Samsung Air Conditioner Error Codes

Samsung is known for being a good quality air conditioner brand with modern aesthetics. The sleek exterior of the Samsung AC houses a complex appliance that provides cool air to your home. You may notice your unit flashing a Samsung AC error code from time to time. These error codes indicate an internal problem in your unit that needs to be addressed.

In this article, we’ll show you the complete Samsung AC error code list, and how to read these error codes to diagnose and troubleshoot any issue affecting your Samsung AC.

List of Samsung AC Error Codes

• CF: Filter cleaning reminder or filter reset indicator
• Ch: Prohibit starting during operation of the crack case heater
• CI: Auto-Clean function has been enabled
• dF: Auto-Defrost function has been enabled
• EA: Communication error between indoor unit and outdoor unit
• EC: Communication error between wired remote controller and indoor unit
• ED: Outdoor unit pipe thermistor error
• E1: Indoor unit room thermistor error
• E5: Indoor unit pipe thermistor error
• E6: Outdoor unit thermistor error
• E9: Float switch open error
• E101: Indoor unit communication error
• E102: Indoor/Outdoor unit communication time out error 60 packet over data
• E103: Communication error between indoor unit panel and master
• E105: Communication error between detection area module and indoor unit
• E106: Communication error between LCD and panel
• Rotary: Communication error between LCD outdoor unit
• E108: Error due to repeated address setting (when 2 or more devices have the same address in the network)
• E109: Communication error where indoor address is not complete.
• E121: Indoor temp. sensor (open/short error)
• E122: Error on evaporator in (EVA IN) sensor of indoor unit (open/short error)
• E123: Evaporator out (EVA OUT) Indoor Unit Sensor Error/Open
• E125: EVA_MID2 closed unit sensor short/open
• E127: [GHP-R22] Indoor temperature (suction temperature) sensor separation error
• E128: Indoor unit evaporator in (EVA IN) sensor breakaway
• E129: Indoor unit evaporator out (EVA OUT) sensor breakaway
• E130: Removing sensors evaporator and evaporator in indoor unit at the same time
• E131: Sub (Electronic) heater sensor1 error
• E132: Sub (Electronic) heater sensor2 error
• E133: Sub (Electronic) heater sensor3 error
• E134: Shutter sensor error
• E136: Shutter sensor error
• E137: VOC sensor open/short error
• E138: Gas sensor open/short error
• E139: ERV CO2 sensor open/short error
• E140: Indoor Dust sensor error
• E141: IAQ CO2 sensor open/short error
• E142: Indoor unit damp sensor open/short error
• E143: Detecting area sensor error
• E144: EVA2_IN Indoor unit's sensor short/open
• E145: EVA2_OUT Indoor unit short/open sensor
• E146: EEV input sensor short/open
• E147: Closed EVA2_IN sensor break away error
• E148: Closed EVA2_OUT sensor break away error
• E149: AHU master indoor room sensor setting error
• E151: Indoor unit EEV open failure(When 2* detection)
• E152: Indoor unit EEV close failure(When 2“ detection)
• E153: Indoor unit floating S/V error(When 2“ detection)
• E154: Indoor unit fan error
• E155: Indoor unit fan2 error
• E156: Closed unit (EEV2) open error 2.
• E157: Closed unit (EEV2) shutdown error 2.
