Daikin AC Error Codes (Troubleshooting Guide)

Daikin Industries Ltd. is a Japanese multinational air conducting company with headquarters in Osaka. Manufacturing a wide range of appliances the company runs operations in Japan, Australia, Chain, India, Europe, the United States, the Middle East, Africa, Latin America, and Southeast Asia. They are the inventors of the VRF (variable refrigerant flow) air conditioner but failed to the trademark, which is why they market their systems as the VRV (variable refrigerant volume).

Founded in 1924, the corporation made headway through the world, taking a slower pace than others. It was not until 2004, that the company entered the North American air conditioning market. From there it took a few years to start offering residential, commercial, and industrial air conditioning units.

To help you out we have listed down some of the most common error codes and troubleshooting for Daikin. Offering consumers a chance to understand the issue at hand before they make a move. We suggest you start by noting down the error code and match it using the list below. Once you have the error code you can easily work your way to the fix, or hire a professional to get it done right the first time around.

Split AC Codes

Led On Outdoor Unit PCB

L Series AC Codes

Multi-Split Type AC Codes

Daikin’s multi-split type air conditioning systems offer superior performance, energy-efficiency, and comfort in stylish solutions conforming to all interior spaces and lifestyles. An extensive product lineup utilizes Daikin technology for lower costs and environmental impact. Advanced inverter and heat pump technologies achieve greater efficiency and energy-savings at lower costs. A broad array of models allows the perfect match of style and performance to any interior space.

Daikin VRV IV (4)

The following will be displayed on the screen when an error (or a warning) occurs during operation. Check the error code and take the corrective action specified for the particular model. If unit stops due to an error, the operation indicating LED on the signal receiving part of indoor unit blinks. The error code can be determined by following the procedure described below. (The error code is displayed when an operation error has occurred. In normal condition, the error code of the last problem is displayed.)

Daikin VRV III (3)

If operation stops due to malfunction, the remote control operation LED blinks, and malfunction code is displayed. (Even if stop operation is carried out, malfunction contents are displayed when the inspection mode is entered.)

1. Pressing the INSPECTION/TEST button will blink the check indication.

2. While in check mode, pressing and holding the ON/OFF button for a period of five seconds or more will clear the failure history indication shown above.

Troubleshooting

The following incidents do not indicate a malfunctioning air conditioner and have explanations. The air conditioner can continue to operate.

Case: The outdoor unit emits water or steam.

Explanation:

• In HEAT operation; The frost on the outdoor unit melts into water or steam when the air conditioner is in defrost operation.
• In COOL or DRY operation; Moisture in the air condenses into water on the cool surface of outdoor unit piping and drips.

Case: Mist comes out of the indoor unit.

Explanation:

• This happens when the air in the room is cooled into mist by the cold airflow during COOL operation.
• This is because the air in the room is cooled by the heat exchanger and becomes mist during defrost operation.

Case: The indoor unit gives out odor

Explanation:

• This happens when smells of the room, furniture, or cigarettes are absorbed into the unit and discharged with the airflow. If this happens, it is recommended to have the indoor unit washed by a technician. Consult the service shop where you purchased the air conditioner.

Case: The outdoor fan rotates while the air conditioner is not in operation.

Explanation:

• After operation is stopped; The outdoor fan continues rotating for another 60 seconds for system protection.
• While the air conditioner is not in operation; When the outdoor temperature is very high, the outdoor fan starts rotating for system protection.

Case: Possible sounds.

Explanation:

• Flowing water; Generated because the refrigerant in the air conditioner is flowing. This is a pumping sound of the water in the air conditioner and heard when the water is pumped out from the air conditioner in cooling or drying operation. The refrigerant flows in the air conditioner even if the air conditioner is not working when the indoor units in other rooms are in operation.
• Blowing; Generated when the flow of the refrigerant in the air conditioner is switched over
• Pinging; Generated when the size of the air conditioner slightly expands or shrinks as a result of temperature changes.

Case:The air conditioner does not operate

Check:

• Is a breaker off or a fuse blown?
• Is there a power failure?
• Are batteries set in the remote controller?
• Is the timer setting correct?

Case: Cooling (Heating) effect is poor

Check:

• Are the air filters clean?
• Is there anything to block the air inlet or the outlet of the indoor and the outdoor units?
• Is the temperature setting appropriate?
• Are the windows and doors closed?
• Are the airflow rate and the airflow direction set appropriately?

Case: Operation stopped suddenly

Check:

• Are the air filters clean?
• Is there anything to block the air inlet or the outlet of the indoor and the outdoor units?
• Clean the air filters or take all obstacles away and turn the breaker off. Then turn it on again and try operating the air conditioner with the remote controller. If the lamp still flashes, call the service shop where you purchased the air conditioner.
• Are operation modes all the same for indoor units connected to outdoor units in the multi system?

Manuals PDF

VRV 3 Service Manual

Split AC Manual

L-Series AC Manual

VRV IV Service Manual

Simple Self-Diagnosis by Malfunction Code

References

daikin.com

daikin.com.au

daikinac.com/content/assets/DOC/ServiceManuals

ft.com/content/a677c087-ef43-4100-9705-27e131846625

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Danny Reese

HVAC Expert at acerrorcode.com

Regarding error and fault codes, we believe sharing knowledge is the best way to help everyone. That is why we established ACErrorCode.com, to give you every bit of info you need as a customer. HVAC Expert Contact: dannyreese@acerrorcode.com Call: 916-954-2677

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