List Of Samsung Air Conditioner Error Codes Troubleshooting Guide!

Samsung is known for producing high-quality air conditioners with a modern aesthetic. The Samsung air conditioner’s smart device provides efficient cooling. From time to time, you could notice that your device is flashing an error code. These Samsung Air Conditioner Error Codes are markers for internal problems that need fixing in your unit. This post will give you a thorough list of Samsung AC error codes and instructions on how to decipher them to identify and fix any issues with your Samsung air conditioner.

Naturally, the updated list of Samsung AC error codes, along with a probable explanation and a fix, is as follows:

Samsung Air Conditioner Error Codes: The Complete List

CodePossible CauseSolution
ChProhibit starting during operation of the Crack case heaterCheck the operation of the Crack case heater
E108Error due to repeated communication addressVerify communication addresses
E121Error on room temperature sensor of indoor unit (Short or Open)Inspect and replace room temperature sensor
E122Error on EVA IN sensor of indoor unit (Short or Open)Examine and replace EVA IN sensor
E123Error on EVA OUT sensor of indoor unit (Short or Open)Inspect and replace EVA OUT sensor
E124Communication error sends from indoor unitInvestigate and resolve indoor unit communication error
E128Indoor unit EVA IN sensor breakawayAddress EVA IN sensor breakage
E129Indoor unit EVA OUT sensor breakawayAddress EVA OUT sensor breakage
E131Indoor unit heater sensor errorCheck and replace indoor unit heater sensor
E151Indoor unit EEV open failure(When 2* detection)Investigate EEV open failure (When 2* detection)
E152Indoor unit EEV close failure(When 2“ detection)Investigate EEV close failure (When 2“ detection)
E153Indoor unit floating S/V error(When 2“ detection)Examine and resolve floating S/V error (When 2“ detection)
E154Indoor unit fan errorAddress indoor unit fan error
E162Outdoor unit EEPROM errorInvestigate and resolve outdoor unit EEPROM error
E198Error on thermal fuse of indoor unit (Open)Inspect and replace indoor unit thermal fuse
E201Communication error between indoor unit and outdoor unit (Pre tracking failure or when actual number of indoor units are different from the indoor unit quantity setting on the outdoor unit) Error due to communication tracking failure after initial power supply (The error occurs with the failure regardless of the number of devices)Verify communication between indoor and outdoor units
E202Communication error between indoor and outdoor unit (When not received in every room after completing the tracking)Ensure communication between indoor and outdoor units
E203Communication error between outdoor unit inv – main micom (For PF #4~#6 controller, error will be determined from the time when compressor turns on)Investigate outdoor unit inv-main micom communication error
E221Error on outdoor temperature sensor (Short or Open)Check and replace outdoor temperature sensor
E231Error on outdoor COND OUT sensor (Short or Open)Inspect and replace outdoor COND OUT sensor
E241COND OUT sensor breakawayAddress COND OUT sensor breakage
E251Digital comp.1 discharge temperature sensor(Short or Open)Inspect and replace digital comp.1 discharge temperature sensor
E256Fixed comp.1 discharge temperature sensor(Short or Open)Examine and replace fixed comp.1 discharge temperature sensor
E257Fixed comp.2 discharge temperature sensor(Short or Open)Inspect and replace fixed comp.2 discharge temperature sensor
E258Fixed comp.3 discharge temperature sensor(Short or Open)Address fixed comp.3 discharge temperature sensor issues
E262Fixed compl Discharge temperature sensor breakawayResolve fixed compl discharge temperature sensor breakage
E263Fixed comp2 Discharge temperature sensor breakawayInvestigate and address fixed comp2 discharge temperature sensor breakage
E264Fixed comp3 Discharge temperature sensor breakawayExamine and resolve fixed comp3 discharge temperature sensor breakage
E265Digital compl Sump temperature sensor breakaway. Fixed compl Sump temperature sensor breakawayAddress digital compl and fixed compl sump temperature sensor breakage
E267Fixed comp2 Sump temperature sensor breakawayInvestigate and resolve fixed comp2 sump temperature sensor breakage
E268Fixed comp3 Sump temperature sensor breakawayExamine and address fixed comp3 sump temperature sensor breakage
E269Suction temperature sensor breakawayAddress suction temperature sensor breakage
E271Comp.1 Sump temperature sensor(Short or Open)Check and replace Comp.1 sump temperature sensor
E291High-pressure sensor(Short or Open)Inspect and replace high-pressure sensor
E296Low-pressure sensor(Short or Open)Address low-pressure sensor issues
E307Oil balance sensorl (Short or Open)Investigate and resolve oil balance sensor issues
E308Suction sensor(Short or Open)Inspect and replace suction sensor
E311Double pipe sensor(Short or Open)Address double pipe sensor issues
E320Error on OLP sensor (Short or Open)Check and replace OLP sensor
E403Compressor down due to freeze protection controlInvestigate and address compressor freeze protection control issues