• E158: Udoor parent process error
• E159: Udoor low run error
• E161: Mixed operation error cooling and heating
• E162: Outdoor unit EEPROM error
• E163: EEPROM option setting error
• E165: Select discharge temp protection error
• E166: Electric motor related to wind fault
• E167: Closed unit option dip S/W set failure peripheral
• E168: IAQ security S/W open error
• E169: AHU EEV fault detection error
• E174: Erv + Heat exchanger inlet temperature sensor short/open
• E175: Open indoor temperature sensor short/open error
• E177: Emergence signal error in hydro box
• E180/E181: MCU left valve cool/heat simultaneously
• E185: Misconnected power line to indoor communication line
• E186: SMPI (SPI) feedback error
• E190: When checking pipe, there is no change temperature in evaporator in (EVA IN) or change temp EVA of other indoor unit
• E192: Closed unit cover open (indoor unit switch for safety)
• E193: Closed panel zero crossing error
• E194: Closed master zero crossing fault
• E195: IAQ security S/W open error
• E198: Error due to disconnected thermal fuse of indoor unit
• E199: Error in case of no pipe check display
• E201: Communication error between indoor unit and outdoor unit (communication tracking failure after initial power supply)
• E202:  Communication error between indoor and outdoor unit (when not received in every room after completing the tracking)
• E203: Communication error between outdoor main and inverter micom (occurred after 1 minute detection in main and inverter)
• E204: After completing the monitoring 5 times, different and transmitted MCU with a set of SET MCUs
• E205: Communication error in all PBA in outdoor unit C-Box
• E206: Communication error between outdoor unit Main PBA - Sub PBA
• E206-C001: Hub PBA communication error
• E206-C002: Fan PBA communication error
• E206-C003: Inv1 PBA communication error
• E206-C004: Inv2 PBA communication error
• E211: Indoor unit linked by a discontinuous confluence kit
• E212: Closed unit linked with confluence kit and setting address more than 3 overlapped
• E213: MCU address does not match indoor unit address
• E214: MCU address does not match outdoor unit address
• E215: Rotary switch for indoor unit address in MCU was overused between MCUs
• E216: Immersion switch was in position for indoor unit setting although indoor unit is not connected
• E217: DIP switch for indoor unit setting is out of position even if indoor unit is connected
• E218: The number of indoor units in the MCU is larger than the set indoor units.
• E219: MCU intercooler inlet (short/open) error in temperature sensor located in MCU, sensor open/short
• E220: Error in temperature sensor located in MCU at MCU Intercooler output (short/open), via cooling sensor open/short
• E221: Outdoor temp sensor error (open/short error)
• E226: Temperature sensor separation error
• E231: Condenser out (COND OUT) main temperature sensor error (open/short)- Error level: More than 4.9V (-50ºC), less than 0.4V (93ºC)”
• E236: Condenser out (COND OUT) sub1 temperature sensor error (open/short)- Fault level: 4.9V (-50ºC), less than 0.4V (93ºC)
• E237: Condenser temp (COND TEMP). Sensor error (open/short error)
• E241: Condenser out (COND OUT) sensor of condenser mid (COND MID) or outdoor unit separation error
• E242: Outdoor unit heater error
• E246: Condenser out (COND OUT) 1 breakup
• E251: Inverter compressor discharge temp, sensor error (open/short error)
• E256: Fixed Comp 1 DCHRG sensor fault (open/short)- Fault detection condition: detect outdoor temperature more- Fault level: More than 4.95V (-30'c), less than 0.5V (151'c)
• E258: Fixed Comp 3 DCHRG Sensor Fault (open/hort)- Fault detection condition: Outdoor temperature detected more than -10ºC- Fault level: More than 4.95V (-30'c), more than 0.5V (151'c) ) less
