During use, it is inevitable that the air conditioner will be damaged. Then Daikin air conditioner error code This will help users identify the damage that their products are experiencing. If your family owns a Daikin air conditioner, do not miss the following article!
1. How to check Daikin Inverter air conditioner error with smart control
– Smart control of the air conditioner will help you quickly identify the problem caused by the cause when air conditioning abnormal operation or malfunction. By pointing the remote towards the indoor unit and then manually pressing “Cancel” within 5 seconds the controller will display an error code on the screen with a flashing signal.
– At this time, the display screen of the remote control will display “00“- This is the default display code in the program”Test Error“.
– Continue pressing the “Cancel“beat by beat (don’t hold) to cycle through the error codes until you hear a chime”Beep” then stop.
– At this time, the error code on the display screen of the Control is the error code “standard‘ that the system is suffering from.
– Through error testing inverter air conditioner Daikin with this control you will notice the errors Daikin air conditioners are having to find the right way to repair and fix.
2. Daikin air conditioner error code table
Error Daikin air conditioner are shown through the codes on the control. Below is a summary of the error codes of 1-way air conditioner and 2-way air conditioner from Daikin brand for your reference!
2.1. Error code table of Daikin inverter air conditioner unit
STT | Error code | Meaningful | Reason |
first | A0 | Fault of peripheral protection device |
– Check settings and peripheral connections. – The device is not compatible. – Faulty indoor unit board. |
2 | A1 | Board error |
– Replace the indoor unit board. |
3 | A3 | Drain system error (33H) |
– Check the float switch. – Check if the drain pipe is sloped. – Check drain pump. – Loose connection wire. – Faulty indoor unit board. |
4 | A6 | Fan motor (MF) is overloaded, damaged |
– Replace fan motor. – The connection wire between the fan motor and the indoor unit board is faulty. |
5 | A7 | Faulty vane motor |
– Check the vane motor. – Wind motor connection wire is faulty. – Faulty indoor unit board. |
6 | A9 | Daikin A9 air conditioner error code is an electronic throttle error |
– Check valve body, electronic throttle wire. – Wire connection error. – Faulty indoor unit board. |
7 | AF | Error in indoor unit drain water level |
– Check the drain pipe – Faulty optional accessory set. – Indoor unit PCB. |
8 | C4 | Error of thermistor head (R2T) in the heat exchanger |
– Check the liquid gas pipeline temperature sensor. – Faulty indoor unit board. |
9 | C5 | Failure of the temperature sensor head (R3T) of the gas pipeline |
– Check the temperature sensor of the gas pipeline. – Faulty indoor unit board. |
ten | C9 | Return air temperature sensor head (R1T) error |
– Check the return air temperature sensor. – Faulty indoor unit board. |
11 | CJ | Error of the temperature sensor on the remote |
– Error of the temperature sensor of the controller. – Controller board error |
2.2. Daikin air conditioner error code table (Outdoor unit)
STT | Error code | Meaningful | Reason |
first | E1 | Board error | – Replace the outdoor unit board. |
2 | E3 | Error due to operation of high pressure switch |
– Check for high pressure leading to high pressure switch operation. – Error of the outdoor unit. – High pressure switch error. – High pressure sensor error. – Instantaneous fault (such as due to a sudden power failure). |
3 | E4 | Error due to impact of low pressure sensor |
– Unusually low pressure (<0.07Mpa). – Low pressure sensor error. – Error of the outdoor unit. – The stop valve is not open. |
4 | E5 | The fault is caused by the inverter compressor motor |
– Wrong lock pins (U,V,W). – Inverter compressor has a power leak, is stuck, has a faulty coil. – Inverter board error. – The stop valve has not been opened. – When starting, there is a high pressure difference (>0.5Mpa). |
5 | E6 | Compressor failure is often overcurrent or stuck |
– The stop valve has not been opened. – The outdoor unit does not cool well. – Incorrect supply voltage. – Start from error. – The compressor is often damaged. – Current sensor error. |
6 | E7 | Daikin air conditioner error code E7 is an error in the outdoor unit fan motor |
– Error connecting fan and outdoor unit board. – The fan is stuck. – The outdoor unit fan motor is faulty. – The outdoor unit fan inverter board is faulty. |
7 | F3 | The discharge pipe temperature is not normal |
– The ejector tube temperature sensor connection is faulty. – The ejector tube heat sensor is faulty or in the wrong position. – Error of the outdoor unit. |
8 | H7 | The signal from the hot fan motor is not normal |
– Error of outdoor unit fan. – The fan inverter board is faulty. – The signal transmission line is faulty. |
9 | H9 | External wind temperature sensor head (R1T) error |
– Check the outdoor unit temperature sensor for error. – The outdoor unit board is faulty. |
ten | J2 | Current sensor head error |
– Check the fault current sensor. – Due to faulty outdoor unit. |
11 | J3 | Daikin air conditioner error code J3 is the error of the outgoing gas pipe heat sensor (R31T~R33T) |
– Throttle heat sensor error. – Error due to outdoor unit. – Connection error of the temperature sensor. |
twelfth | J5 | The error of the heat sensor head (R2T) of the gas pipe is about |
– Intake heat sensor error. – Error of the outdoor unit. – Connection error of the temperature sensor. |
13 | J9 | Temperature sensor error is too cold (R5T) |
– Temperature sensor error is too cold. – Error of the outdoor unit. |
14 | JA | Error in the head of the pressure sensor of the gas pipeline |
