The UA error on Daikin RXB12BXVJU indicates a communication failure between indoor and outdoor units. First, verify all wiring connections, especially the communication cable, are secure and correctly installed.

Transmission error between other indoor and outdoor units · Defective electronic expansion valve of other indoor unit · Defective indoor unit PCB of other indoor unit · Improper connection of transmission wiring between · indoor and outdoor unit · k k k · k k · UA ·

April 2, 2026 - UA – Combination error of indoor/BS/outdoor unit, setting error of PCB at site – There is an incorrect combination of indoor, BS or outdoor units (the wrong quantity or models, for example).

Error Code Search offers information on the cause of the malfunction and the status of your air conditioner by entering the error code. Error Code Search List of Error Codes(0.1MB) Please refer to "How to Check Error Codes" for step-by-step instruction to check the error codes.

Daikin Trouble Shooting Guide · Past & Current Models · No. Code · No. Code · No. Code · 1 · 00 · 11 · E7 · 21 · UA · 2 · U4 · 12 · C7 · 22 · A5 · 3 · F3 · 13 · H8 · 23 · J9 · 4 · E6 · 14 · J8 · 24 · E8 · 5 · L5 · 15 · A3 · 25 · P4 ·

March 12, 2025 - UA – Compressor drive error · These codes can indicate various issues ranging from minor sensor faults to more serious problems requiring professional repair. If you encounter any of these error codes, it’s advisable to refer to your user ...

Check operation not executed or ... of transmission between outdoor units or outdoor storage unit · UA · Defect of indoor/outdoor power supply · UH · Malfunction of system · UJ · Malfunction of transmission (accessory ...

The remote controller can receive relevant error codes from the indoor unit. The code indication changes as shown below, and notifies with a long beep. ... Customer Support Information: WhatsApp us your query @ 9871409300. Call Our Customer Contact Centre: 011-40319300 / 1860 180 3900 or Write To Us at customerservice@daikinindia.com X

June 5, 2025 - UA – Units do not match (indoor/outdoor) 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.

Troubleshooting Troubleshooting Error code Description of error Description of diagnosis U4 − 01 Indoor-Outdoor transmission error Refer to the “U4” flow chart. UA − 13 Refrigerant type error The type of refrigerant used for the indoor ...

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July 20, 2025 - Easily identify Daikin HVAC system faults with this complete list for simple self-diagnosis & troubleshooting. Includes VRV, SkyAir, HRV systems, and more.

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

May 9, 2025 - The UA error code indicates an indoor-outdoor unit combination fault.

Answer: If your Daikin air conditioner is displaying the UF error code, this means that the unit has detected an abnormality in the operation of the outdoor fan. This is a serious error code and should be addressed as soon as possible. There are a few things that you can do to try and fix the UF...

155 UA Combination error of indoor/BS/outdoor unit (model, quantity, etc.), setting error of spare parts PCB when replaced · 156 UH Improper connection of transmission wiring between outdoor and outdoor unit outside control adaptor ... 160 UF Failure to carrey out check operation Indoor-outdoor, ...

February 6, 2019 - Fault codes U4 and U0 typically indicate communication errors between the indoor head units and the outdoor condenser. Check wiring connections for loose or damaged cables linking the two head units to the condenser.

January 22, 2026 - The list below features all the malfunction error codes for Daikin air conditioners and their potential causes.

Daikin mini split U0 usually means refrigerant shortage or insufficient gas. Learn what it means and what not to ignore.