Samsung · A major brand in the UK. 110 codes across 9 product families, each taken from the manufacturer’s manuals. Samsung technical support ↗
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Type the code on your display or a word from its meaning. Each code opens its own page with what it means, whether it is safe and what you can check.
110 codes
| Code | Meaning | Stops? | Homeowner check? |
|---|---|---|---|
| E101 | Hydro Unit / Outdoor Unit communication connection error | Yes | Yes |
| E102 | CONTROL KIT / OUTDOOR UNIT communication time out error | Yes | Yes |
| E105 | Wi-Fi communication error | No | Yes |
| E108 | Setting Address Duplicate Error | Yes | Yes |
| E109 | Address incomplete communication error | Yes | Yes |
| E118 | Indoor unit fan controller PCB overheat error | Yes | Yes |
| E120 | Zone2 Indoor Room Temperature Sensor Short/Open | Yes | Yes |
| E121 | Error of ROOM Temperature Sensor in Indoor unit short/open | Yes | Yes |
| E122 | Error of Evaporator_in Sensor of Indoor unit short/open | Yes | Yes |
| E123 | Error of Evaporator_out Sensor of Indoor unit short/open | Yes | Yes |
| E151 | Error due to opened EEV of indoor unit (2nd detection) | Yes | Yes |
| E152 | Error due to closed EEV of indoor unit (2nd detection) | Yes | Yes |
| E162 | Outdoor UNIT EEPROM Error | Yes | Yes |
| E163 | EEPROM OPTION SETTING Error | Yes | Yes |
| E177 | In hydro box, take place emergency signal Error | Yes | Yes |
| E198 | Error of Terminal Block's Thermal Fuse(Open) | Yes | Yes |
| E201 | CONTROL KIT / Outdoor UNIT Communication Error (Matching Error) | Yes | Yes |
| E202 | CONTROL KIT / Outdoor UNIT Communication Error | Yes | Yes |
| E203 | Communication error between indoor / outdoor INV <-> MAIN MICOM (4~6min) | Yes | Yes |
| E205 | Communication Error Between Outdoor Unit Inv Micom - Fan Motor Micom | Yes | Yes |
| E221 | Outdoor Temperature Sensor Error (open/short) | Yes | Yes |
| E231 | COND_OUT Main Temperature Sensor Error (open/short) | Yes | Yes |
| E241 | COND OUT Sensor of Outdoor Unit breakaway Error | Yes | Yes |
| E246 | COND OUT sensor is detached | Yes | Yes |
| E251 | Discharge Temperature Sensor Error (open/short) | Yes | Yes |
| E262 | Discharge Sensor breakaway Error | Yes | Yes |
| E266 | Comp Top Sensor breakaway Error | Yes | Yes |
| E269 | SUCTION Sensor breakaway Error | Yes | Yes |
| E276 | Compressor Top Temperature Sensor Error (open/short) | Yes | Yes |
| E291 | High Pressure Sensor Error (open/short) | Yes | Yes |
| E296 | Low Pressure Sensor Error (open/short) | Yes | Yes |
| E308 | Suction Sensor Error (open/short) | Yes | Yes |
| E311 | Error on temperature sensor of double layer pipe/liquid pipe (sub heat exchanger) (Short or Open) | Yes | Yes |
| E320 | OLP sensor error | Yes | Yes |
| E321 | EVI Inlet Sensor Error (open/short) | Yes | Yes |
| E322 | EVI Outlet Sensor Error (open/short) | Yes | Yes |
| E381 | Inverter PCB overheat error | Yes | Yes |
| E403 | Protect for Freezing Control Error | Yes | Yes |
| E404 | Protection of OUTDOOR UINT when it is overload | Yes | Yes |
| E407 | COMP down due to High Pressure Sensor Protection Control | Yes | Yes |
| E410 | COMP down due to Low Pressure Sensor Protection Control | Yes | Yes |
| E416 | Comp down due to discharge Temperature | Yes | Yes |
| E419 | Outdoor EEV open error | Yes | Yes |
| E425 | Outdoor Reverse Phase or Missing Phase Detect Error | Yes | Yes |
| E428 | COMP down by Compression Ratio control Error | Yes | Yes |
| E436 | Protect for Freezing Burst Control Error | Yes | Yes |
| E438 | EVI EEV Opening Error | Yes | Yes |
| E439 | Refrigerant Leakage Error (Detect when the system is not operated) | Yes | Yes |
| E440 | Forbid Heat mode Operation when Outdoor Temperature is over 43 °C | Partly | Yes |
| E441 | Forbid Cooling Mode when Outdoor Temperature is Low 10°C | Partly | Yes |