E404System stop due to overload protection controlResolve system stoppage due to overload protection control
E407Comp, down by high pressureExamine and address compressor shutdown due to high pressure
E410Comp, down by low pressureInvestigate and resolve compressor shutdown due to low pressure
E413Comp, down by the sump protection controlAddress compressor shutdown due to sump protection control
E416Comp, down by the discharge temperature sensorInspect and address compressor shutdown due to discharge temperature sensor
E422Blockage detected on high-pressure pipeClear blockage on high-pressure pipe
E425Reverse phase or open phaseAddress reverse or open phase issues
E428Comp down by compression ratio controlInvestigate and resolve compressor shutdown due to compression ratio control
E431Equal oil valve 1 self-diagnosisAddress equal oil valve 1 self-diagnosis issues
E440Heating operation restricted at outdoor temperature overheating value (default: 30 °C)Verify and address outdoor temperature overheating value
E441Cooling operation restricted at outdoor temperature below cool value (default 0°QCheck and address cooling operation restrictions due to low outdoor temperature
E442Forbid an operation during heat mode with refrigerant charging operation when outdoor temperature is over 15°CEnsure proper operation during heat mode with refrigerant charging at higher outdoor temperatures
E443Start prohibition by refrigerant pressure errorInvestigate and address start prohibition due to refrigerant pressure error
E452Instant power-off errorAddress instant power-off error
E453Fan motor hifi temperature errorInvestigate and resolve fan motor high-temperature error
E454Fan motor RPM errorAddress fan motor RPM error
E455Fan motor IPM high-temperature errorExamine and address fan motor IPM high-temperature error
E456Fan motor overcurrent errorInvestigate and resolve fan motor overcurrent error
E457Fan motor reverse rotation errorAddress fan motor reverse rotation error
E458Fan speed errorExamine and address fan speed error
E461Error due to operation failure of inverter compressorInvestigate and resolve inverter compressor operation failure
E461Low currentAddress low current issues
E462System stop due to full current controlResolve system stoppage due to full current control
E463System stop due to OLP temperature controlInvestigate and address system stoppage due to OLP temperature control
E464System stop due to DC PeakAddress system stoppage due to DC Peak
E465Compressor overload preventionInvestigate and address compressor overload prevention
E466DC-Link voltage under/over errorExamine and address DC-Link voltage under/over error
E467Error due to abnormal rotation of the compressor or unconnected wire of compressorInvestigate and address abnormal compressor rotation or unconnected compressor wire
E468Error on current sensor (Short or Open)Check and replace current sensor
E469Error on DC-Link voltage sensor (Short or Open)Inspect and replace DC-Link voltage sensor
E470Outdoor unit EEPROM Read/Write error (Option)Investigate and address outdoor unit EEPROM Read/Write error (Option)
E471Outdoor unit EEPROM Read/Write error (H/W)Investigate and address outdoor unit EEPROM Read/Write error (H/W)
E472AC Line Zero Cross Signal outAddress AC Line Zero Cross Signal out error
E473Comp Lock errorInvestigate and resolve compressor lock error
E474Error on IPM Heat Sink sensor of inverter 1 (Short or Open)Inspect and replace IPM Heat Sink sensor of inverter 1
E475Error of inverter fan 2Investigate and address inverter fan 2 error
E484PFC Overload (Overcurrent) ErrorAddress PFC Overload (Overcurrent) Error
E485Error on input current sensor of inverter 1 (Short or Open)Check and replace input current sensor of inverter 1
E500IPM overheat error on inverter 1Investigate and resolve IPM overheat error on inverter 1
E508Smart install is not installedInstall Smart install
E554Gas leak detectedAddress gas leak detected
E556Error due to mismatching capacity of indoor and outdoor unitEnsure matching capacity of indoor and outdoor units
E557DPM remote controller option errorInvestigate and resolve DPM remote controller option error
E560Switch option setting error(rvot applied)Correct switch option setting error
E590Inverter EEPROM Checksum errorInvestigate and address Inverter EEPROM Checksum error
E660Error of inverter Boot CodeInvestigate and resolve inverter Boot Code error
P701Indoor unit floating S/V error(When 1“ detection)Examine and resolve indoor unit floating S/V error (When 1“ detection)
P702Indoor unit EEV close failure(When 1“ detection)Investigate indoor unit EEV close failure (When 1“ detection)
P703Indoor unit EEV open failure(When 1“ detection)Resolve indoor unit EEV open failure (When 1“ detection)

Read More About Samsung:

Samsung Remote Controls Buttons Meaning

C2 error in Samsung AC

A C2 error in Samsung AC usually denotes a problem with the interior fan motor. A faulty control board, wiring, or motor could cause this error. Improper operation of the indoor fan motor can result in insufficient airflow and impact the AC unit’s overall cooling capacity.

