Samsung AC Error Codes – Meaning and Fixes

Samsung Electronics Co., Ltd. is a leading electronics company that has taken over the world. Offering a wide range of electronics the company is known to produce some of the best options available today. Based in South Korea this multinational electronics corporation does not need any introduction.

Offering a complete range of electronics and electrical appliances the company offers everything from calculators, televisions, and washing machines, to air conditioners and refrigerators. To help stay focused they have created subgroups to ensure no area goes unnoticed. Placing the air considers under their digital media business area. Allowing every sector of the business to bloom, rather than one taking priority over the other. A smart step that has ensured Samsung a top ranking in the world.

While Samsung is known around the world for its high standards, even its ACs sometimes face errors that need to be fixed. Start by noting down the error code, and match it using the list below. Once you have the error code you can easily work your way to the fix. To help you out we have listed down some of the most common error codes for Samsung ACs.

Samsung Split Type, Multi System and VRF System AC Error Codes and Troubleshooting;

Split Type AC

Indoor Display Error and Check Method

Error CodesProblem
E101Communication Error (Indoor Outdoor)
E102Communication Error (Indoor Outdoor)
E121ROOM TH sensor error
E122INDOOR MID, INDOOR IN PIPE-TH sensor error
E154Fan Error (Indoor)
E162EEPROM Error (Indoor)
E163Option Error
E203Time out Comm. (Inv Micom Main Micom)
E221OUT-TH(Outdoor Temperature) Sensor Error
E231CON-TH(Cond Temperature) Sensor Error
E251DIS-TH(Discharge Temperature) Sensor Error
E416DIS-TH(Discharge Temperature) Over Error
E422EEV or Valve Close error-Self diagnosis
E440Prohibit Operation Condition Error (Heating)
E441Prohibit Operation Condition Error (Cooling)
E458Fan Error(Outdoor)
E461Comp Starting Error
E462AC Input I_Limit Trip Error
E464IPM Over Current(O.C) Error
E465Comp V_limit/I_limit Error
E466DC-Link Voltage Under/Over Error
E467Comp Wire Missing Error
E468Current Sensor Error
E469DC-Link Voltage Sensor Error
E470EEPROM Data Error (no data)
E471EEPROM Data Error (Main Micom Inv Micom)
E474Heatsink Sensor Error
E483Over Voltage Protection Error
E484PFC Over Load Error
E485Input Current Sensor Error
E488AC Input Voltage Sensor Error
E500Heatsink Over Temperature Error
E554Gas Leak Error

Outdoor LED Display Error and Check Method (12K/18K/24K)-Samsung Split System Air Conditioning Outdoor LED Light Errors

Samsung AC Error mode display of outdoor unit board
Samsung Split System Air Conditioning Outdoor LED Light Errors

Multi System AC

Indoor Unit Error mode and Check method

Fault CodesMeaning
E1-01Communication error (unable to receive data). Communication cable connection.
E1-02Communication error (outdoor cannot communicate). Another indoor unit or indoor PCB.
E1-21Indoor unit room temperature sensor error (Open/Short). Room temperature sensor, indoor PCB.
E1-22Indoor unit heat exchanger in temperature sensor error (Open/Short). Heat exchanger in sensor, indoor PCB.
E1-23Indoor unit heat exchanger out temperature sensor error (Open/Short). Heat exchanger out sensor, indoor PCB.
E1-28Indoor unit heat exchanger in temperature sensor detached. Heat exchanger in sensor.
E1-29Indoor unit heat exchanger out temperature sensor detached. Heat exchanger out sensor.
E1-30Indoor unit heat exchanger in & out temperature sensor detached. Heat exchanger in and out sensor.
E1-54Indoor unit fan motor malfunction. Fan motor and cable.
E1-61More than 2 indoor units cool and heat simultaneously. Another indoor unit operation mode.
E1-62EEPROM error. Indoor PCB.
E1-63Option code setting error. Option code.
E1-85Cable miss-wiring. Cable connection (Indoor & Outdoor unit).
E2-01The number of indoor unit mismatched.Cable connection (another indoor unit & outdoor unit), SW01(outdoor).
E2-51Compressor discharge sensor error(Short/Open). Outdoor unit.
E5-59Outdoor unit error.

The error indicated on the LED display of Indoor unit

Samsung error indicated on the LED display of Indoor unit;
Samsung error indicated on the LED display of Indoor unit

VRF (DVM S)

Error code related indoor unit and Communications / Settings / HW (cont.)

