Samsung Split Type, Multi System and VRF System AC Error Codes and Troubleshooting;
Samsung Split Type AC Error Codes
Indoor Display Error and Check Method;
| Error Codes | Problem |
|---|---|
| E101 | Communication Error (Indoor Outdoor) |
| E102 | Communication Error (Indoor Outdoor) |
| E121 | ROOM TH sensor error |
| E122 | INDOOR MID, INDOOR IN PIPE-TH sensor error |
| E154 | Fan Error (Indoor) |
| E162 | EEPROM Error (Indoor) |
| E163 | Option Error |
| E203 | Time out Comm. (Inv Micom Main Micom) |
| E221 | OUT-TH(Outdoor Temperature) Sensor Error |
| E231 | CON-TH(Cond Temperature) Sensor Error |
| E251 | DIS-TH(Discharge Temperature) Sensor Error |
| E416 | DIS-TH(Discharge Temperature) Over Error |
| E422 | EEV or Valve Close error-Self diagnosis |
| E440 | Prohibit Operation Condition Error (Heating) |
| E441 | Prohibit Operation Condition Error (Cooling) |
| E458 | Fan Error(Outdoor) |
| E461 | Comp Starting Error |
| E462 | AC Input I_Limit Trip Error |
| E464 | IPM Over Current(O.C) Error |
| E465 | Comp V_limit/I_limit Error |
| E466 | DC-Link Voltage Under/Over Error |
| E467 | Comp Wire Missing Error |
| E468 | Current Sensor Error |
| E469 | DC-Link Voltage Sensor Error |
| E470 | EEPROM Data Error (no data) |
| E471 | EEPROM Data Error (Main Micom Inv Micom) |
| E474 | Heatsink Sensor Error |
| E483 | Over Voltage Protection Error |
| E484 | PFC Over Load Error |
| E485 | Input Current Sensor Error |
| E488 | AC Input Voltage Sensor Error |
| E500 | Heatsink Over Temperature Error |
| E554 | Gas Leak Error |
Outdoor LED Display Error and Check Method (12K/18K/24K)-Samsung Split System Air Conditioning Outdoor LED Light Errors
Samsung Multi System AC Error Codes
Indoor Unit Error mode and check method;
Display: E1 ↔ 01
Explanation: Communication error (unable to receive data)
Main checking Point/Remark: Communication cable connection
Display: E1 ↔ 02
Explanation: Communication error (outdoor cannot communicate)
Main checking Point/Remark: Another indoor unit or indoor PCB
Display: E1 ↔ 21
Explanation: Indoor unit room temperature sensor error (Open/Short)
Main checking Point/Remark: Room temperature sensor, indoor PCB
Display: E1 ↔ 22
Explanation: Indoor unit heat exchanger in temperature sensor error (Open/Short)
Main checking Point/Remark: Heat exchanger in sensor, indoor PCB
Display: E1 ↔ 23
Explanation: Indoor unit heat exchanger out temperature sensor error (Open/Short)
Main checking Point/Remark: Heat exchanger out sensor, indoor PCB
Display: E1 ↔ 28
Explanation: Indoor unit heat exchanger in temperature sensor detached
Main checking Point/Remark: Heat exchanger in sensor
Display: E1 ↔ 029
Explanation: Indoor unit heat exchanger out temperature sensor detached
Main checking Point/Remark: Heat exchanger out sensor
Display: E1 ↔ 30
Explanation: Indoor unit heat exchanger in & out temperature sensor detached
Main checking Point/Remark: Heat exchanger in & out sensor
Display: E1 ↔ 54
Explanation: Indoor unit fan motor malfunction
Main checking Point/Remark: Fan motor and cable
Display: E1 ↔ 61
Explanation: More than 2 indoor units cool and heat simultaneously
Main checking Point/Remark: Another indoor unit operation mode
Display: E1 ↔ 62
Explanation: EEPROM error
Main checking Point/Remark: Indoor PCB
Display: E1 ↔ 63
Explanation: Option code setting error
Main checking Point/Remark: Option code
Display: E1 ↔ 85
Explanation: Cable miss-wiring
Main checking Point/Remark: Cable connection (Indoor & Outdoor unit)
Display: E2 ↔ 01
Explanation: The number of indoor unit mismatched
Main checking Point/Remark: Cable connection (another indoor unit & outdoor unit), SW01(outdoor)
Display: E2 ↔ 51
Explanation: Compressor discharge sensor error(Short/Open)
Main checking Point/Remark: Outdoor unit
Display: E5 ↔ 59
Explanation: Outdoor unit error