• E261: Digital comp_discharge sensor separation error
• E262: FIXD comp1_discharge sensor separation error
• E263: FIXD comp2_discharge sensor separation error
• E264: FIXD comp3_discharge sensor separation error
• E265: Dimming temperature sensor separation (Main)
• E266: Dimming temperature sensor separation (Sub1)
• E267: High pressure sensor separation error
• E268: Dimming temperature sensor separation (Sub3)
• E269: Intake sensor separation
• E291: High pressure sensor error (Open/Short) Only when running Comp, detect (SHORTERROR: less than 0.4V, error detection), (OpenError: more than 4.2V, error detection)
• E296: Low pressure sensor error (Open/Short) Only when running Comp, detect (SHORTERROR: less than 0.4V, error detection), (OpenError: more than 4.7V, error detection)
• E301: High pressure sensor separation error
• E306: Low pressure sensor separation error
• E307: Oil balance sensor short/open
• E308: Suction sensor short/open
• E309: Oil balance sensor2 sensor short/open
• E310: Oil balance sensor3 sensor short/open
• E311: Double pipe sensor short/open
• E312: Main cooling left valve open error
• E313: 4-way valve operating error
• E314: Oil balance sensor4 short/open
• E315: CT1 sensor short/open
• E316: CT2 sensor short/open
• E317: CT3 sensor short/open
• E320: OLP sensor short/open
• E321: EVI input sensor short/open
• E322: EVI outlet sensor short/pen
• E323: Suction sensor 2 fault (short/open)
• E324: Outdoor fan motor current sensor short/open
• E325: Outdoor fan2 motor current sensor short/open
• E330: Outdoor plumbing input Sensor out 0 Time (TA_0)
• E331: Inlet pipe (TA_1) outdoor sensor out
• E332: Inlet pipe outdoor sensor out (TA_2)
• E333: Three times the inlet pipe outdoor sensor (TA_3)
• E334: Four times the inlet pipe sensor outdoor (TA_4)
• E335: Outdoor pipe outlet sensor out 0 time (TB_0)
• E336: Outdoor sensor out pipe outlet (TB_1)
• E337: Outdoor sensor twice pipe output (TB_2)
• E338: Outdoor sensor three times pipe outlet (TB_3)
• E339: Outdoor sensor four pipe outlets (TB_4)
• E346: Error2 due to operating failure of FAN2
• E347: Motor wire of FAN2 is not connected
• E348: Lock error on FAN2 of outdoor unit
• E353: Error due to overheated motor of outdoor unit's FAN2
• E355: Error due to overheating IPM of FAN2.
• E361: 2 CT1 inverter compressor start fault or low current
• E364: Error due to overcurrent of the inverter compressor.
• E365: V-limit fault of inverter compressor 2. 2 Inverter compressor overload stops (30A or more).
• E366: Error due to overvoltage/undervoltage of inverter PBA2. Connection voltage less than 2 DC 150V 410V inverter.
• E367: Error due to disconnected wire of compressor 2. Dependence of 2 wires or inverter compressor rotation on compressor
• E368: Output current sensor error of inverter PBA2.
• E369: DC voltage sensor inverter PBA2. 2 DC Link Inverter Sensor Error.
• E371: 2 Inverter outdoor unit EEPROM Read/Write Error (OTP error)
• E374: Heat sink temperature sensor Inverter PBA2. 2 Inverter heat sink temperature Sensor Error.
• E378: FAN2’s hall IC connection error. Open FAN2 IPM H/W OC
• E385: Error due to inverter 2 input current. 2 Inverter input current sensor error.
• E386: FAN2 overvoltage/undervoltage error
• E387: Open FAN2 hall sensor error
• E389: V-Limit error on FAN2 of the compressor
• E391: Fan controller 2 EEPROM read/write error
• E393: FAN2's output current sensor error. Fan controller 2 current sensor error.
• E396: FAN2's DC voltage sensor error. Fan controller 2 DC link sensor error.
• E399: Heat sink temperature sensor FAN2. Fan controller cooling temp temperature sensor error.