Error CodesCause
E-101Indoor unit communication error. Indoor unit can not receive any data from outdoor unit
E-102Communication error between indoor unit and outdoor unit. Displayed in indoor unit
E-108Error due to repeated address setting
E-121Error on indoor temperature sensor of indoor unit
E-122Error on EVA IN sensor of indoor unit
E-123Error on EVA OUT sensor of indoor unit
E-128EVA IN temperature sensor of indoor unit is detached from EVA IN pipe
E-129EVA OUT temperature sensor of indoor unit is detached from EVA OUT pipe
E-130Heat exchanger in/out sensors of indoor unit are detached
E-135RPM feedback error of indoor unit's cleaning fan
E-149Error due to AHU master indoor unit sensor setting
E-151Error due to opened EEV of indoor unit (2nd detection)
E-152Error due to closed EEV of indoor unit (2nd detection)
E-153Error on floating switch of indoor unit (2nd detection)
E-154RPM feedback error of indoor unit
E-161Mixed operation mode error of indoor unit; When outdoor unit is getting ready to operate in cooling
E-162EEPROM error of MICOM
E-163Indoor unit's remote controller option input is Incorrect or missing
E-180Simultaneous opening of cooling/heating MCU SOL V/V (1st detection)
E-181Simultaneous opening of cooling/heating MCU SOL V/V (2nd detection)
E-185Cross wiring error between communication and power cable of indoor unit
E-186Connection error or problem on SPi
E-190No temperature changes in EVA IN during pipe inspection or changes in temperature is seen in indoor unit with wrong address
E-191No temperature changes in EVA OUT during pipe inspection or changes in temperature is seen in indoor unit with wrong address
E-198Error due to disconnected thermal fuse of indoor unit
E-201Communication error between indoor and outdoor units
E-202Communication error between indoor and outdoor units
E-203Communication error between main and sub outdoor units
E-205Communication error on all PBA within the outdoor unit C-Box, communication cable error
E-211When single indoor unit uses 2 MCU ports that are not in series.
E-212If the rotary switch (on the MCU) for address setting of the indoor unit has 3 or more of the same address
E-213When total number of indoor units assigned to MCU is same as actual number of installed indoor units but there is indoor unit that is not installed even though it is assigned on MCU
E-214When number of MCU is not set correctly on the outdoor unit or when two or more MCU was installed some of them have the same address
E-215When two different MCU’s have same address value on the rotary switch
E-216When indoor unit is not installed to a MCU port but the switch on the port is set to On.
E-217When indoor unit is connected to a MCU port but indoor unit is assigned to a MCU and the switch on the port is set to Off
E-218When there’s at least one or more actual number of indoor unit connection compared to number of indoor units assigned to MCU
E-219Error on temperature sensor located on MCU intercooler inlet
E-220Error on temperature sensor located on MCU intercooler outlet
E-221Error on outdoor temperature sensor of outdoor unit
E-231Error on COND OUT temperature sensor of main outdoor unit
E-241COND OUT sensor is detached
E-251Error on discharge temperature sensor of compressor 1
E-257Error on discharge temperature sensor of compressor 2
E-262Discharge temperature sensor of compressor 1 is detached from the sensor holder on the pipe
E-263Discharge temperature sensor of compressor 2 is detached from the sensor holder on the pipe
E-266Top sensor of compressor 1 is detached
E-267Top sensor of compressor 2 is detached
E-269Suction temperature sensor is detached from the sensor holder on the pipe
E-276Error on top sensor of compressor 1 (Short or Open)
E-277Error on top sensor of compressor 2 (Short or Open)
E-291Refrigerant leakage or error on high pressure sensor (Short or Open)
E-296Refrigerant leakage or error on low pressure sensor (Short or Open)
E-308Error on suction temperature sensor (Short or Open)
E-311Error on temperature sensor of double layer pipe/liquid pipe(sub heat exchanger) (Short or Open)
E-321Error on EVI (ESC) IN temperature sensor (Short or Open)
E-322Error on EVI (ESC) OUT temperature sensor (Short or Open)
E-323Error on suction sensor 2 (Short or Open)
E-346Error due to operation failure of Fan2
E-347Motor wire of Fan2 is not connected
E-348Lock error on Fan2 of outdoor unit
E-353Error due to overheated motor of outdoor unit's Fan2
E-355Error due to overheated IPM of Fan2
E-361Error due to operation failure of inverter compressor 2
E-364Error due to over-current of inverter compressor 2
E-365V-limit error of inverter compressor 2
E-366Error due to over voltage /low voltage of inverter PBA2
E-367Error due to unconnected wire of compressor 2
E-368Output current sensor error of inverter PBA2
E-369DC voltage sensor error of inverter PBA2
E-374Heat sink temperature sensor error of inverter PBA2
