Samsung Split System Air Conditioner Error Codes And Troubleshooting

Listed here is the Samsung Split System Air Conditioner Error Codes and how to troubleshoot. The Samsung Split System AC Error Codes tells you that there is an issue. This Samsung AC Error Code will tell you weather the error is from withing the AC or is it due to something external unit. If you know the Meaning of the Error code then it will be very easy to troubleshoot and resolve the issue and fix Samsung AC quickly and easily. Just Check the manual, then get it serviced or have it repaired or replace it. We have given the Error Code List for Samsung Split System Air Conditioners. Please also see the Samsung AC pdf manual for more details.

Samsung Split System Air Conditioner Error Codes

Indoor Display Error and Check Method

Samsung Split Air Conditioner Error Code – E101 / E102
Error Code Meaning – Communication Error (Indoor Outdoor)

Samsung Split Air Conditioner Error Code – E121
Error Code Meaning – ROOM TH sensor error

Samsung Split Air Conditioner Error Code – E122
Error Code Meaning – INDOOR MID, INDOOR IN PIPE-TH sensor error

Samsung Split Air Conditioner Error Code – E154
Error Code Meaning – Fan Error (Indoor)

Samsung Split Air Conditioner Error Code – E162
Error Code Meaning – EEPROM Error (Indoor)

Samsung Split Air Conditioner Error Code – E162
Error Code Meaning – EEPROM Error (Indoor)

Samsung Split Air Conditioner Error Code – E163
Error Code Meaning – Option Error

Samsung Split Air Conditioner Error Code – E203
Error Code Meaning – Time out Comm. (Inv Micom Main Micom)

Samsung Split Air Conditioner Error Code – E221
Error Code Meaning – OUT-TH(Outdoor Temperature) Sensor Error

Samsung Split Air Conditioner Error Code – E231
Error Code Meaning – CON-TH(Cond Temperature) Sensor Error

Samsung Split Air Conditioner Error Code – E251
Error Code Meaning – DIS-TH(Discharge Temperature) Sensor Error

Samsung Split Air Conditioner Error Code – E416
Error Code Meaning – DIS-TH(Discharge Temperature) Over Error

Samsung Split Air Conditioner Error Code – E422
Error Code Meaning – EEV or Valve Close error-Self diagnosis

Samsung Split Air Conditioner Error Code – E440
Error Code Meaning – Prohibit Operation Condition Error (Heating)

Samsung Split Air Conditioner Error Code – E441
Error Code Meaning – Prohibit Operation Condition Error (Cooling)

Samsung Split Air Conditioner Error Code – E458
Error Code Meaning – Fan Error(Outdoor)

Samsung Split Air Conditioner Error Code – E461
Error Code Meaning – Comp Starting Error

Samsung Split Air Conditioner Error Code – E462
Error Code Meaning – AC Input I_Limit Trip Error

Samsung Split Air Conditioner Error Code – E464
Error Code Meaning – IPM Over Current(O.C) Error

Samsung Split Air Conditioner Error Code – E465
Error Code Meaning – Comp V_limit/I_limit Error

Samsung Split Air Conditioner Error Code – E466
Error Code Meaning – DC-Link Voltage Under/Over Error

Samsung Split Air Conditioner Error Code – E467
Error Code Meaning – Comp Wire Missing Error

Samsung Split Air Conditioner Error Code – E468
Error Code Meaning – Current Sensor Error

Samsung Split Air Conditioner Error Code – E469
Error Code Meaning – DC-Link Voltage Sensor Error

Samsung Split Air Conditioner Error Code – E470
Error Code Meaning – EEPROM Data Error (no data)

Samsung Split Air Conditioner Error Code – E471
Error Code Meaning – EEPROM Data Error (Main Micom Inv Micom)

Samsung Split Air Conditioner Error Code – E474
Error Code Meaning – Heatsink Sensor Error

Samsung Split Air Conditioner Error Code – E483
Error Code Meaning – Over Voltage Protection Error

Samsung Split Air Conditioner Error Code – E484
Error Code Meaning – PFC Over Load Error

Samsung Split Air Conditioner Error Code – E485
Error Code Meaning – Input Current Sensor Error

Samsung Split Air Conditioner Error Code – E488
Error Code Meaning – AC Input Voltage Sensor Error