Main checking Point/Remark: Outdoor unit (Error code)
The error indicated on the LED display of Indoor unit;
Outdoor Unit Error mode and check method;
Display: E1 ↔ 01
Explanation: Communication error (indoor unable to receive data)
Main checking Point: Communication cable connection
Display: E1 ↔ 02
Explanation: Communication error (outdoor unable to communicate)
Main checking Point: Indoor unit
Display: E1 ↔ 21
Explanation: Indoor unit room temperature sensor error (Open/Short)
Main checking Point: Indoor unit
Display: E1 ↔ 22
Explanation: Indoor unit heat exchanger in temperature sensor error (Open/Short)
Main checking Point: Indoor unit
Display: E1 ↔ 23
Explanation: Indoor unit heat exchanger out temperature sensor error (Open/Short)
Main checking Point: Indoor unit
Display: E1 ↔ 28
Explanation: Indoor unit sensor error – Evaporator pipe in sensor detached
Main checking Point: Indoor unit
Display: E1 ↔ 29
Explanation: Indoor unit sensor error – Evaporator pipe out sensor detached
Main checking Point: Indoor unit
Display: E1 ↔ 30
Explanation: Indoor unit heat exchanger in & out temperature sensor detached
Main checking Point: Indoor unit
Display: E1 ↔ 61
Explanation: More than 2 indoor units cool and heat simultaneously
Main checking Point: Indoor unit operation mode
Display: E2 ↔ 01
Explanation: The number of indoor unit mismatched
Main checking Point: Communication wiring
Display: E2 ↔ 02
Explanation: Communication error (outdoor unable to receive data)
Main checking Point: Communication wiring
Display: E2 ↔ 03
Explanation: Communication error between 2 microcontroller on the outdoor PCB
Main checking Point: Outdoor unit PCB
Display: E2 ↔ 37
Explanation: Condenser temperature sensor error (Short/Open)
Main checking Point: Temperature sensor
Display: E2 ↔ 46
Explanation: Condenser temperature sensor detached
Main checking Point: Temperature sensor
Display: E2 ↔ 60
Explanation: Compressor discharge sensor error (Short/Open)
Main checking Point: Temperature sensor
Display: E2 ↔ 61
Explanation: Compressor discharge sensor detached
Main checking Point: Temperature sensor
Display: E3 ↔ 20
Explanation: Compressor OLP sensor error (Short/Open)
Main checking Point: Temperature sensor
Display: E4 ↔ 01
Explanation: Indoor unit heat exchanger freezing and compressor stop (cooling mode)
Main checking Point: Check pipe matching also (indoor-outdoor)
Display: E4 ↔ 03
Explanation: Outdoor unit overload and compressor stop (protection control in heating mode)
Main checking Point: Check pipe matching also (indoor-outdoor)
Display: E4 ↔ 16
Explanation: Outdoor unit high discharge temperature and compressor stop
Main checking Point: Check pipe matching (indoor-outdoor)
Display: E4 ↔ 19
Explanation: Outdoor unit EEV open error (self diagnosis)
Main checking Point: EEV
Display: E4 ↔ 22
Explanation: Outdoor unit EEV close error (self diagnosis)
Main checking Point: EEV
Display: E4 ↔ 40
Explanation: High temperature (over 30˚C) of outdoor as heating mode
Main checking Point: Operation mode
Display: E4 ↔ 41
Explanation: Low temperature (under -5˚C) of indoor as cooling mode
Main checking Point: Operation mode
Display: E4 ↔ 60
Explanation: Wrong connection between communication and power cable
Main checking Point: Wiring indoor and outdoor
Display: E4 ↔ 61
Explanation: Inverter Compressor starting failure (5 times)
Main checking Point: Service valve, EEV, Compressor terminal, Compressor wire, Outdoor controller
Display: E4 ↔ 62
Explanation: Compressor trip by input current limit control
Main checking Point: EEV, Gas over charge, Outdoor controller
Display: E4 ↔ 63
Explanation: Compressor trip by OLP temperature limit control
Main checking Point: Outdoor fan, Compressor, Outdoor controller
Display: E4 ↔ 64
Explanation: Compressor peak current protection
