19 Daewoo air conditioner error codes + troubleshooting

Daewoo has made a great case among the big names in AC manufacturing companies. This has become possible because of their high-quality, reliable, and durable products. If you have a Daewoo air conditioner and you are facing an error code on the screen, don’t worry because this is just an indication of an issue in your system.

We have gathered all the error codes along with their causes and solutions so that you can take down the error and go to the normal working of the day in no time. Always contact the company’s customer support or a licensed technician to assist you if you don’t have enough knowledge or skills to repair the system.

Daewoo Air Conditioner Indoor Unit Error Codes

Daewoo air conditioner error code E0

Causes:

1. EEPROM has some issues.
2. The instructions and information on the EEPROM chip have been erased or removed.
3. The instructions on the chip can’t be read by the system.
4. The EEPROM chip itself is damaged.

Solutions:

1. Turn OFF the unit for 3-5 minutes. Restart it again to see if the error goes away.
2. Check the EEPROM chip for any breakage. Replace the whole control board if the chip is broken.
3. Seek the help of company customer support or a professional engineer to check the EEPROM chip and its instructions. If the instructions are not there, upload them.

Daewoo air conditioner error code E1

Causes:

1. There are some issues with the communication between the indoor and outdoor units.
2. There are damaged, broken, or loose wiring and connections for communication between the indoor and outdoor units.

Solutions:

1. Check the particular wire for communication between the indoor and outdoor units. Repair broken wires or loose connections.
2. Make sure the connections are perfectly tightened.
3. Inspect the main PCB of both units and if faulty replace them with a new one.

Daewoo air conditioner error code E2

Causes:

This is a zero-crossing examination or detection error which can occur when/if:

1. When a signal falls and becomes negative or a signal falls through or to zero. 
2. The system is changing its voltage polarity from negative to positive or the other way around.

Solutions:

1. Restart or re-energize the system to see if the error resolves.
2. If the error persists, seek the professional help of a licensed and authorized technician to inspect the voltage polarity and do fixations as needed.

Daewoo air conditioner error code E3

Causes:

1. The speed of the fan is changing abnormally.
2. Fan speed is getting out of control.

Solutions:

1. Turn OFF the system for a few seconds and then turn it ON again.
2. Check the voltage with the help of a voltmeter. Make sure a constant and stable voltage is supplied.
3. Check for any issues in the connections and wiring between the fan motor, power supply, and main PCB. Repair or replace the damaged wires.
4. Check for any malfunctions in the fan motor. Replace or repair it if it is faulty.
5. Inspect the power supply for issues. Repair or replace the component if supplying unstable voltages.
6. If the error remains, check the main PCB as it can be defective. Replace it if that’s the case.

Daewoo air conditioner error code E6

Causes:

1. The temperature sensor of the indoor unit is not operating well.
2. The connector of the sensor is loose or broken.
3. There is an open or short circuit in the indoor unit temperature sensor.

Solutions:

1. Check the resistance of the sensor. Replace the sensor with the strong or compatible one if it is weak.
2. Check the sensor for any issues. Make sure that it is placed perfectly at its particular position and that there is no bent in it.
3. Check for any broken or loose wiring and connections between the sensor and the main PCB. Repair or replace the wires as needed.
4. Check the sensor. Replace it if it malfunctions.
5. Check for any issues in the main PCB. Replace it if it is malfunctioning.

Daewoo Air Conditioner Outdoor Unit Error Codes

Daewoo air conditioner error code E0

Causes:

1. There are some issues with the EEPROM chip.
2. The information on EEPROM has been erased or instructions have been removed.
3. The system is not able to read instructions on the EEPROM chip.
4. The chip is broken or damaged.

Solutions:

1. Try the exact solutions suggested for the Daewoo AC “Indoor Unit Error Code E0”.

Daewoo air conditioner error code E1

Causes:

1. There are some malfunctioning in the indoor unit pipe temperature sensor 1.
2. The connector of the pipe temperature sensor is broken.
3. The sensor or connector of the sensor is subjected to an open or short circuit.