| E442 | Refrigerant charging restriction in heating mode when air temperature is over 15 °C | Partly | Yes |
| E443 | No startup due to Low pressure | Yes | Yes |
| E458 | Outdoor unit Fan Error | Yes | Yes |
| E461 | [Inverter] COMP Operating failure | Yes | Yes |
| E462 | All currency control COMP Stop Or CT2 Low currency | Yes | Yes |
| E463 | OLP over heat and comp stop | Yes | Yes |
| E464 | [Inverter] DC peak Error | Yes | Yes |
| E465 | Compressor V limit Error | Yes | Yes |
| E466 | [Inverter] DC-Link voltage under/over Error | Yes | Yes |
| E467 | COMP Revolute Error | Yes | Yes |
| E468 | [Inverter] Comp Current Sensor Error | Yes | Yes |
| E469 | DC Link Sensor Error | Yes | Yes |
| E470 | Outdoor unit EEPROM Read/Write Error | Yes | Yes |
| E471 | Outdoor unit EEPROM Read/Write Error(OTP error) | Yes | Yes |
| E474 | [Inverter] IPM Heat Sink Error | Yes | Yes |
| E475 | Outdoor unit BLDC Fan Error | Yes | Yes |
| E483 | H/W DC_link over voltage Error | Yes | Yes |
| E484 | PFC Overload Error | Yes | Yes |
| E485 | [Inverter] Input Current Sensor Error (open/short) | Yes | Yes |
| E488 | AC Input Voltage Sensor Error | Yes | Yes |
| E500 | IPM Overheat Error for Inverter COMP | Yes | Yes |
| E507 | Comp Down due to high pressure or High Pressure Switch Open | Yes | Yes |
| E536 | PHE refrigerant leakage error | Yes | Yes |
| E554 | GasLeak Error | Yes | Yes |
| E556 | Capacity mismatching between indoor and outdoor | Yes | Yes |
| E557 | Option code miss matching among the indoors (only for DPM) | Yes | Yes |
| E563 | INDOOR UNIT Mixed Install Error | Yes | Yes |
| E590 | [Inverter] Data flash Error | Yes | Yes |
| E601 | Communication error between the Hydro Unit and AI Home | Yes | Yes |
| E602 | Wired remote controller Main/Sub setting error | No | Yes |
| E604 | Communication tracking error between the Hydro Unit and AI Home | Yes | Yes |
| E607 | Communication error between the Main and Sub wired remote controllers | No | Yes |
| E653 | AI Home temp sensor SHORT or OPEN | Yes | Yes |
| E654 | Memory(EEPROM) Read/Write Error (AI Home data error) | Yes | Yes |
| E670 | Controller combination error | Yes | Yes |
| E702 | Error due to closed EEV of indoor unit(1st detection) | Yes | Yes |
| E703 | Error due to opened EEV of indoor unit(1st detection) | Yes | Yes |
| E896 | Water outlet temperature sensor (Tw5) for external heater short or open | Yes | Yes |
| E897 | Water Tank in sensor error (open/short) | Yes | Yes |
| E899 | Zone1 Tw Temperature Sensor Short/Open | Yes | Yes |
| E900 | Zone2 Tw Temperature Sensor Short/Open | Yes | Yes |
| E901 | Water Inlet Sensor Error (open/short) | Yes | Yes |
| E902 | Water Outlet Sensor Error (open/short) | Yes | Yes |
| E903 | Water outlet (backup heater) temperature sensor error | Yes | Yes |
| E904 | Water TANK Sensor SHORT / OPEN | Yes | Yes |
| E906 | Outdoor EVA in Sensor Error (open/short) | Yes | Yes |
| E907 | Error due to pipe rupture protection | Yes | Yes |
| E908 | Error due to freeze prevention (Re-operation is possible) | Yes | Yes |
| E909 | Error due to freeze prevention (Re-operation is impossible) | Yes | Yes |
| E910 | Water Temperature Sensor on water Outlet pipe is detached | Yes | Yes |
| E911 | FLow Switch Open Error | Yes | Yes |
| E912 | FLow Switch Close Error | Yes | Yes |
| E913 | Six times detection for Flow Switch Error (Re-operation is not possible) | Yes | Yes |
| E914 | Error due to Incorrect Thermostat Connection | Yes | Yes |
| E915 | Error on DC fan (Non-operating) | Yes | Yes |
| E916 | Mixing Sensor Short/Open | Yes | Yes |
| E917 | Water Tank Sensor configuration error | Yes | Yes |
| E919 | Disinfection Operation Incomplete Error | No | Yes |
| E920 | FSV SD Card Read Error | Not stated | Yes |
| E973 | Water pressure sensor research (Short/Open) | Yes | Yes |