Main checking Point: Outdoor fan, Compressor, Compressor wire, Outdoor controller
Display: E4 ↔ 65
Explanation: Compressor overload protection by current
Main checking Point: Outdoor fan, EEV, Service valve, Outdoor controller
Display: E4 ↔ 66
Explanation: DC-link voltage error (under 150V or over 410V)
Main checking Point: Power voltage, Outdoor controller
Display: E4 ↔ 67
Explanation: Compressor rotation error
Main checking Point: Compressor terminal, Compressor wire, Outdoor controller
Display: E4 ↔ 68
Explanation: Current sensor error
Main checking Point: Outdoor controller
Display: E4 ↔ 69
Explanation: DC-link voltage sensor error
Main checking Point: Outdoor controller
Display: E4 ↔ 70
Explanation: Compressor overload protection
Main checking Point: Outdoor fan, EEV, Service valve, Outdoor controller
Display: E4 ↔ 71
Explanation: EEPROM error
Main checking Point: Outdoor controller
Display: E4 ↔ 72
Explanation: AC line zero-crossing detection circuit error
Main checking Point: Outdoor controller, Terminal Block
Display: E5 ↔ 54
Explanation: NO GAS error (self diagnosis)
Main checking Point: Piping (gas leak)
Samsung VRF (DVM S) System AC Error Codes
Error code related indoor unit;
- E-101: Indoor unit communication error. Indoor unit can not receive any data from outdoor unit.
- E-102: Communication error between indoor unit and outdoor unit. Displayed in indoor unit.
- E-108: Error due to repeated address setting
- E-121: Error on indoor temperature sensor of indoor unit
- E-122: Error on EVA IN sensor of indoor unit
- E-123: Error on EVA OUT sensor of indoor unit
- E-128: EVA IN temperature sensor of indoor unit is detached from EVA IN pipe
- E-129: EVA OUT temperature sensor of indoor unit is detached from EVA OUT pipe
- E-130: Heat exchanger in/out sensors of indoor unit are detached
- E-135: RPM feedback error of indoor unit’s cleaning fan
- E-149: Error due to AHU master indoor unit sensor setting.
- E-151: Error due to opened EEV of indoor unit (2nd detection)
- E-152: Error due to closed EEV of indoor unit (2nd detection)
- E-153: Error on floating switch of indoor unit (2nd detection)
- E-154: RPM feedback error of indoor unit
- E-161: Mixed operation mode error of indoor unit; When outdoor unit is getting ready to operate in cooling
- E-162: EEPROM error of MICOM
- E-163: Indoor unit’s remote controller option input is Incorrect or missing.
- E-180: Simultaneous opening of cooling/heating MCU SOL V/V (1st detection)
- E-181: Simultaneous opening of cooling/heating MCU SOL V/V (2nd detection)
- E-185: Cross wiring error between communication and power cable of indoor unit
- E-186: Connection error or problem on SPi
- E-190: No temperature changes in EVA IN during pipe inspection or changes in temperature is seen in indoor unit with wrong address
- E-191: No temperature changes in EVA OUT during pipe inspection or changes in temperature is seen in indoor unit with wrong address
- E-198: Error due to disconnected thermal fuse of indoor unit
Error code related to the Communications / Settings / HW (cont.);
- E-201: Communication error between indoor and outdoor units
- E-202: Communication error between indoor and outdoor units
- E-203: Communication error between main and sub outdoor units
- E-205: Communication error on all PBA within the outdoor unit C-Box, communication cable error
- E-211: When single indoor unit uses 2 MCU ports that are not in series.
- E-212: If the rotary switch (on the MCU) for address setting of the indoor unit has 3 or more of the same address
- E-213: When 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-214: When 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-215: When two different MCU’s have same address value on the rotary switch
- E-216: When indoor unit is not installed to a MCU port but the switch on the port is set to On.