E-378Error due to overcurrent of Fan2
E-385Error due to input current of inverter 2
E-386Over-voltage/low-voltage error of Fan2
E-387Hall IC connection error of Fan2
E-389V-limit error on Fan2 of compressor
E-393Output current sensor error of Fan2
E-396DC voltage sensor error of Fan2
E-399Heat sink temperature sensor error of Fan2
E-400Error due to overheat caused by contact failure on IPM of Inverter PBA2
E-407Compressor operation stop due to high pressure protection control
E-410Compressor operation stop due to low pressure protection control or refrigerant leakage
E-416Compressor operation stop due to discharge temperature protection control
E-425Phase reversal or phase failure (3Ø outdoor unit wiring, R-S-T-N ), connection error on 3 phase input
E-428Compressor operation stop due abnormal compression ratio
E-438EVI (ESC) EEV leakage or internal leakage of intercooler or incorrect connector insertion of EVI
E-439Error due to refrigerant leakage
E-440Heating mode restriction due to high air temperature
E-441Cooling mode restriction due to low air temperature
E-442Refrigerant charing restriction in heating mode when air temperature is over 15 °C
E-443Operation prohibited due to low pressure
E-445CCH is deatched
E-446Error due to operation failure of Fan1
E-447Motor wire of Fan1 is not connected
E-448Lock error on Fan1
E-452Error due to ZPC detection circuit problem or power failure
E-453Error due to overheated motor of outdoor unit's Fan1
E-455Error due to overheated IPM of Fan1
E-461Error due to operation failure of inverter compressor 1
E-462Compressor stop due to full current control or error due to low current on CT2
E-464Error due to over-current of inverter compressor 1
E-465V-limit error of inverter compressor 1
E-466Error due to over voltage /low voltage of inveter PBA1
E-467Error due to unconnected wire of compressor 1
E-468Output current sensor error of inverter PBA1
E-469DC voltage sensor error of inver PBA1
E-474Heat sink temperature sensor error of inverter PBA1
E-478Error due to overcurrent of Fan1
E-485Error due to input current of inverter 1
E-486Error due to over voltage/low voltage of Fan
E-487Hall IC error of Fan1
E-489V-limit error on Fan1 of compressor
E-493Output current sensor error of Fan1
E-496DC voltage sensor error of Fan1
E-499Heat sink temperature sensor error of Fan1
E-500Error due to overheat caused by contact failure on IPM of Inverter PBA1
E-503Error due to alert the user to check if the service valve is closed
E-504Error due to self diagnosis of compressor operation
E-505Error due to self diagnosis of high pressure sensor
E-506Error due to self diagnosis of low pressure sensor
E-560Outdoor unit's option switch setting error
E-563Error due to module installation of indoor unit with old version
E-573Error due to using single type outdoor unit in a module installation
E-601Communication error between remote controller and the DVM Hydro unit / Hydro unit HT
E-602Communication error between master and slave remote controller
E-604Tracking error between remote controller and the DVM Hydro unit / Hydro unit HT
E-618Error due to exceeding maximum numbers of Hydro unit installation (16 units)
E-627Error due to exceeding maximum numbers of wired remote controller installation (2 units)
E-628DMS-Transmitter Communication Error
E-629DMS-DDC Communication Error
E-630ERV wire remote controller normal ventilation option set error
E-631ERVWire Remote controller auto ventilation option set error
E-632Error when input the pulse except set the value of Pulse Width by PIM
E-633Error caused by installing mixed models
E-652Two wired remote controllers have been set to Master mode (COM1 wiring)
E-653Remote controller's temperature sensor is disconnected or has problem
E-655DMS-SNET3 Error
E-656DMS-SNET3 Error
E-654Data error on remote controller (Memory read/write error)
E-701Floating switch error on the indoor unit (1st detection)
E-702Error due to closed EEV of indoor unit (1st detection)
E-703Error due to opened EEV of indoor unit (1st detection)
E-901Error on the sensor of water inlet pipe (Short or Open)
E-902Error on the sensor of water outlet pipe (Short or Open)
E-904Error on water tank (Short or open)
E-907Error due to pipe rupture protection
E-908Error due to freeze prevention (Re-operation is possible)
E-909Error due to freeze prevention (Re-operation is impossible)
E-910Water temperature sensor on water outlet pipe is detached
E-911Flow switch off error, When the switch is turned off within 10 seconds after a pump starts its operation (Re-operation is possible)
E-913Six times detection for Flow Switch Error (Re-operation is not possible)
E-914Error due to incorrect thermostat connection
E-915Error on DC fan (Non-operating)
E-917Water Tank Sensor Configutation Error
Samsung AC Error Mode Display of Indoor Unit
Samsung AC Error Mode Display of Indoor Unit

