Warning: Disconnect power before servicing.
ErrBase

Daikin Mini-Split Won't Turn On: Power and Startup Fixes

Quick Answer

When a Daikin mini-split will not turn on at all, the most common cause is a tripped breaker or blown fuse - not a complex component failure. Daikin residential mini-splits receive all power at the outdoor unit, which then feeds the indoor unit through the interconnecting cable. This means a tripped outdoor breaker kills both units simultaneously.

When a Daikin mini-split will not turn on at all, the most common cause is a tripped breaker or blown fuse - not a complex component failure. Daikin residential mini-splits receive all power at the outdoor unit, which then feeds the indoor unit through the interconnecting cable. This means a tripped outdoor breaker kills both units simultaneously. Check the outdoor unit breaker and the disconnect box first. If breakers are fine, check for a blown fuse on the outdoor unit control board. If power is confirmed but the unit still will not start, try the emergency operation button on the indoor unit.

DaikinMinisplitSeverity: high80% DIY Success
Time to Fix
5–60 min
Difficulty
beginner
Parts Cost
$2 – $60
Tools Needed
Flashlight, Multimeter (for fuse check)

What Does the WONT-TURN-ON Code Mean?

Check outdoor breaker and disconnect first. Daikin powers indoor from outdoor. If breakers OK, check board fuse. Try emergency button on indoor unit.

Most Likely Causes

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

Outdoor unit breaker tripped40%
Disconnect box switch off24%
Outdoor board fuse blown14%
Timer delay set on remote12%
Remote batteries dead10%

Symptoms You May Notice

  • No display on indoor unit
  • No response to remote
  • No sounds from either unit
  • No LED lights on indoor unit
  • Outdoor unit completely silent

Can you reset a Daikin minisplit to clear the WONT-TURN-ON code?

Breaker off 30 seconds. On. Wait 3 minutes. Try remote. If no response, try emergency button.

Tools Required for Diagnosis

FlashlightMultimeter (for fuse check)Small screwdriver (for emergency button)

Diagnostic Checklist

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

1

Check the circuit breaker panel for the mini-split breaker

Check the circuit breaker panel for the mini-split breaker. Also check the disconnect box near the outdoor unit (pull-out handle or switch). Ensure both are in the ON position.

2

Replace the remote control batteries with fresh ones

3

Open the indoor unit front panel

Replacement Parts

If your diagnostic testing proves the component has failed, you will need a replacement. We recommend OEM parts over aftermarket for water-handling components.

Part Name
Daikin Remote ControlBRC4C65 · $30–$60
Outdoor board fuseVarious · $2–$5
AAA batteries for remoteN/A · $3–$5

Repair vs. Replace Calculator

Appliance Age (Years)7 Yrs
Labor Approach
Our Verdict
REPAIR
Estimated Cost: $31 (Parts) vs $5500 (New Machine)

Frequently Asked Questions

Where is the Daikin emergency start button?
Open the front panel of the indoor unit by lifting the bottom edge. The emergency button is usually behind a small cover on the right side of the unit. It is a small recessed button that you press with a pen or your finger. One press starts in auto mode, another press stops.
My Daikin breaker keeps tripping. Why?
A repeatedly tripping breaker indicates a short circuit or ground fault in the system. The most common causes are a failing compressor (winding insulation breakdown) or water ingress to the outdoor unit wiring. Do not keep resetting the breaker - call an HVAC technician and electrician.
Can I use a universal remote for my Daikin?
Daikin uses a proprietary infrared protocol, so standard universal remotes do not work. You need a Daikin-compatible universal remote (like the BRC4C65) or the exact replacement for your model. Some third-party Daikin-compatible remotes are available for $15-30 online.

Related Daikin Minisplit Error Codes

Code: HUBDaikin Mini-Split Error Codes: Complete GuideCode: NOT-WORKINGDaikin Mini-Split Not WorkingCode: RESETHow to Reset a Daikin Mini-Split

Models Known to Experience WONT-TURN-ON Errors

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

FTXS09LVJU, FTXS12LVJU, FTXM15QVJU, FTXM18QVJU, FTXM24QVJU

Last verified for technical accuracy on March 15, 2026