Error codes are displayed on the control panel display. If the equipment is operating in abnormal mode, an alphanumeric code blinks on the monitor.
Daikin air conditioner error codes
| Deciphering the error of the Daikin air conditioner | ||
| Literal meaning | Digital value | |
| BUT | 0 | Equipment breakdown prevention |
| BUT | 1 | Indoor module board failure |
| BUT | 2 | Fan motor does not work |
| BUT | 3 | The amount of condensate in the collection container has been increased |
| And the air conditioner error Daikin | 4 | Broken heat exchanger |
| BUT | 5 | Too high or low temperature of the heat exchanger |
| BUT | 6 | Fan motor overheating |
| BUT | 7 | No power supply to the blinds |
| BUT | 8 | Overvoltage in the network |
| A | 9 | Broken expansion valve board |
| AA | Heating element temperature exceeded | |
| AH error of the Daikin air conditioner | Filters need to be cleaned | |
| AC | No cooling / heating | |
| AJ | Indoor module control function broken | |
| AE | There is not enough water in the installation | |
| AF | The humidification function is impaired | |
| C | 0 | The function of the temperature sensor is broken |
| C | 3 | The function of the sensor measuring the amount of condensate in the tank is broken |
| C | 4 | Internal heat exchanger temperature sensor failure |
| C | 5 | Failure of the temperature sensor of the external heat exchanger |
| C | 6 | The sensor has stopped the fan due to overheating of the motor |
| C | 7 | Breakage of the blinds movement sensor |
| C | 8 | No control over incoming mains voltage |
| C | 9 | Broken input thermistor |
| CA | Broken output thermistor | |
| CH error code Daikin air conditioner | You should clean the indoor unit from dust | |
| CC | Broken sensor that detects humidity inside the air conditioner | |
| CJ | Breakdown of the temperature sensor on the remote control | |
| CE | There is no communication between the remote control and the indoor unit | |
| CF | High pressure sensor breakage | |
Outdoor unit error codes
| Deciphering the error codes of the Daikin air conditioner | ||
| Literal meaning | Digital value | |
| E | 0 | The unit is disabled due to an accident |
| E | 1 | No communication with the head PCB of the outdoor unit |
| E | 3 | System pressure too high |
| E | 4 | System pressure too low |
| E | 5 | Compressor off due to overtemperature |
| E error code Daikin air conditioner | 6 | The compressor is disconnected due to overvoltage in the mains |
| E | 7 | The fan motor is stopped due to overvoltage in the network |
| E | 8 | Too high voltage applied |
| E | 9 | Expansion valve malfunctioning |
| EH | Pump stopped | |
| EC | The water temperature is too low or high | |
| EJ | Additional protection of the block has turned on | |
| EE | Increased amount of condensate | |
| EF | Broken heating module | |
| H | 0 | Broken temperature sensor |
| H | 1 | Breakdown of the outdoor temperature sensor |
| H | 2 | Electricity supply interrupted |
| H | 3 | The pressure in the system is increased |
| H | 4 | System pressure lowered |
| H | 5 | Compressor shutdown due to overload |
| H | 6 | The fan is off due to motor overload |
| H | 7 | Disturbed input voltage distribution |
| H | 8 | The outside temperature is too low or too high |