- E-217: hen 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-218: When there’s at least one or more actual number of indoor unit connection compared to number of indoor units assigned to MCU
- E-219: Error on temperature sensor located on MCU intercooler inlet
- E-220: Error on temperature sensor located on MCU intercooler outlet
- E-221: Error on outdoor temperature sensor of outdoor unit
- E-231: Error on COND OUT temperature sensor of main outdoor unit
- E-241: COND OUT sensor is detached
- E-251: Error on discharge temperature sensor of compressor 1
- E-257: Error on discharge temperature sensor of compressor 2
- E-262: Discharge temperature sensor of compressor 1 is detached from the sensor holder on the pipe
- E-263: Discharge temperature sensor of compressor 2 is detached from the sensor holder on the pipe
- E-266: Top sensor of compressor 1 is detached
- E-267: Top sensor of compressor 2 is detached
- E-269: Suction temperature sensor is detached from the sensor holder on the pipe
- E-276: Error on top sensor of compressor 1 (Short or Open)
- E-277: Error on top sensor of compressor 2 (Short or Open)
- E-291: Refrigerant leakage or error on high pressure sensor (Short or Open)
- E-296: Refrigerant leakage or error on low pressure sensor (Short or Open)
- E-308: Error on suction temperature sensor (Short or Open)
- E-311: Error on temperature sensor of double layer pipe/liquid pipe(sub heat exchanger) (Short or Open)
- E-321: Error on EVI (ESC) IN temperature sensor (Short or Open)
- E-322: Error on EVI (ESC) OUT temperature sensor (Short or Open)
- E-323: Error on suction sensor 2 (Short or Open)
- E-346: Error due to operation failure of Fan2
- E-347: Motor wire of Fan2 is not connected
- E-348: Lock error on Fan2 of outdoor unit
- E-353: Error due to overheated motor of outdoor unit’s Fan2
- E-355: Error due to overheated IPM of Fan2
- E-361: Error due to operation failure of inverter compressor 2
- E-364: Error due to over-current of inverter compressor 2
- E-365: V-limit error of inverter compressor 2
- E-366: Error due to over voltage /low voltage of inverter PBA2
- E-367: Error due to unconnected wire of compressor 2
- E-368: Output current sensor error of inverter PBA2
- E-369: DC voltage sensor error of inverter PBA2
- E-374: Heat sink temperature sensor error of inverter PBA2
- E-378: Error due to overcurrent of Fan2
- E-385: Error due to input current of inverter 2
- E-386: Over-voltage/low-voltage error of Fan2
- E-387: Hall IC connection error of Fan2
- E-389: V-limit error on Fan2 of compressor
- E-393: Output current sensor error of Fan2
- E-396: DC voltage sensor error of Fan2
- E-399: Heat sink temperature sensor error of Fan2
- E-400: Error due to overheat caused by contact failure on IPM of Inverter PBA2
- E-407: Compressor operation stop due to high pressure protection control
- E-410: Compressor operation stop due to low pressure protection control or refrigerant leakage
- E-416: Compressor operation stop due to discharge temperature protection control
- E-425: Phase reversal or phase failure (3Ø outdoor unit wiring, R-S-T-N ), connection error on 3 phase input
- E-428: Compressor operation stop due abnormal compression ratio
- E-438: EVI (ESC) EEV leakage or internal leakage of intercooler or incorrect connector insertion of EVI
- E-439: Error due to refrigerant leakage
- E-440: Heating mode restriction due to high air temperature
- E-441: Cooling mode restriction due to low air temperature
- E-442: Refrigerant charing restriction in heating mode when air temperature is over 15 °C
- E-443: Operation prohibited due to low pressure
- E-445: CCH is deatched
- E-446: Error due to operation failure of Fan1
- E-447: Motor wire of Fan1 is not connected
- E-448: Lock error on Fan1
- E-452: Error due to ZPC detection circuit problem or power failure
- E-453: Error due to overheated motor of outdoor unit’s Fan1
- E-455: Error due to overheated IPM of Fan1
- E-461: Error due to operation failure of inverter compressor 1
- E-462: Compressor stop due to full current control or error due to low current on CT2
- E-464: Error due to over-current of inverter compressor 1
- E-465: V-limit error of inverter compressor 1
