Daikin Simple Self Diagnosis

An external safety device has tripped, shutting down the heat reclaim ventilator.

This indicates a fault with the main printed circuit board (PCB) of the heat reclaim ventilator.

The ozone sensor in the heat reclaim ventilator has detected abnormal levels.

A sensor within the heat reclaim ventilator is reporting an error, possibly due to contamination.

The temperature sensor for the indoor air intake in the heat reclaim ventilator is malfunctioning.

The temperature sensor for the outdoor air intake in the heat reclaim ventilator is malfunctioning.

This code indicates a problem with the indoor unit's fan motor. The fan might be blocked, not spinning correctly, or have an electrical issue.

This error means the motor controlling the air louvers or swing flap in the indoor unit is not functioning correctly.

This code points to a problem with one of the sensors within the indoor unit. This could be a temperature sensor or another type of sensor.

This error indicates an issue with the sensor that monitors the water level in the unit's drain system. It might be detecting an incorrect level or failing to detect.

This code signifies a problem with the temperature sensor (thermistor) on the liquid pipe of the indoor unit's heat exchanger.

The indoor unit has detected a potential freezing issue, likely related to airflow or refrigerant levels.

This error indicates a malfunction with the indoor unit's fan motor, possibly due to an electrical issue or obstruction.

This code means there is a problem with the sensor that measures humidity levels inside the room.

An external device has tripped a safety protection, causing the outdoor unit to shut down.

This code indicates a fault within the main control board (PCB) of the outdoor unit.

The low-pressure switch in the outdoor unit has been activated, indicating abnormally low refrigerant pressure.

This error suggests the compressor motor in the outdoor unit is overheating or experiencing an electrical issue.

The standard compressor motor in the outdoor unit has detected overcurrent or is locked, preventing it from running.

This code indicates a problem with the fan motor in the outdoor unit, such as it not spinning or experiencing an electrical fault.

The inverter compressor in the outdoor unit is drawing too much current, which can damage the system.

There is an issue detected with the temperature sensor measuring the discharge pipe in the outdoor unit.

The high-pressure switch (HPS) has activated, indicating that the pressure within the outdoor unit's refrigerant system is too high.

This code signals a problem with a sensor related to the compressor in the outdoor unit.

This error indicates a problem with either the room temperature sensor or the damper in the humidifier unit of the indoor system.

The outdoor unit's sensor responsible for monitoring the power supply has detected an issue.

The high-pressure switch in the outdoor unit has activated due to excessively high refrigerant pressure.

The low-pressure switch in the outdoor unit has activated, signaling critically low refrigerant pressure.

The overload protection for the compressor motor has been triggered, indicating the motor is too hot or drawing too much current.

This code indicates a problem with the current transformer (CT) system that monitors the compressor's input current.

The outdoor unit's fan motor is not receiving the correct signal or is not operating as expected.

This error code suggests that one of the thermistors (temperature sensors) in the outdoor unit may be incorrectly wired.

A pressure sensor in the outdoor unit is not functioning correctly, potentially affecting system performance.

The sensor monitoring the compressor's current draw has detected an issue.

The temperature sensor on the discharge pipe of the outdoor unit is reporting incorrect or faulty readings.

This error indicates a problem with the temperature sensor on the suction pipe of the outdoor unit.

The outdoor unit's fan motor is not functioning correctly or is not receiving the proper control signal.

This code indicates a general malfunction within the inverter system of the outdoor unit.

The inverter has detected a sudden surge of current on its DC output, which could indicate a short circuit or component failure.

The inverter has detected a sudden surge of current on its AC output, suggesting a potential short circuit or component failure.

The total current drawn by the outdoor unit exceeds its designed limits, indicating a potential overload or electrical fault.

The inverter compressor has experienced an overcurrent condition, meaning it's drawing too much power.

The inverter compressor failed to start correctly, and the system's stall prevention feature activated.

The thermal storage unit indicates a low level of refrigerant, possibly due to a leak.

This error relates to an imbalance in the power voltage supplied to the unit or a fault with the inverter PCB.

The temperature sensor monitoring the radiation fins in the outdoor unit has detected an issue.

There is an incompatibility detected between the inverter and the fan driver components in the outdoor unit.

The system is indicating a shortage of refrigerant, which could be due to a leak or low charge.

The unit has detected an incorrect phase sequence in the power supply or an open phase, which can damage the system.

This error code indicates a problem with the power supply to the outdoor unit or a recent, sudden power interruption.

The system has failed to complete its initial check operation, or there's a communication error between the indoor and outdoor units.

There is a communication failure between the indoor and outdoor units.

Communication between the indoor unit and its remote controller has failed.

If multiple indoor units are connected, this code indicates a communication problem between them.

This error indicates a communication failure between multiple outdoor units or between an outdoor unit and a storage unit.

If multiple remote controllers are used, this code indicates a communication error between them.

This error code suggests a communication problem with an accessory device or another connected system.

The indoor and outdoor units are not compatible with each other, indicating a potential installation or configuration error.

The address setting for the centralized control equipment is incorrect or duplicated, causing a conflict.

This code indicates a communication error with an accessory device connected to the system.