• E400: Error due to overheating due to contact error in IPM of inverter PBA2
• E401: Outdoor freezer detection 1
• E402: Outdoor freezer detection 2
• E403: Outdoor Freeze Detection 3 - Compressor down due to freeze protection control
• E404: Outdoor overload 1 protection control fault
• E405: Outdoor overload 2 protection control fault
• E406: Outdoor overload 3 protection control error
• E407: Comp down due to high pressure protection control
• E408: High pressure protection control 2
• E409: Comp down 3 due to high pressure protection control
• E410: Comp down due to low pressure sensor protection control
• E411: Comp down due to low pressure protection control
• E412: Comp down 3 due to low pressure sensor protection control
• E413: Outdoor wife down_1 protection control
• E414: Outdoor wife down_2 protection control
• E415: Outdoor wife down_3 protection control
• E416: Comp. down by the discharge temperature sensor
• E417: Outdoor durability temperature _2 protection control
• E418: Outdoor durability temperature _3 protection control
• E419: Outdoor EEV#1 boot 6. Self-check error
• E420: Outdoor EEV#2 power on 6. Self-check error
• E421: Outdoor EEV#3 power on 6. Self-check error
• E422: Outdoor EEV#1 shutdown 6. Self-check error
• E423: Outdoor EEV#2 shutdown 6. Self-check error
• E424: Outdoor EEV#3 shutdown 6. Self-check error
• E425: Power cable miss connection error
• E426: Outdoor reverse phase or missing phase detection 2 error
• E427: Outdoor reverse phase or missing phase detection 3 error
• E428: Compression ratio control error 1
• E429: Compression ratio control error 2
• E430: Comp with compression ratio control error
• E431: Oil balance valve1 error
• E432: Oil balance valve2 error
• E433: Oil balance valve 3 error
• E434: Oil balance valve opening error (DVM Plus 2, hot gas valve opening error)
• E435: Water cooling flow switch error
• E436: Protection for evaporator freeze and burst failure
• E437: Oil balance valve closing error (DVM Plus 2, hot gas valve opening error)
• E438: EVI EEV opening error
• E439: Error due to refrigerant leak
• E440: Heat mode operation prohibited when outside temperature is above 30ºC
• E441: Cooling operation restricted at outdoor temperature below cool value (default: 0°C)
• E442: Prohibit an operation during heat mode with refrigerant charge operation when the door temperature is above 15ºC
• E443: Start prohibition by refrigerant pressure error
• E445: CCH is self-contained. CCH self-check error (CCH failure or snowfall sensor MISS connection).
• E446: Error due to operation failure of FAN1. Maneuvering fan controller 1 fan failed.
• E447: The motor wire of FAN1 is not connected. Fan Controller Wiring 1-Wire USA
• E448: Lock error on fan1. Fan Controller 1 Lock error.
• E450: High temperature every time (protection control)
• E451: Low pressure switch low pressure (protection control)
• E452: Instant power off error (delete when comp. is reworked) Open air zero crossing error
• E453: Outdoor fan high temperature error
• E454: Outdoor fan RPM error (more than 2500 rpm and the difference comparing target speed with practical speed is more than 10 seconds more than 10 seconds).
• E455: Outdoor fan IPM (internal PCB module) High temperature error
• E456: Outdoor fan overcurrent fault
• E457: Outdoorfan reversed the opposite direction of the wind fault
• E458: Outdoor FAN1 error
• E459: Outdoor unit IPM fault error or CT2 via para
• E460: Outdoor unit - indoor unit communication wire miss connection (connected to power terminal)
• E461: (Inverter) Compressor starting error
• E462: Primary current over trip error
• E463: OLP temperature control comp stop or CT3 low currency
• E464: (Inverter) IPM over current(O.C)
• E465: Comp. overload stop (above 30A)
• E466: DC link voltage less than 150V, over 410V
• E467: (Inverter) compressor rotation error
• E468: (Inverter) current sensor error
• E469: (Inverter) DC LINK sensor error
• E470: Outdoor unit EEPROM read/write error
• E471: (Inverter) EEPROM read/write error
• E472: Outdoor unit zero crossing error
• E473: Inverter comp. lock error
• E474: (Inverter) Heatsink temperature over error
• E475: Outdoor FAN2 error
• E477: Control for preservation of liquid refrigerant
• E478: Error due to overcurrent of FAN1. Outdoor fan IPM H/W OC.
• E480: Fixed Comp 1 STEGE OLP Protection Check (leak for heatsink error)
• E481: Comp1 Operating Error
• E482: Comp2 Operating Error
• E483: Overvoltage of H/W DC link
• E484: PFC overload (overcurrent) error
• E485: Inverter 1. Error due to input current. Current sensor error.
• E486: Error due to overvoltage/undervoltage of fan. Open fan DC-link voltage under/over error.
• E487: Fan1's hall IC error. Open fan hall sensor error.
