December 22, 2022 - Daikin AC Error Code = A1 Error Code Definition = Malfunction of indoor unit PCB What To Fix/Check/Replace = Defective indoor unit PCB.

April 20, 2026 - The A1 error code on a Daikin air conditioner indicates a failure of the indoor unit control board (PCB).

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.

June 5, 2025 - If your Daikin AC shows error code A1, the main board inside the indoor unit might not be working.

January 5, 2025 - You can check Daikin aircon error codes using your remote control and fix many issues yourself. For example, the A1 error code means there’s a problem with the printed circuit board (PCB), while an A3 code points to a drain issue.

November 6, 2024 - According to the error code chart provided by Daikin, A1 indicates a circuit board malfunction.

FXTQ12TAVJUAAB system may show communication errors and sensor faults causing A0-01 codes. The A0-01 error on Daikin FXTQ12TAVJUAAB indicates a communication fault between indoor and outdoor units. Check the communication wiring harness for ...

May 8, 2025 - The A1 error code signifies a malfunction in the indoor unit’s PCB (Printed Circuit Board).

Daikin Fault Codes · Indoor Fault Codes · Fault Code · Definition · Supposed Causes · Split · Skyair · VRV · Package · A0 · External protection active · External protection wired to T1-T2 active · • · • · • · A1 · Failure of indoor PCB ·

April 22, 2026 - We have a complete guide on Daikin A1 error. Water is not draining properly. ... Read our complete guide on Daikin A3 error. The indoor coil temperature is outside normal range. ... You can read out more in our Daikin A5 error code guide.

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.

April 2, 2026 - To help you find out what the cause of any potential issue could be, we’ve compiled a list of Daikin air conditioning fault codes and their descriptions. A1 – Micro-computer in PCB is not working – this is a fault that occurs either in ...

All Chiller Fan Coil Heat Reclaim ... outdoor air thermistor (Heat reclaim ventilator) 94 · Malfunction of transmission (between heat reclaim ventilator and fan unit) A1 ·...

April 14, 2026 - A1 · U4 · Related to compressor or PCB. Never ignore major error codes. Yes. Error codes may vary slightly between: Split AC · Inverter AC · VRV systems · Always refer to model manual for confirmation.

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

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

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.

May 2, 2023 - Daikin Error code u0- Shortage of refrigerant · Probable causes: Refrigerant shortage and/or refrigerant clogging (wrong piping) Defective Daikin thermistor · Defective low-pressure sensor · Defective outdoor unit’s main PCB · Probable causes: Power supply reverse phase · T- phase open phase · Faulty outdoor unit PCB (A1P) Probable causes: Abnormal/irregular power supply voltage ·

April 21, 2026 - Is your Daikin air conditioner suddenly blowing warm air and flashing a cryptic code like U0, U4, or L5 on the display? In the middle of a hot day, a malfunctioning AC is an emergency, but that flashing code is actually your system’s highly advanced built-in diagnostic tool pointing exactly to the failure. With nearly 100 distinct error codes across its alphanumeric and numeric series, Daikin systems are incredibly precise.

April 19, 2024 - E6 error code replaced indoor and outdoor boards and thermostat wire still getting code and reading 125 volts on all · Outdoor model CU-160C53XP, Indoor model CS-160E91ER, Wired wall controller model CZ-10RT33PA. The wall controller does · Outdoor a/c unit not working Model 10 acc-024-230-02, conductor relay just clicks and there is 22 volts available. ... I reside in a high-rise apartment with a Daikin A/C unit that displays "outdoor model A9P-028 indoor model FXTQ24TAVJUA Error Code A0-01."