Samsung inverter AC E4 error code

Usually, the Samsung inverter AC E4 error code denotes a compressor issue. The compressor is one crucial part that keeps the air conditioning unit cool. The compressor is not operating correctly when the E4 error number appears on the display.

Samsung Mini Split Error Codes

Samsung mini-split air conditioners use error codes to assist technicians and users in identifying system problems. You can access these codes by using the indoor unit’s remote control or LED display. The following list of standard Samsung mini split error codes, along with their explanations:

1. Error E1

Usually, this code denotes a problem with communication between the indoor and outdoor equipment. The cause could be a malfunctioning control board or wiring problem.

2. Error E2

The E2 error indicates that the temperature sensor is incorrectly connected. Sometimes, a malfunctioning sensor or a faulty connection can cause the problem.

3. Error E3

This number indicates that there may be a temperature sensor issue with the condenser coil. It can be the result of coil troubles or sensor problems.

4. Error E4

An E4 error typically denotes a refrigerant leak or a problem with the heat exchanger temperature sensor on the outside unit.

5. Error E5

The wired remote control and the indoor unit’s communication are related to E5. It can be a sign of a malfunctioning remote control or a wiring problem.

6. Error E6

The indoor fan motor is the source of the E6 fault. A wiring issue or a broken motor can cause it.

7. Error E7

Error code E7 indicates a problem with the outside fan motor. It could be the result of bad wiring or a motor issue.

8. Error E8

This number indicates a high-temperature problem with the outdoor unit, possibly due to insufficient refrigerant or ventilation.

9. Error E9

E9 indicates a high-pressure switch malfunction in the system, which frequently results from high pressure in the refrigerant circuit.

10. Error E10

An E10 error usually indicates a low refrigerant pressure-related problem with the low-pressure switch.

Important Note:

Please be aware that the fixes for the Samsung Air Conditioner Error Codes might change based on the model of your AC. When encountering error codes with your air conditioner, it is best to consult the user manual or seek assistance from a qualified technician to identify and resolve the issue accurately. To properly diagnose and fix complicated or persistent problems, getting help from a certified HVAC specialist is essential.

Read More about Air Conditioner:

Frequently Asked Questions

What Does The Error Code “CH” Mean In A Samsung Inverter AC?

The error code “CH” on a Samsung inverter air conditioner usually indicates an issue with the inside temperature sensor. There may be a problem with the sensor or with the connection. You could have the sensor checked and changed, or you might need to call a specialist for help.

What Does Fault Code 201 Mean on a Samsung Inverter AC?

Error number 201 indicates a communication issue between the indoor and outdoor units on a Samsung inverter air conditioner. This can be the result of problems with the control board or wiring. Examine the wiring connections and, if necessary, obtain professional assistance to fix the issue.

On a Samsung air conditioning machine, what does trouble code 1 mean?

A Samsung air conditioning unit’s error number 1 usually indicates an issue with the indoor fan motor. It could be the result of a wiring problem or a broken motor. To fix this, you should assess the motor’s condition, verify the wiring connections, and get professional assistance for any necessary repairs or replacements.

Why are my Samsung Air Conditioning Unit’s lights Flickering green and red?

When the red and green lights on your Samsung air conditioner blink simultaneously, there may be a problem with the power supply or voltage variations. Power surges or other electrical issues may be the cause of this. To fix this, ensure the power source is steady, consider utilizing a voltage stabilizer, and get advice from an electrician if the problem continues

How to Reset a Samsung AC?

These steps are to reset your Samsung AC:
Turn off the Air Conditioner with the power button or remote.
Unplug the AC or turn off the circuit breaker to disconnect it
A few minutes (around five) should pass for any remaining power to disappear.
Reattach the power supply to the AC
Press the power button or the remote to turn the Air Conditioner back on.
This procedure can assist in fixing minor bugs or flaws in the system and will successfully reset your Samsung AC.

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