Samsung Split Air Conditioner Error Code – E500
Error Code Meaning – Heatsink Over Temperature Error

Samsung Split Air Conditioner Error Code – E554
Error Code Meaning – Gas Leak Error

Outdoor LED Display Error and Check Method (12K/18K/24K)

Samsung Split System Air Conditioner Troubleshooting

1. The input voltage should be rating voltage ±10% range.
The air conditioner may not operate properly if the voltage is out of this range.
2. Is the line cable linking the indoor unit and the outdoor unit linked properly?
The indoor unit and the outdoor unit shall be linked by 5 cables.
Check the terminals if the indoor unit and outdoor unit are properly linked by the same number of cables.
Otherwise the air conditioner may not operate properly.
3. When a problem occurs due to the contents illustrated in the table below it is a symptom not related to the malfunction
of the air conditioner

Error Code Ch

Compressor Starting Delay – Crankcase heater initiated

Error Code “P0”

System down due to high temperature discharge sensor

Error Code “P1”

System down due to the high temperature of condenser

Error Code “P2”

Sump Comp Down

Error Code “P3”

System down due to the lower temperature switch detection

Error Code “P4”

System Start down due to reverse phase of the 3 phase

Error Code “P5″

System down due to frozen heat exchanger

Error Code “P6”

Error of momentary power failure (disappears when unit is off/on)

Error Code “P7”

Compressor down due to protection control of high pressure sensor

Error Code “P8”

Compressor down due to protection control of low pressure sensor

Error Code “P9”

Problem removing frost

Error Code “PA”

Compressor down due to protection control of condensation ratio

E= It displays from error 101 to error 700.
P = It displays from error 701 to error 800.
U = It displays the address of outdoor unit.
A=  It displays the address of indoor unit.

Samsung Split Air Conditioner Error Code – E101
Error Code Meaning – Communication error in indoor unit. It displays when the indoor unit receives no data from the outdoor unit.

Samsung Split Air Conditioner Error Code – E101
Error Code Meaning – Communication error in indoor unit. It displays when the indoor unit receives no data from the outdoor unit.

Samsung Split Air Conditioner Error Code – E102
Error Code Meaning –  Communication error between indoor and outdoor unit. It displays in indoor unit.

Samsung Split Air Conditioner Error Code – E121
Error Code Meaning –  Room temperature sensor of indoor unit. (Open or Short).

Samsung Split Air Conditioner Error Code – E122
Error Code Meaning –  Eva_in temperature sensor of indoor unit. (Open or Short).

Samsung Split Air Conditioner Error Code – E123
Error Code Meaning –  Eva_out temperature sensor of indoor unit. (Open or Short).

Samsung Split Air Conditioner Error Code – E124
Error Code Meaning –  Communication error between indoor and outdoor unit. It displays in outdoor unit.

Samsung Split Air Conditioner Error Code – E125
Error Code Meaning –  Mid 2 temperature sensor of indoor unit. (Open or Short).

Samsung Split Air Conditioner Error Code – E128
Error Code Meaning –  Eva_in temperature sensor is detached from eva_in pipe of indoor unit.

Samsung Split Air Conditioner Error Code – E129
Error Code Meaning –  Eva_out temperature sensor is detached from eva_out pipe of indoor unit.

Samsung Split Air Conditioner Error Code – E130
Error Code Meaning –  Eva_in and Eva_out temperature sensors are detached from eva_in and out pipes of indoor unit at the same time.

Samsung Split Air Conditioner Error Code – E137
Error Code Meaning –  VOC sensor of ERV product. (Open or Short).

