ONDaikin Mini-Split Won't Turn On

Models Known to Experience RESET Errors

This repair applies to most Daikin minisplits with this error code. Common model numbers include:

FTXS09LVJU, FTXS12LVJU, FTXS15LVJU, FTXM09QVJU, FTXM12QVJU, FTXM15QVJU, FTXM18QVJU, FTXM24QVJU

Last verified for technical accuracy on March 15, 2026