Please refer to "How to Check Error Codes" for step-by-step instruction to check the error codes. How to Check Error Codess(0.3MB) ... Find out more in your region.

November 10, 2025 - Dealing with a malfunctioning air conditioning system can be frustrating, but resetting your Daikin air conditioner can often resolve many common issues. This updated guide for 2024 provides step-by-step instructions on resetting Daikin ducted, split-system, and multi-split system units, decode error codes, and troubleshoot common problems.

UNIT NO. 1 · 3. Press MODE · selector button · 4. Change the · upper digit · 1. Press · INSPECTION/TEST · button · 6. Change the

Step 3. Press it a third time – Wait a few minutes before pressing the on/off button again to turn the unit back on. When it turns back on, you should notice that all error codes have been cleared, and you can now use the remote freely again. On some Daikin remotes, there’s a small reset button located near the bottom of the remote.

August 16, 2025 - This waiting period is crucial for a complete reset. Restore Power: Flip the circuit breaker back to the “ON” position. Turn on any outdoor disconnect switches you may have turned off. Monitor the Unit: Observe your Daikin heat pump. The error code should now be gone from the display.

Error Code Search offers information on the cause of the malfunction and the status of your air conditioner by entering the error code.

6 days ago - Quick Answer: The most common Daikin ... HJ-09 can be resolved by repressurising the system. A reset is worth attempting for U4 and 8A codes in appropriate conditions....

March 11, 2024 - To reset a Daikin error code, you can unplug the air conditioner from the power source or use the remote control to reset the AC. ... Several factors could cause your Daikin air conditioner to not cool properly, including dirty filters, refrigerant ...

June 5, 2025 - You can find all these in a full Daikin error code list, but these are the most common. Let’s look at some common errors and how you might fix them: Turn off the power. Wait a few minutes and turn it back on. If the error stays, you may need to replace the control board. Clean the water drain tray and pipe. Make sure water is flowing out.

Complete Daikin error code list for mini-splits, VRV systems, and air conditioners. Find meanings, causes, and troubleshooting solutions for all Daikin fault codes.

September 14, 2023 - There should be a reset button on both the inside and outside portion of the AC unit. The inside reset button looks like a small red switch on the front of the unit. You can also find a reset button on the outside, which is ideal for use to ...

March 26, 2026 - On the other hand, the outdoor unit reset button is best for resetting the air conditioner after a power outage. You can reset your Daikin error code by unplugging the air conditioner from the power socket.

January 5, 2026 - This can sometimes reset the system and clear minor errors. Inspect Wiring Connections: Check all the wiring connections to ensure they are secure and not damaged. Loose or corroded connections can cause a variety of problems. Consult the User Manual: Your Daikin AC’s user manual is a valuable resource for troubleshooting information.

July 20, 2025 - Improper connection of transmission wiring between indoor- outdoor units and outdoor-outdoor units Defect of indoor and outdoor unit PCB (RA: Mismatching indoor and outdoor units, Defect of voltage, Freeze protection in other indoor unit ...

April 8, 2025 - Learn how to reset your Daikin thermostat with our expert guide. Fix errors, reconnect Wi-Fi, and restore factory settings for seamless HVAC performance.

(2) With the air conditioner in non-operation, press and hold the filter cleaning indicator (LED) reset button for about 2 seconds. Did this solve your problem? If not, please contact your nearest Daikin representative. The outdoor unit discharges water or steam.

June 7, 2025 - You can try resetting your air conditioning by turning off the power on your outdoor unit and on your switchboard and waiting for a few minutes before turning it back on. To restart your Daikin remote, follow these steps:

March 5, 2025 - Press and hold the ON/OFF button for five seconds. Wait for the screen to go blank, then release the button. Turn the system back on and reconfigure your settings if necessary. If your Daikin air conditioner is still not functioning correctly ...

Not certain what the flashing code on equipment means? Parts Town is here to help with some tips for Daikin air conditioner fault code troubleshooting.

March 25, 2025 - Solution: Users can find error code meanings by referring to the Daikin One Thermostat Manual. Error codes become fixable when users perform a reset of the system.