- E-466: Error due to over voltage /low voltage of inveter PBA1
- E-467: Error due to unconnected wire of compressor 1
- E-468: Output current sensor error of inverter PBA1
- E-469: DC voltage sensor error of inver PBA1
- E-474: Heat sink temperature sensor error of inverter PBA1
- E-478: Error due to overcurrent of Fan1
- E-485: Error due to input current of inverter 1
- E-486: Error due to over voltage/low voltage of Fan
- E-487: Hall IC error of Fan1
- E-489: V-limit error on Fan1 of compressor
- E-493: Output current sensor error of Fan1
- E-496: DC voltage sensor error of Fan1
- E-499: Heat sink temperature sensor error of Fan1
- E-500: Error due to overheat caused by contact failure on IPM of Inverter PBA1
- E-503: Error due to alert the user to check if the service valve is closed
- E-504: Error due to self diagnosis of compressor operation
- E-505: Error due to self diagnosis of high pressure sensor
- E-506: Error due to self diagnosis of low pressure sensor
- E-560: Outdoor unit’s option switch setting error (when iinappropriate option switch is on)
- E-563: Error due to module installation of indoor unit with old version (Micom version needs to be checked)
- E-573: Error due to using single type outdoor unit in a module installation
- E-601: Communication error between remote controller and the DVM Hydro unit / Hydro unit HT
- E-602: Communication error between master and slave remote controller
- E-604: Tracking error between remote controller and the DVM Hydro unit / Hydro unit HT
- E-618: Error due to exceeding maximum numbers of Hydro unit installation (16 units)
- E-627: Error due to exceeding maximum numbers of wired remote controller installation (2 units)
- E-628: DMS↔Transmitter Communication Error
- E-629: DMS↔DDC Communication Error
- E-630: ERV wire remote controller normal ventilation option set error
- E-631: ERVWire Remote controller auto ventilation option set error
- E-632: Error when input the pulse except set the value of Pulse Width by PIM
- E-633: Error caused by installing mixed models
- E-652: Two wired remote controllers have been set to Master mode (COM1 wiring)
- E-653: Remote controller’s temperature sensor is disconnected or has problem
- E-655: DMS-SNET3 Error
- E-656: DMS-SNET3 Error
- E-654: Data error on remote controller (Memory read/write error)
- E-701: Floating switch error on the indoor unit (1st detection)
- E-702: Error due to closed EEV of indoor unit (1st detection)
- E-703: Error due to opened EEV of indoor unit (1st detection)
- E-901: Error on the sensor of water inlet pipe (Short or Open)
- E-902: Error on the sensor of water outlet pipe (Short or Open)
- E-904: Error on water tank (Short or open)
- E-907: Error due to pipe rupture protection
- E-908: Error due to freeze prevention (Re-operation is possible)
- E-909: Error due to freeze prevention (Re-operation is impossible)
- E-910: Water temperature sensor on water outlet pipe is detached
- E-911: Flow switch off error, When the switch is turned off within 10 seconds after a pump starts its operation (Re-operation is possible)
- E-913: Six times detection for Flow Switch Error (Re-operation is not possible)
- E-914: Error due to incorrect thermostat connection
- E-915: Error on DC fan (Non-operating)
- E-917: Water Tank Sensor Configutation Error
- UP: Trial operation incompleted (UnPrepared) – It will be cleared when trial operation was executed for 1 hour or when automatic inspection is completed
Samsung AC Troubleshooting
Trouble: The operation is not done
Cause and reason:
- Is the power off or the power unplugged?
- Does it stop because it is the completion time?
- Unplug and plug again the power source for 2 minutes.
Trouble: The wind comes out but the heating/cooling is not performed.
Cause and reason:
- Is the filter clogged with dust or dirty?
- Is there any direct light on the outdoor unit or any obstacle against it?
- Is the selected temperature too high? Lower the selected temperature lower than the current one (during cooling).
- Is the selected temperature too low? Raise the desired temperature than the current one? (during heating)
- Is the “Fan only Mode” operation?
Trouble: The remote control does not operate
Cause and reason:
- Is the battery run out?