Samsung Split Air Conditioner Error Code E-138 – Gas sensor of ERV product. (Open or Short)
Samsung Split Air Conditioner Error Code E-139 – CO2 sensor of ERV product. (Open or Short )
Samsung Split Air Conditioner Error Code E-151 – EEV opening error of indoor unit (2nd detection)
Samsung Split Air Conditioner Error Code E-152 – EEV closing error of indoor unit (2nd detection)
Samsung Split Air Conditioner Error Code E-153 – Floating switch error of indoor unit (2nd detection)
Samsung Split Air Conditioner Error Code E-154 – RPM feed back error of indoor unit.
Samsung Split Air Conditioner Error Code E-155 RPM – feed back error of indoor unit. (The second motor of indoor unit)
Samsung Split Air Conditioner Error Code E-161 – Mixed operation mode of indoor units. It occurs when outdoor unit is operating or going to operate in cooling mode(or heating mode) and then other indoor unit is going to operate in heating mode (or cooling mode).
Samsung Split Air Conditioner Error Code E-162 – EEPROM error of MICOM. (Physical damage)
Samsung Split Air Conditioner Error Code E-163 –  Option code error of indoor unit’s EEPROM.
Samsung Split Air Conditioner Error Code E-167 – Option setting error of indoor unit’s dip switch.
Samsung Split Air Conditioner Error Code E-170 – Temperature display setting error for USA market product. (Mixed setting with Celsius and Fahrenheit temperature)
Samsung Split Air Conditioner Error Code E-180 – Opening error of cooling and heating solenoid valve simultaneously in MCU (1st detection)
Samsung Split Air Conditioner Error Code E-181 – Opening error of cooling and heating solenoid valve simultaneously in MCU (2nd detection)
Samsung Split Air Conditioner Error Code E-185 – Cross wiring error between communication and power of indoor unit.
Samsung Split Air Conditioner Error Code E-190 – No matching between indoor unit’s address and eva_in sensor in pipe checking operation.
Samsung Split Air Conditioner Error Code E-191 – No matching between indoor unit’s address and eva_out sensor in pipe checking operation.
Samsung Split Air Conditioner Error Code E-199 – It displays when pipe checking operation is not operated.
Samsung Split Air Conditioner Error Code E-201 – Communication error between indoor and outdoor unit (Tracking failure or the setting quantity of indoor unit on outdoor unit’s PCB differs from the quantity of installed indoor unit.)
Samsung Split Air Conditioner Error Code E-202–  Communication error between indoor and outdoor unit. (After tracking is completed, and then no response from indoor unit)
Samsung Split Air Conditioner Error Code E-203 – Communication error between main and sub outdoor unit
Samsung Split Air Conditioner Error Code E-204 – The setting quantity of MCU on outdoor unit’s PCB differs from the quantity of installed MCU.
Samsung Split Air Conditioner Error Code E-210 – Communication error between MCU and outdoor unit.
Samsung Split Air Conditioner Error Code E-211 – Indoor unit’s address overlapped on the MCU.
Samsung Split Air Conditioner Error Code E-213 – No matching between installed indoor unit’s address and indoor unit’s address on the MCU.
Samsung Split Air Conditioner Error Code E-214 – Setting error of MCU’s quantity in outdoor unit’s PCB
Samsung Split Air Conditioner Error Code E-215 – Indoor unit’s address setting error on the MCU. (There is same address among the MCUs)
Samsung Split Air Conditioner Error Code E-216 – Setting error of indoor unit activating dip switch on MCU’s PCB. (The indoor unit is not connected with the MCU’s port but indoor unit activating dip switch on MCU’s PCB turns on.)
Samsung Split Air Conditioner Error Code E-217 – Setting error of indoor unit activating dip switch on MCU’s PCB. (The indoor unit is connected with the MCU’s port but indoor unit activating dip switch on MCU’s PCB turns off.)
Samsung Split Air Conditioner Error Code E-218 – Setting error of indoor unit’s quantity on MCU’s PCB. (The quantity of installed indoor units exceeds the setting number of the MCU’s PCB.)
Samsung Split Air Conditioner Error Code E-221 – Ambient air temperature sensor of outdoor unit. (Open or Short)
Samsung Split Air Conditioner Error Code E-226 – Ambient air temperature sensor is detached from outdoor unit.
Samsung Split Air Conditioner Error Code E-231 – Cond_out temperature sensor of main outdoor unit. (Open or Short)
Samsung Split Air Conditioner Error Code E-236 – Cond_out temperature sensor of the outdoor unit. (Open or Short)