Remote Controls Buttons Meaning

Samsung Wireless Remote Control-Buttons and Display
Samsung Wireless Remote Control Buttons and Display
Samsung AC Remote Control
Samsung AC Remote Control

Samsung AC Blinking Lights

OperationDescription
Lamp off -Lamp flickering-Lamp offIndoor unit room temperature sensor error (open / short)
Lamp flickering-Lamp flickering-Lamp offIndoor unit heat exchanger temperature sensor error (open / short)
Lamp off -Lamp off -Lamp flickeringIndoor fan motor malfunction
Lamp flickering-Lamp flickering-Lamp flickeringEEPROM error
Lamp flickering-Lamp flickering-Lamp flickeringOption error
Lamp off -Lamp flickering-Lamp flickeringAbnormal communication error (Indoor - Outdoor unit)
Lamp flickering-Lamp off -Lamp flickeringOutdoor unit temperature sensor error; Outdoor temp.-sensor, Deice temp.-sensor, OLP temp.-sensor, Discharge temp.-sensor, Heatsink temp.-sensor
Error mode display of outdoor unit board
Yellow-Green-RedDescription
Lamp off-Lamp off-Lamp offPower Off / VDD NG
Lamp off-Lamp off-Lamp flickeringComp. Peak Current (O.C.)
Lamp off-Lamp off-Lamp onCommunication NG
Lamp off-Lamp flickering-Lamp offComp. Starting error
Lamp off-Lamp flickering-Lamp flickeringHeatsink sensor error
Lamp off-Lamp flickering-Lamp onNormal Operation
Lamp off-Lamp on-Lamp flickeringDC-Iink overvoltage error
Lamp off-Lamp on-Lamp on4-Way valve error
Lamp flickering-Lamp off-Lamp offHeatsink Temp. trip
Lamp flickering-Lamp off-Lamp flickeringOutdoor Sensor error(Open/Short)
Lamp flickering-Lamp off-Lamp onDischarge sensor temp. trip
Lamp flickering-Lamp flickering-Lamp offDischarge sensor error(Open/Short)
Lamp flickering-Lamp flickering-Lamp flickeringOLP sensor error(Open/Short)
Lamp flickering-Lamp flickering-Lamp onCT sensor error
Lamp flickering-Lamp on-Lamp offUnit Over Current protection
Lamp flickering-Lamp on-Lamp flickeringDeice sensor error(Open/Short)
Lamp flickering-Lamp on-Lamp onOLP sensor temp. trip
Lamp on-Lamp off-Lamp flickeringOPTION error (EEPROM)
Lamp on-Lamp off-Lamp onCompressor rotation error
Lamp on-Lamp flickering-Lamp offDC fan error (SH12BWHX only)
Lamp on-Lamp flickering-Lamp flickeringDC-Link voltage sensor error
Lamp on-Lamp flickering-Lamp onPFC OC error
Lamp on-Lamp on-Lamp offNO GAS error
Lamp on-Lamp on-Lamp flickeringAC Line zero-crossing error

Indoor and Outdoor Wiring Diagram

Samsung AC Indoor and Outdoor Wiring Diagram
Samsung AC Indoor and Outdoor Wiring Diagram

Manuals PDF

Samsung Split Type Air Conditioner Service Manual PDF

Samsung Multi Air Conditioner Service Manual PDF

DVM S Outdoor Unit Service Manual PDF

References

Samsung.com/levant/air-conditioners

Samsunghvac.com

Youtube – E201 Error Code on Previous Model FJM

Samsung User Manual AR24NSPXBWK



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