• E489: V-Limit error on FAN1 of the compressor
• E490: Outdoor temperature 0 degree and indoor temperature less than 0
• E491: Fan controller1 eeprom read/write error
• E492: On FAN2 IPM H/W OC
• E493: FAN1 output current sensor error. Fan controller1 Current sensor error.
• E494: Delayed time error due to Outdoor FAN2 fan error
• E495: Outdoor FAN2 overheat error
• E496: FAN1 DC voltage sensor error. Fan Controller1 DC Link Sensor Error.
• E497: Outdoor FAN2 overcurrent error
• E498: Open FAN2 IPM (internal PCB module) Overheat error
• E499: FAN1 heat sink temperature sensor error. Fan controller1 heat sink temperature sensor error.
• E500: IPM overheat error for inverter comp
• E503: Error due to warning user to check if service valve is closed
• E504: Error due to self-diagnosis of compressor operation
• E505: Error due to self-diagnosis of the high pressure sensor
• E506: Error due to self-diagnosis of the low pressure sensor
• E508: Smart install is not installed
• E512: Reserved (DMS-Snet3 Error)
• E551: Working on Ice
• E552: Low discharge pressure
• E554: Outdoor unit refrigerant full leakage (gas leak detected)
• E555: Recovery of oil
• E556: Outdoor unit capacity setup option error
• E557: DPM remote controller option error
• E559: Indoor unit operation stop due to detecting unknown error in outdoor unit
• E560: Outdoor unit switch option setting error (not implemented)
• E561: Outdoor unit h (supply air) fan rpm
• E562: Outdoor unit ra (room air) fan rpm
• E563: Indoor unit mixed installation error
• E564: IAQ clean fan error
• E565: Connection error between COMP and power wire - Power line of EVA1 Connect with power line of Comp2 or EVA2 connect with Comp1
• E570: Boot Code Check Failed
• E573: Error due to use of one type of open unit in module installation
• E574: Total leakage of refrigerant of outdoor unit 2
• E575: Total leak of refrigerant of outdoor unit 3 (Comp1, Comp2 bot detected)
• E590: Inverter EEPROM checksum error
• E601: Communication error between wired remote control < -> indoor unit/ventilation system (ERV) (When communication has stopped for 3 minutes after detecting indoor unit/ventilation system (ERV) and wired remote control)
• E602: Communication error between wired remote control < -> indoor unit/ventilation system (ERV) (When communication has stopped for 3 minutes after detecting indoor unit/ventilation system (ERV) and wired remote control)
• E603: Communication pack error (different communication type)
• E604: Tracking 10 or more errors between wired remote control < -> indoor unit/ventilation system (ERV)
• E605: 7 Day Timer <-> Tel LCD, CAUR communication error
• E606: Wired remote control is connected to indoor unit COM1 (F1,F2) terminal
• E607: Multiple wired remote controls are both set as masters in one communication line (This is not possible to detect if the communication polarity is connected in reversed polarity.)
• E608: Ventilation system (ERV) is not installed incase of outside gearing.
• E609: Indoor unit is not installed in case of outside gearing (when the indoor unit is not detected after outside gearing option setting and tracking are finished).
• E610: CAUR <-> transmitter communication error
• E611: DMS <-> CAUR communication error
• E612: DMS <-> peak transmitter communication error
• E613: DMS <-> PIM/SIM transmitter communication error
• E614: Electricity system quantity <-> PIM/SIM transmitter communication error
• E615: Transmitter <-> indoor unit communication error (after full transmitter monitoring, some indoor units cannot communicate for 2 minutes.)
• E616: Transmitter <-> outdoor unit communication error
• E617: Peak power transmitter <-> demand controller communication error, demand transmitter<-> electricity system communication error amount
• E618: Exceeded maximum no. of installation for indoor unit/ventilation system (ERV) (16 equipment devices)
• E619: Mixed installation error for °C/°F indoor unit
• E620: Wired remote control °C/°F setting error
• E621: This error occurs when the option settings of the master and slave wired remote controls are different from each other.