Samsung Split Air Conditioner Error Code E-237 – Cond temperature sensor of outdoor unit. (Open or Short)
Samsung Split Air Conditioner Error Code E-241 – Cond_mid temperature sensor is detached from sensor hold of the pipe.
Samsung Split Air Conditioner Error Code E-246 – Cond_out 1 temperature sensor is detached from sensor hold of the pipe.
Samsung Split Air Conditioner Error Code E-251 – Discharge temperature sensor of compressor 1. (Open or Short)
Samsung Split Air Conditioner Error Code E-256 – Discharge temperature sensor of compressor 1. (Open or Short)
Samsung Split Air Conditioner Error Code E-257 – Discharge temperature sensor of compressor 2. (Open or Short)
Samsung Split Air Conditioner Error Code E-258 – Discharge temperature sensor of compressor 3. (Open or Short)
Samsung Split Air Conditioner Error Code E-261 – Discharge temperature sensor of compressor 1 is detached from the sensor hold of the pipe.
Samsung Split Air Conditioner Error Code E-262 – Discharge temperature sensor of compressor 1 is detached from the sensor hold of the pipe.
Samsung Split Air Conditioner Error Code E-263 – Discharge temperature sensor of compressor 2 is detached from the sensor hold of the pipe.
Samsung Split Air Conditioner Error Code E-264 – Discharge temperature sensor of compressor 3 compressor is detached from the sensor hold of the pipe.
Samsung Split Air Conditioner Error Code E-265 – Sump(Base) temperature sensor of main unit’s compressor is detached from the base of the compressor.
Samsung Split Air Conditioner Error Code E-266 – Sump(Base) temperature sensor of sub1 unit’s compressor is detached from the base of the compressor.
Samsung Split Air Conditioner Error Code E-267 – Sump(Base) temperature sensor of sub2 unit’s compressor is detached from the base of the compressor.
Samsung Split Air Conditioner Error Code E-268 – Sump(Base) temperature sensor of sub3 unit’s compressor is detached from the base of the compressor.
Samsung Split Air Conditioner Error Code E-269 – Suction temperature sensor is detached from the sensor hold of the pipe.
Samsung Split Air Conditioner Error Code E-271 – Sump(Base) temperature sensor of compressor 1. (Open or Short)
Samsung Split Air Conditioner Error Code E-276 – Sump(Base) temperature sensor of compressor 1. (Open or Short)
Samsung Split Air Conditioner Error Code E-277 – Sump(Base) temperature sensor of compressor 2. (Open or Short)
Samsung Split Air Conditioner Error Code E-278 – Sump(Base) temperature sensor of compressor 3. (Open or Short)
Samsung Split Air Conditioner Error Code E-291 – High pressure sensor. (Open or Short)
Samsung Split Air Conditioner Error Code E-296 – Low pressure sensor. (Open or Short)
Samsung Split Air Conditioner Error Code E-307 – Oil balance temperature sensor. (Open or Short)
Samsung Split Air Conditioner Error Code E-308 – Suction temperature sensor. (Open or Short)
Samsung Split Air Conditioner Error Code E-311 – Double tube / Liquid temperature sensor. (Open or Short)
Samsung Split Air Conditioner Error Code E-312 – Main cooling solenoid valve opening error.
Samsung Split Air Conditioner Error Code E-321 – EVI_in temperature sensor. (Open or Short)
Samsung Split Air Conditioner Error Code E-322 – EVI_out temperature sensor. (Open or Short)
Samsung Split Air Conditioner Error Code E-407 – Compressor stop by high pressure’s protection control.
Samsung Split Air Conditioner Error Code E-410 – Compressor stop by low pressure’s protection control.
Samsung Split Air Conditioner Error Code E-413 – Protection control by sump sensor.
Samsung Split Air Conditioner Error Code E-416 – Compressor stop by discharge temperature’s protection control.
Samsung Split Air Conditioner Error Code E-425  – Reverse phase or phase open. (3ø Wiring of outdoor unit, R-S-T-N)
Samsung Split Air Conditioner Error Code E-428 – Compressor stop by abnormal compression ratio.
Samsung Split Air Conditioner Error Code E-431 – Self-diagnosis of oil solenoid valve. (Open and Close error)
Samsung Split Air Conditioner Error Code E-438 – EVI EEV opening error.
Samsung Split Air Conditioner Error Code E-440 – Prohibition of heating operation when the ambient air temperature is over 30°C
Samsung Split Air Conditioner Error Code E-442 – Prohibition of refrigerant charging with heating operation when outdoor ambient air temperature is over 15°C.
