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How to Reset an LG Mini-Split in 2026

by Dua Jones April 24, 2026

Resetting an LG mini-split clears error codes and temporary faults that can leave the unit locked out or unresponsive. LG offers three reset methods: a circuit breaker reset (most effective for clearing error codes), a remote control reset, and a reset through the LG ThinQ app for WiFi-connected models. This guide covers all three with exact steps.

Method 1: Circuit Breaker Reset (Recommended)

Step 1: Turn the unit off with the remote (press the ON/OFF button).
Step 2: Go to your electrical panel and switch off the dedicated breaker for the LG mini-split.
Step 3: Wait 30 seconds. For persistent error codes, wait 5 full minutes to allow full discharge of the control board capacitors.
Step 4: Switch the breaker back on.
Step 5: Wait 3 full minutes before operating. LG compressors have a built-in short-cycle protection timer after any power interruption. Pressing the ON button during this window resets the timer — do not press anything for 3 minutes.
Step 6: Turn on with the remote and check for normal operation.

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Method 2: Remote Control Reset

The LG remote has a small RESET pinhole button, typically on the back panel or bottom edge.

Step 1: Use a thin pin, paperclip, or pen tip to press the recessed RESET button for 3 seconds.
Step 2: The remote display will blank and restart with default settings.
Step 3: Re-enter your preferred temperature, mode, and fan speed settings.

Note: This resets the remote's memory only — not the indoor unit's error log. Use the breaker method to clear fault codes from the unit itself.

Method 3: LG ThinQ App Reset

For LG mini-splits connected to the LG ThinQ smart home app:

Step 1: Open the LG ThinQ app and navigate to your mini-split device.
Step 2: Tap the settings gear icon → Device Settings → Factory Reset (or Restart Device, depending on your model).
Step 3: Confirm the reset. The unit will reboot and reconnect to WiFi.

Reset Method Comparison

Method	Clears Error Codes?	Clears Schedule?	Best For
Breaker reset	Yes	Yes	Error codes, unresponsive unit, fault clearing
Remote reset button	No	Yes	Remote out of sync or frozen display
LG ThinQ app reset	Partially	Yes	WiFi connectivity issues, app sync problems

Frequently Asked Questions

My LG mini-split won't start after a reset — what's wrong?

Almost always the 3-minute compressor protection timer. After any power interruption, LG systems delay compressor startup by 3 minutes to prevent short-cycling damage. Do not press any buttons — wait the full 3 minutes. If the unit still won't start after 3 minutes, check the display for an active error code.

How many times can I reset my LG mini-split?

There is no limit to how many times you can perform a breaker reset. However, if the same error code returns repeatedly after resetting, continuing to reset without addressing the root cause is not a solution. A recurring code indicates a real hardware fault that requires technician diagnosis.