• E622: Select demand controller / electrical system fault type
• E623: Requestor PT/CT ratio set error
• E624: Requestor data get error from electricity quantity
• E625: DMS communication error
• E626: ERV jumper remote controller (AWR-WE00) ERV separate installation error (not connecting a closed unit and ERV only installed)
• E627: Slave wired remote control installation error (when two slave wired remote controls are installed)
• E628: DMS <-> transmitter communication error
• E629: DMS <-> DDC communication error
• E630: Normal operation option setting error (when normal operation is selected with the wired remote control for a ventilation system (ERV) that does not support the normal operation option)
• E631: Automatic operation option setting error (when automatic operation is selected with the wired remote control for a ventilation system (ERV) that does not support the automatic operation option)
• E632: Error1 when pulse input except setting value of pulse width by PIM. Less than 20ms, 2. More than 400ms, 3. Set pulse width range, 4. Bag repeated for 3 minutes
• E652: Com 1 Dual Master setup communication error
• E653: Temperature sensor open/short error
• E654: Damper error (when there is no input for 100 seconds during damper output)
• E655: Reserved (DMS-Snet3 Error)
• E656: Reserved (DMS-Snet3error)
• E660: Error of inverter boot code
• E702: Indoor EEV 1st closing
• E703: Closed EEV opening 1.
• E720: Outdoor EEV#1 power on self check fails every time
• E721: Outdoor EEV#2 power on self check error
• E722: Outdoor EEV#3 power on self check fails every time
• E723: Outdoor EEV#1 shutdown self check every time
• E724: Outdoor EEV#2 shutdown self check every time
• E725: Outdoor EEV#3 shutdown self check every time
• E768: Reserved (DMS-Snet3)
• E804: [GHP-R410A] Communication error: between outdoor unit
• E805: [GHP-R410A] Error setting outdoor unit organization
• E806: [GHP-R410A] Remocon sensor connection/short circuit
• E807: [GHP-R410A] Open liquid pipe sensor connection/short circuit
• E808: [GHP -R410A] Outdoor unit - subcooling heat exchanger input temp thermistor connection/short circuit
• E809: [GHP-R410A] Comp overheating
• E811: [GHP-R410A] Refrigerant high pressure switch connection
• E812: [GHP-R410A] Gas EEV output error
• E813: [GHP-R410A] Refrigerant low pressure sensor error 2
• E814: [GHP-R410A] Refrigerant high pressure sensor error 1
• E815: [GHP-R410A] Refrigerant high pressure sensor error 2 (value of high pressure sensor lower than standard low pressure)
• E816: [GHP-R410A] Water pump operation error
• E817: [GHP-R410A] Water pump A series of cycle errors
• E818: [GHP-R410A] IPM (outdoor unit fan operating driver) error
• E819: [GHP-R410A] Outdoor heat exchange FAN1 operation malfunction
• E820: [GHP-R410A] Outdoor heat exchange FAN2 operation error
• E821: [GHP-R410A] Outdoor heat exchange FAN3 operation malfunction
• E822: [GHP-R410A] Outdoor heat exchange FAN1 A series of speed error
• E823: [GHP-R410A] Outdoor heat exchange FAN2 A Series of revolute errors
• E824: [GHP-R410A] Outdoor heat exchange FAN3 A Series of revolute errors
• E825: [GHP -R410A] Outdoor unit - heat exchange fan error
• E826: [GHP -R410A] Outdoor unit - accumulated exit temp thermistor 1 disconnect/short circuit
• E827: [GHP -R410A] Open unit - accumulated exit temp thermistor 2 disconnect/short circuit
• E828: [GHP -R410A] Open unit - refrigerant lower pressure switch connection
• E829: [GHP-R410A] Refrigerant low pressure error
• E830: [GHP-R410A] Three-phase fault
• E831: [GHP-R410A] One phase power part fault
• E832: [GHP -R410A] Main-sub micom program version unique
• E833: [GHP-R410A] Via indoor unit connection number
• E834: [GHP-R410A] Via indoor unit connection capacity
• E835: [GHP-R410A] Outdoor indoor connection match