Samsung Split Air Conditioner Error Code E-443 – Prohibition of operating when the high pressure of system is too low.
Samsung Split Air Conditioner Error Code E-452 – Power failure temporarily or zero crossing error.
Samsung Split Air Conditioner Error Code E-453 – Overload error of outdoor unit’s motor (by temperature).
Samsung Split Air Conditioner Error Code E-454 – RPM error of outdoor unit’s motor
Samsung Split Air Conditioner Error Code E-455 – IPM overload error of outdoor unit’s motor (by temperature)
Samsung Split Air Conditioner Error Code E-456 – Over Current error of outdoor unit’s motor
Samsung Split Air Conditioner Error Code E-457 – Backlash error of outdoor unit’s motor
Samsung Split Air Conditioner Error Code E-458 – Over current of CT sensor. (Or outdoor’s motor locking of inverter system.)
Samsung Split Air Conditioner Error Code E-461 – Low current of CT sensor. (Or compressor starting failure of inverter system.)
Samsung Split Air Conditioner Error Code E-477 –  Liquid refrigerant incoming protection error in digital / 1st fixed scroll compressor with sump temperature sensor.
Samsung Split Air Conditioner Error Code E-559 Indoor unit stop by unidentified error from outdoor units.
Samsung Split Air Conditioner Error Code E-560 Option switch setting error of outdoor unit. (napplicable option switch turns on.)
Samsung Split Air Conditioner Error Code E-561 – Fan RPM error of ERV SA (Supply air).
Samsung Split Air Conditioner Error Code E-562 – Fan RPM error of ERV RA (Return air).
Samsung Split Air Conditioner Error Code E-563 – Model mismatching of Indoor unit.
Samsung Split Air Conditioner Error Code E-601 – Communication error between remote controller and indoor unit.
Samsung Split Air Conditioner Error Code E-602 – Communication error between master and slave wired remote controller.
Samsung Split Air Conditioner Error Code E-603 – Communication packet error (Baud rate error)
Samsung Split Air Conditioner Error Code E-604 – Tracking failure error between wired remote controller and indoor unit.
Samsung Split Air Conditioner Error Code E-605 –  Communication error. (7-day scheduler  Wired remote controller or 7-day scheduler  Centralized controller)
Samsung Split Air Conditioner Error Code E-606–  COM1/COM2 communication setting error. (Wired remote controller)
Samsung Split Air Conditioner Error Code E-607 – Two masters of wired remote controllers were installed in one COM2 communication line.
Samsung Split Air Conditioner Error Code E-608 – Can’t detect ERV controller.
Samsung Split Air Conditioner Error Code E-609 – Indoor unit is not detected for synchronous control.
Samsung Split Air Conditioner Error Code E-610 – Communication error between centralized controller and interface module.
Samsung Split Air Conditioner Error Code E-611 – Communication error between DMS and centralized controller.
Samsung Split Air Conditioner Error Code E-613 – Communication error between DMS and SIM interface module.
Samsung Split Air Conditioner Error Code E-614 – Communication error between SIM and power meter.
Samsung Split Air Conditioner Error Code E-615 – Communication error between interface module and indoor unit.
Samsung Split Air Conditioner Error Code E-616 – Communication error between interface module and outdoor unit.
Samsung Split Air Conditioner Error Code E-618 – The connected indoor units to ERV exceeded 16 units.
Samsung Split Air Conditioner Error Code E-619 – Mixed temperature display setting of indoor units which was connected to MWR-WS00 (Celsius/Fahrenheit)
Samsung Split Air Conditioner Error Code E-620 – Temperature display setting error of MWR-WS00 (Celsius/Fahrenheit)
Samsung Split Air Conditioner Error Code E-621 – Option switch setting error of wired remote controller (Master/Slave)
Samsung Split Air Conditioner Error Code E-652 – Two wired remote controllers were set to the master mode. (COM 1 wiring)
Samsung Split Air Conditioner Error Code E-653 – Room temperature sensor in the wired remote controller. (Open or Short)
Samsung Split Air Conditioner Error Code E-654 – Memory data error in the wired remote controller. (MWR-WS00)
Samsung Split Air Conditioner Error Code P-701 – Floating switch error of indoor unit. (1st detection)
Samsung Split Air Conditioner Error Code P-702 – EEV closing error of indoor unit. (1st detection)
Samsung Split Air Conditioner Error Code P-703–  EEV opening error of indoor unit. (1st detection)

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