- Is the battery inserted in the wrong way(+, -)?
- Is the detection part of the indoor unit blocked?
- Does it interfered with the radio of neon sign?
Trouble: The wind volume is not adjusted
Cause and reason:
- Is the operation selected among one of Auto / Dry / Turbo / Sleeping?
- The temperature setting is not required since the wind volume set automatically.
- Check again at the state of Cooling / Fan only / Heating.
Trouble: The temperature is not set
Cause and reason:
- Is the operation selected among the Dry / Turbo / Sleeping / Fan only Mode. Since the temperature is automatically set, the temperature setting is not required.
- Check again at the cooling / heating state.
- The standard temperature ±2˚C during the automatic operation
Trouble: The operation lamp continues to be flickering
Cause and reason:
- Push the Operation / Stop button.
- Unplug and plug the power source.
Trouble: The immediate operation starts without control of remote control when plugged
Cause and reason: It is the case that the auto restart function works. Auto restart function is the convenient function where the operation state is memorized in the Memory IC during the blackout and the operation restarts when the power comes back
Samsung Air Conditioner Blinking Lights
| Error mode display of indoor unit | |
| Operation-Timer-Turbo Lamp | Description |
| Lamp off -Lamp flickering-Lamp off | Indoor unit room temperature sensor error (open / short) |
| Lamp flickering-Lamp flickering-Lamp off | Indoor unit heat exchanger temperature sensor error (open / short) |
| Lamp off -Lamp off -Lamp flickering | Indoor fan motor malfunction |
| Lamp flickering-Lamp flickering-Lamp flickering | EEPROM error |
| Lamp flickering-Lamp flickering-Lamp flickering | Option error |
| Lamp off -Lamp flickering-Lamp flickering | Abnormal communication error (Indoor - Outdoor unit) |
| Lamp flickering-Lamp off -Lamp flickering | Outdoor 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-Red | Description |
| Lamp off-Lamp off-Lamp off | Power Off / VDD NG |
| Lamp off-Lamp off-Lamp flickering | Comp. Peak Current (O.C.) |
| Lamp off-Lamp off-Lamp on | Communication NG |
| Lamp off-Lamp flickering-Lamp off | Comp. Starting error |
| Lamp off-Lamp flickering-Lamp flickering | Heatsink sensor error |
| Lamp off-Lamp flickering-Lamp on | Normal Operation |
| Lamp off-Lamp on-Lamp flickering | DC-Iink overvoltage error |
| Lamp off-Lamp on-Lamp on | 4-Way valve error |
| Lamp flickering-Lamp off-Lamp off | Heatsink Temp. trip |
| Lamp flickering-Lamp off-Lamp flickering | Outdoor Sensor error(Open/Short) |
| Lamp flickering-Lamp off-Lamp on | Discharge sensor temp. trip |
| Lamp flickering-Lamp flickering-Lamp off | Discharge sensor error(Open/Short) |
| Lamp flickering-Lamp flickering-Lamp flickering | OLP sensor error(Open/Short) |
| Lamp flickering-Lamp flickering-Lamp on | CT sensor error |
| Lamp flickering-Lamp on-Lamp off | Unit Over Current protection |
| Lamp flickering-Lamp on-Lamp flickering | Deice sensor error(Open/Short) |
| Lamp flickering-Lamp on-Lamp on | OLP sensor temp. trip |
| Lamp on-Lamp off-Lamp flickering | OPTION error (EEPROM) |
| Lamp on-Lamp off-Lamp on | Compressor rotation error |
| Lamp on-Lamp flickering-Lamp off | DC fan error (SH12BWHX only) |
| Lamp on-Lamp flickering-Lamp flickering | DC-Link voltage sensor error |
| Lamp on-Lamp flickering-Lamp on | PFC OC error |
| Lamp on-Lamp on-Lamp off | NO GAS error |
| Lamp on-Lamp on-Lamp flickering | AC Line zero-crossing error |
Samsung Split Type Air Conditioner Service Manual PDF
Samsung Multi Air Conditioner Service Manual PDF
DVM S Service Manuals_DVM S Outdoor Unit Service Manual PDF
Samsung official site: samsung.com/levant/air-conditioners
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