• E836: [GHP -R410A] Outdoor unit -goal control
• E837: [GHP-R410A] Refrigerant high pressure error 1
• E838: [GHP-R410A] Refrigerant high pressure fault 2
• E841: [GHP-R410A] Outdoor unit gas Temp thermistor short/disconnect
• E843: [GHP-R410A] Engine coolant temperature sensor short/disconnect
• E844: [GHP-R410A] Motor discharge temperature sensor connection
• E845: [GHP-R410A] Engine fluid pressure error
• E846: [GHP-R410A] Engine fluid pressure switch disconnected
• E847: [GHP-R410A] Engine on revolute 1
• E848: [GHP-R410A] Engine on revolute 2
• E849: [GHP-R410A] Startup error
• E850: [GHP-R410A] Motor A series of speed control errors
• E851: [GHP-R410A] Engine stall
• E855: [GHP-R410A] Motor discharge temperature error
• E856: [GHP-R410A] Engine coolant temperature overheat
• E857: [GHP-R410A] Motor operation error
• E858: [GHP-R410A] Engine cooling
• E859: [GHP-R410A] Engine underrun revolution
• E860: [GHP-R410A] Engine A series of revolute haunting errors
• E861: [GHP-R410A] Compressor discharge temperature overheat
• E862: [GHP-R410A] Compressor discharge temperature sensor1 short/disconnect
• E863: [GHP-R410A] Compressor discharge temperature sensor2 short/disconnect
• E864: [GHP-R410A] Compressor discharge temperature sensor3 short/disconnect
• E865: [GHP-R410A] Compressor discharge temperature sensor4 short/connection
• E866: [GHP-R410A] Compressor NHALE temperature sensor1 short/disconnect
• E867: [GHP-R410A] Compressor suction temperature sensor2 short/connection
• E868: [GHP -R22]  Open unit - accumulation inlet temperature sensor short/disconnect
• E869: [GHP -R22] Open unit - refrigerants gas pipe temperature sensor short/disconnect
• E870: [GHP -R22] Open unit - comp lubricating oil shortage error
• E871: [GHP -R22] Open unit - refrigerant overcharge error
• E872: [GHP -R22] Open unit - compressor induction temperature error
• E873: [GHP-R22] Engine cooling system error
• E874: [GHP-R22] Engine oil system error
• E875: [GHP-R22] Motor power system error
• E876: [GHP-R22] Engine run/control system error
• E880: [GHP -R410A] Open unit - engine coolant low
• E881: [GHP -R410A] Open unit - engine oil leak
• E882: [GHP -R410A] Open unit - lack of comp oil
• E883: [GHP -R410A] Outdoor unit - start trans voltage short
• E901: Water inlet sensor (TW1) short/open
• E902: Water outlet sensor (TW3) short/open
• E903: PHE sensor (TW2) Short / open
• E904: Water tank sensor short / open
• E905: Sun sensor short/open
• E911: Stream SWITCH open error
• E912: Flow SWITCH shutdown error
• P701: Indoor unit floating S/V error (When 1“ detection)
• P702: Indoor unit EEV close failure (When 1“ detection)
• P703: Indoor unit EEV open failure (When 1“ detection)
• Filter LED flickering (1Hz period): Outdoor pipe temperature sensor abnormal‍‍
• Reservation LED flickering(1Hz period): Indoor temperature sensor abnormal
• Operation LED and reservation LED flickering (1Hz period): Indoor pipe temperature sensor abnormal
• Operation LED and filter LED flickering (1 Hz period): Outdoor temperature sensor abnormal
• Reservation LED filter LED alternating flickering (1Hz period): Float switch open abnormal
• Reservation LED and filter LED flickering (1Hz period): Indoor and outdoor communication abnormal‍
• Operation LED and reservation LED alternating flickering (1Hz period): Wired remote controller communication abnormal

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Is your problem not in this list? Maybe it's a common aircon problem we've already encountered. Read more about it here.

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Also read: Samsung Mini Split Aircon Troubleshooting

If your Samsung air conditioner continues to have issues, then you may need to book an appointment with a professional aircon servicing company or an authorized Samsung service center.