Solutions:

1. Try the exact solutions suggested for the Daewoo AC “Indoor Unit Error Code E6”.

Daewoo air conditioner error code E2

Causes:

1. The indoor unit pipe temperature sensor 2 or connector of the pipe temperature sensor is not working well.
2. There is an open or short circuit in the pipe temperature sensor.

Solutions:

1. Try the exact solutions suggested for the Daewoo AC “Indoor Unit Error Code E6”.

Daewoo air conditioner error code E3

Causes:

1. The indoor unit pipe temperature sensor 3 is facing some issues in its functioning.
2. The indoor unit pipe temperature sensor or connector of the pipe temperature sensor has an open or short circuit.

Solutions:

1. Try the exact solutions suggested for the Daewoo AC “Indoor Unit Error Code E6”.

Daewoo air conditioner error code E4

Causes:

1. The outdoor temperature sensor or connector of the temperature sensor is not functioning properly.
2. There is an open or short circuit in the outdoor temperature sensor.

Solutions:

1. Try the exact solutions suggested for the Daewoo AC “Indoor Unit Error Code E6”.

Daewoo air conditioner error code E5

Causes:

1. The voltages are being supplied above or below their maximum or minimum required limit respectively.
2. The compressor overvoltage or over-low voltage protection mode has been initiated in the air conditioner.

Solutions:

1. Check the voltage with the help of a meter and ensure a stable and constant supply of voltages.
2. Check the power cord. Plug it properly if it was loosely plugged in.
3. Check the wiring and connections between the power supply and other parts of the system. Repair or replace the defective or damaged wires as needed.
4. Check for any issues in the power supply. Repair or replace it if it is faulty.
5. Inspect the main PCB and replace it if it is at fault.
6. If you still get errors, check the compressor. If there are any issues, repair or replace them as required.

Daewoo air conditioner error code E6

Causes:

1. The indoor unit pipe temperature sensor is malfunctioning.
2. There is an open or short circuit in the indoor unit pipe temperature sensor or connector of the pipe temperature sensor.

Solutions:

1. Try the exact solutions suggested for the Daewoo AC “Indoor Unit Error Code E6”.

Daewoo air conditioner error code E7

Causes:

1. The indoor and outdoor units of the air conditioner are facing some issues in communication.
2. There is broken, burned, or loose wiring and connections between the indoor and outdoor unit.

Solutions:

1. Try the exact solutions suggested for the Daewoo AC “Indoor Unit Error Code E1”.

Daewoo Air Conditioner ITD/OTD Error Codes

Daewoo air conditioner error code P0, P4

Causes:

1. The IPM is defective.
2. The inverter module protection mode has been activated.
3. The wire harness of the IPM module is broken.

Solutions:

1. Restart the air conditioner after shutting it down for a few minutes.
2. Check the power cord, power supply, and voltage with the meter. Make sure enough stable voltage is being supplied.
3. Check for any issues in the wiring and connections between the inverter module and the sensor. Repair the damaged connections as required.
4. If the error persists, check the main PCB for any malfunctions. Replace it if it is needed.

Daewoo air conditioner error code P1

Causes:

1. The high-pressure protection mode has been initiated in the system.
2. There is clogged-up dirt or dust in the coils, air filters, and evaporator of the air conditioner.
3. There are some issues with the high-pressure switch.

Solutions:

1. Check the condenser coils, air filters, and other components for any clogged-up dirt or dust. Clean them thoroughly to remove all the debris that has been built up.
2. Clean the fan and make sure that they are running smoothly and at high speed. Repair them as required.
3. Check the voltage with the meter and ensure a stable supply to the system.
4. If you are still getting errors, check the high-pressure switch for any malfunctions. Replace it if it is defective.

Daewoo air conditioner error code P2, P0

Causes:

1. The system has initiated compressor top protection against the temperature.

Solutions:

1. Check the system connection and ensure it is properly connected to the power. Repair the power cord if un-insulated or defective.
2. Check the compressor protector. Repair or replace it if it is malfunctioning.
3. Measure the refrigerant level and fill the gas if it is low. If the level is perfect, inspect the refrigerant system and do repairs as needed.
4. Check the outdoor unit’s main PCB and replace it if it is malfunctioning.