– High pressure sensor error. – Error of the outdoor unit. – Thermal sensor connection error or wrong location. |
15 | JC | Gas pipe pressure sensor head error |
– Low pressure sensor error. – Error of the outdoor unit. – Temperature sensor connection error or wrong position. |
16 | L4 | Error of inverter fin temperature rise |
– Low pressure sensor error. – Error of outdoor unit board, – Thermal sensor connection error or wrong position. |
17 | L5 | Inverter compressor abnormal |
– The inverter compressor coil is damaged. – Compressor startup error. – The inverter board is faulty. |
18 | L8 | Abnormal inverter current fault |
– Inverter compressor overloaded – Inverter board error – Compressor coil damaged (leg lock wire, electric detector …) – Compressor is faulty |
19 | L9 | Daikin air conditioner error code L9 is inverter compressor start error |
– Inverter compressor error. – Wrong wiring error (V,U,W,N). – Difference between high pressure and low pressure when starting is not guaranteed. – The stop valve has not been opened. – Inverter board error. |
20 | LC | Signal error between remote board and inverter board |
– Connection error between remote board and inverter board. – Error in outdoor unit control board. – Inverter board error. – Noise filter error. – Inverter fan error. – Incorrect fan connection. – Compressor error. – Fan motor error. |
21 | P4 | Inveter fin heat riser sensor error |
– Faulty radiator heat sensor. – Inverter board error. |
22 | PJ | Error in outdoor unit capacity setting |
– Faulty radiator fin heat sensor. – Inverter board error. |
2.3. Error code table of Daikin air conditioning system
After the table Daikin air conditioner error code With the outdoor unit and indoor unit, the following invites you to monitor the failures that come from the system.
STT | Error code | Meaningful | Reason |
first | U0 | Gas shortage warning |
– Lack of gas or blocked gas pipes (Error in pipeline construction). – Thermal sensor error (R4T, R7T). – Pressure sensor error (low pressure). – Error of the outdoor unit. |
2 | U1 | Phase reverse, phase loss |
– The power supply is out of phase. – The power supply is out of phase. – Error of the outdoor unit. |
3 | U2 | Insufficient voltage source or rapid voltage drop |
– Insufficient power supply. – Instant power failure. – Dephasing. – Inverter board error. – Error in outdoor unit control board. – Faulty wiring in main circuit. – Compressor error. – Faulty fan motor. – Signal transmission error. |
4 | U3 | Error of check operation is not performed | – Run system test again. |
5 | U4 | Daikin air conditioner error code U4 is a signal transmission error between outdoor and indoor units |
– The wire between the outdoor unit and the outdoor unit is broken, short circuited or wrongly connected (F1,F2). – The outdoor unit (or indoor unit) power is lost. – The address system does not match. – Faulty indoor unit board. – Error in the outdoor unit. |
6 | U5 | Error due to signal transmission between indoor unit and remote |
– Check the transmission line between remote and indoor unit. – Check the settings if there is 1 indoor unit using 2 remotes. – Remote board error. – Faulty indoor unit board. – Errors may occur due to interference. |
7 | U7 | Error of signal transmission between outdoor units |
– Check the connection between the outdoor unit and the C/H controller adapter. – Check the signal wire of the barrel-heater. – Check the outdoor unit board. – Cool/Heat controller adapter error. – Cl/H controller adapter is not compatible. – Incorrect address (outdoor unit, C/H controller adapter). |
8 | U8 | Signal transmission error between remotes “M” and “S” |
– Check the signal transmission between the main and slave remote. – Remote board error. – Sub-controller connection error. |
9 | U9 | Signal transmission error between indoor and outdoor units in the same system |
– Check signal transmission inside-outside the system. – Check the electronic throttle valve on the system indoor unit. – System indoor unit board error. – Connection error between outdoor and indoor units. |
ten | United States | Daikin UA air conditioner error code is an error that exceeds the number of indoor units, etc.. |
– Check the number of indoor units again. – Error of the outdoor unit. – Incompatibility between indoor and outdoor units. – When performing the replacement, do not reinstall the outdoor unit board. – Duplicate address in central remote. – Check the system address and reinstall. |
11 | UE | Error in signal transmission of central remote and indoor unit |
– Check signal of indoor unit and central remote. – Master control signal transmission error. – Central control board error. – Faulty indoor unit board. |
twelfth | UF | Refrigeration system installed incorrectly, not compatible with control wire/gas pipeline |
– Check signal of indoor unit and outdoor unit. – Faulty indoor unit board. – The stop valve is not open. – Do not run system test. |
13 | UH | System malfunction, and gas system address unknown |
– Check signal of outdoor unit – indoor unit, outdoor unit, outdoor unit. – Faulty indoor unit board. – Error of the outdoor unit. |
Most of the above damage, you should not fix it yourself. Please contact the warranty or technical units for repair support. Avoid self-manipulation that makes the condition worse.
Refer: Summary of today’s popular air conditioning unit sizes
With table Daikin air conditioner error code above, wish you have useful information and fix the damage properly. Thanks for watching.
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Source: Summary of the most accurate and detailed Daikin air conditioner error code table
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