Warning: Disconnect power before servicing.
ErrBase

Daikin Mini-Split Blinking Green Light: What It Means

Quick Answer

The blinking green light on a Daikin mini-split indoor unit is the operation indicator LED. A fast, steady blink at approximately 2 times per second means the unit is running and communicating normally - this is not an error. A slow blink at about once every 2 seconds means the unit is in standby mode waiting for a command from the remote.

The blinking green light on a Daikin mini-split indoor unit is the operation indicator LED. A fast, steady blink at approximately 2 times per second means the unit is running and communicating normally - this is not an error. A slow blink at about once every 2 seconds means the unit is in standby mode waiting for a command from the remote. If the green light is blinking in a pattern of counted flashes with pauses between groups (for example, 3 blinks, pause, 3 blinks, pause), this indicates an error code on Daikin models without a numeric LCD display. Count the number of blinks in each group to determine the error number.

DaikinMinisplitSeverity: low90% DIY Success
Time to Fix
5–30 min
Difficulty
beginner
Parts Cost
—
Tools Needed
Flashlight, Stopwatch or phone timer

What Does the GREEN-LIGHT Code Mean?

Fast green blink (2Hz) = running normally. Slow blink (0.5Hz) = standby. Counted blink groups with pauses = error code on non-display models.

Most Likely Causes

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

Normal operation (fast blink)40%
Standby mode (slow blink)24%
Error code on non-display models (counted blinks)14%
Power board issue if no blink at all12%
Communication fault showing as erratic blinking10%

Symptoms You May Notice

  • Green light blinking fast continuously
  • Green light blinking slowly
  • Green light blinking in counted groups
  • Green light not blinking at all
  • Green light blinking erratically

Can you reset a Daikin minisplit to clear the GREEN-LIGHT code?

Turn breaker off 30 seconds, then on. Green light will show the current status after the 3-minute initialization period.

Tools Required for Diagnosis

FlashlightStopwatch or phone timerPhone camera (to record blink pattern)

Diagnostic Checklist

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

1

Observe the green light blink pattern for 30 seconds

Observe the green light blink pattern for 30 seconds. Determine if it is fast continuous (about 2 per second), slow continuous (about 1 every 2 seconds), or grouped flashes with pauses.

2

If counted blinks

3

If the green light is completely off with the breaker on

Frequently Asked Questions

Is a blinking green light normal on a Daikin?
Yes, a fast blinking green light (about 2 times per second) is completely normal and means your unit is running correctly. A slow blink means the unit is in standby mode. Only counted blink groups with pauses indicate an error.
My green light stopped blinking entirely. Is the unit broken?
If the green light is completely off with the breaker on, the indoor unit is not receiving power. Check the breaker first, then inspect the wiring connections at the indoor unit. A completely dead PCB (no lights at all) may indicate a power board failure.
Can I turn off the green blinking light?
On some Daikin models, holding the Cancel button for 10 seconds toggles the LED display on and off. This is a comfort feature for bedrooms where the blinking light is distracting. The unit continues to operate normally with the LED off.

Related Daikin Minisplit Error Codes

Code: HUBDaikin Mini-Split Error Codes: Complete GuideCode: ORANGE-LIGHTDaikin Mini-Split Blinking Orange LightCode: RED-LIGHTDaikin Mini-Split Blinking Red Light

Models Known to Experience GREEN-LIGHT Errors

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

FTXS09LVJU, FTXS12LVJU, FTXS15LVJU, FTXM09QVJU, FTXM12QVJU, FTXM15QVJU

Last verified for technical accuracy on March 15, 2026