Daewoo air conditioner error code P3

Causes:

1. The system has entered the current protection mode to protect the compressor from any major damages.
2. There is an unstable supply of voltage to the system.

Solutions:

1. Check the compressor phase sequence. Make sure that it is perfectly adjusted.
2. Check for any issues in the connections and wire terminals of the compressor. Repair broken or loose wires and connectors with the help of a professional technician.
3. Check the main board. Repair it if it malfunctions.
4. If the error remains, check the compressor itself. Repair or replace it as required.

Daewoo air conditioner error code P5

Causes:

1. Outdoor unit low-temperature protection is activated.
2. The low-temperature sensor of the outdoor unit is defective.

Solutions:

1. The outdoor or environmental temperature is too cold for the air conditioner to work. Switch modes to see if the error resolves.
2. Check the sensor harness and do repairs of broken wires and loose connectors.
3. Inspect the low-temperature sensor and replace it if it is malfunctioning.
4. Check the outdoor unit low-temperature cutoff switch and do repairs if defective.
5. Inspect the main PCB of the outdoor unit and replace it if it is malfunctioning.

If the error persists, seek the assistance of an authorized HVAC engineer or a technician to inspect the outdoor unit and related components.

Daewoo air conditioner error code P6

Causes:

1. The condenser is overheating.
2. The high-temperature protection has been activated to prevent condensers from major damage.

Solutions:

1. Turn OFF the unit and wait for the condenser to cool down to a normal temperature.
2. Clean the condenser, evaporator, and condenser coils to remove dirt covering up the components.
3. Check and ensure there is no clogging in the refrigerant coils.
4. Check condenser wires and repair the harness if it is broken.
5. Inspect the main PCB and replace it if it’s malfunctioning.
6. Inspect the condenser for any issues. Repair or replace it as suggested by the technician.

Daewoo Air Conditioner Miscellaneous Problems and Issues

Daewoo air conditioner has no power

Causes & Solutions:

1. Check the power and restore it if there is a failure in the power supply.
2. If there is a decrease in the supply of line voltage, install a new outlet by taking help from an electrician.
3. Make sure that the unit is plugged properly into the switch.
4. Turn ON the unit if it is powered OFF.
5. Check the batteries in the remote. Replace them if they are weak or dead.
6. Switch the EMERGENCY mode to REMOTE.

The Daewoo air conditioner compressor is not starting or cooling

Causes & Solutions:

1. If the air conditioner is turned ON immediately after being turned OFF, it will take 3 minutes for the compressor to start functioning again.
2. Check the air filters for any dirt or debris. Clean it thoroughly to remove all the clogged-up debris.
3. The compressor may not work if there is heat near the unit. While installing the air conditioner, make sure it is located in a place away from the stove or heater, etc.
4. The warm air entering or cold air escaping the room can also limit the normal functioning of the compressor. Make sure all doors and windows are completely closed.
5. Check for anything blocking the front of the indoor or outdoor unit and remove them if there is any.
6. Set the thermostat or operating temperature to a low level if it is too high.

Daewoo air conditioner is emitting weird noises

Causes & Solutions:

1. After the air conditioner is turned ON and OFF, the refrigerant flows inside it when it is operating. This could be the noise of gas flowing which is completely normal and there is no problem with the air conditioner.
2. Seek professional help if the noise doesn’t go away after a few minutes of operation.

Daewoo air conditioner is emitting weird smells

Causes & Solutions:

1. The smell will go away usually after some time as it is the smell being brought by the fan coming from the carpet, walls, or anything in the room.
2. This is normal and mostly happens when you have new products in the room or you have just got your furniture polished.

The remote controller of the Daewoo air conditioner is not working

Causes & Solutions:

1. Check the batteries as they may not be inserted properly. Replace them if they are dead.
2. Move closer to the air conditioner as the remote may be out of range.
3. Make sure that the remote is aimed at the sensor.
4. Check for any interruption between the remote and the unit. Remove obstacles such as a fan, fur tire, or any other thing coming in between the signal receiver and the remote controller.