Samsung Split Type AC Error Codes
Indoor Display Error and Check Method – Outdoor LED Error Display and Check
MethodUniversal Outdoor Unit Inverter Error Codes
Error Code = 101 Indoor unit communication error – check wiring
Error Code = 102 Indoor/outdoor unit communication time our error
Error Code = 201 Indoor unit is not connected
Error Code = 203 Communication error between outdoor main PCB and Inverter
Error Code = 121 Indoor temp. sensor (open/short) – check and replaced if required
Error Code = 122 Indoor unit pipe in sensor (open/short) – check and replaced if required
Error Code = 128 Indoor unit pipe in sensor separation
Error Code = 221 Outdoor temp. sensor error (open/short) – check and replaced if required
Error Code = 237 COND temp. sensor error (open/short) – check and replaced if required
Error Code = 260 Inverter compressor discharge temp. sensor error (open/short)
Error Code = 153 Indoor float switch error
Error Code = 460 Outdoor unit-indoor unit communication error
Error Code = 554 Outdoor unit refrigerant leakage (gas leak)
Error Code = 458 Outdoor unit fan error
Error Code = 461 Inverter compressor start failure
Error Code = 464 Inverter DC PEAK Error
Error Code = 466 Inverter DC LINK Voltage 150V below, 410V Over
Error Code = 467 Inverter compressor rotation error
Error Code = 468 Inverter current sensor error
Error Code = 469 Inverter DC LINK sensor error
Error Code = 471 Inverter EEPROM read/write error
Error Code = 472 Inverter error
Error Code = 556 Outdoor unit capacity setup option error
Error Code = 601 Wired liquid crystal – indoor unit comm. error
Error Code = 602 Master wired liquid crystal – slave liquid crystal comm. error
Error Code = 603 Wired liquid crystal COM1/COM2 cross error
Error Code = 604 Error of setting option for wired remote controller COM2
Samsung DVM Digital Variable Multi VRF Systems Error Codes
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.
E-101 Communication error in indoor unit. It displays when the indoor unit receives no data from the outdoor unit.
E-102 Communication error between indoor and outdoor unit. It displays in indoor unit.
E-121 Room temperature sensor of indoor unit. (Open or Short)
E-122 Eva_in temperature sensor of indoor unit. (Open or Short)
E-123 Eva_out temperature sensor of indoor unit. (Open or Short)
E-124 Communication error between indoor and outdoor unit. It displays in outdoor unit.
E-125 Mid 2 temperature sensor of indoor unit. (Open or Short)
E-128 Eva_in temperature sensor is detached from eva_in pipe of indoor unit.
E-129 Eva_out temperature sensor is detached from eva_out pipe of indoor unit.
E-130 Eva_in and Eva_out temperature sensors are detached from eva_in and out pipes of indoor unit at the same time.
E-137 VOC sensor of ERV product. (Open or Short)
E-138 Gas sensor of ERV product. (Open or Short)
E-139 CO2 sensor of ERV product. (Open or Short )
E-151 EEV opening error of indoor unit (2nd detection)
E-152 EEV closing error of indoor unit (2nd detection)
E-153 Floating switch error of indoor unit (2nd detection)
E-154 RPM feed back error of indoor unit.
E-155 RPM feed back error of indoor unit. (The second motor of indoor unit)
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).
E-162 EEPROM error of MICOM. (Physical damage)
E-163 Option code error of indoor unit’s EEPROM.
E-167 Option setting error of indoor unit’s dip switch.
E-170 Temperature display setting error for
E-180 Opening error of cooling and heating solenoid valve simultaneously in MCU (1st detection)
E-181 Opening error of cooling and heating solenoid valve simultaneously in MCU (2nd detection)
E-185 Cross wiring error between communication and power of indoor unit.
E-190 No matching between indoor unit’s address and eva_in sensor in pipe checking operation.
E-191 No matching between indoor unit’s address and eva_out sensor in pipe checking operation.
E-199 It displays when pipe checking operation is not operated.
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.)
E-202 Communication error between indoor and outdoor unit. (After tracking is completed, and then no response from indoor unit)
E-203 Communication error between main and sub outdoor unit
E-204 The setting quantity of MCU on outdoor unit’s PCB differs from the quantity of installed MCU.
E-210 Communication error between MCU and outdoor unit.
E-211 Indoor unit’s address overlapped on the MCU.
E-213 No matching between installed indoor unit’s address and indoor unit’s address on the MCU.
E-214 Setting error of MCU’s quantity in outdoor unit’s PCB
E-215 Indoor unit’s address setting error on the MCU. (There is same address among the MCUs)
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.)
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.)
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.)
E-221 Ambient air temperature sensor of outdoor unit. (Open or Short)
E-226 Ambient air temperature sensor is detached from outdoor unit.
E-231 Cond_out temperature sensor of main outdoor unit. (Open or Short)
E-236 Cond_out temperature sensor of the outdoor unit. (Open or Short)
E-237 Cond temperature sensor of outdoor unit. (Open or Short)
E-241 Cond_mid temperature sensor is detached from sensor hold of the pipe.
E-246 Cond_out 1 temperature sensor is detached from sensor hold of the pipe.
E-251 Discharge temperature sensor of compressor 1. (Open or Short)
E-256 Discharge temperature sensor of compressor 1. (Open or Short)
E-257 Discharge temperature sensor of compressor 2. (Open or Short)
E-258 Discharge temperature sensor of compressor 3. (Open or Short)
E-261 Discharge temperature sensor of compressor 1 is detached from the sensor hold of the pipe.
E-262 Discharge temperature sensor of compressor 1 is detached from the sensor hold of the pipe.
E-263 Discharge temperature sensor of compressor 2 is detached from the sensor hold of the pipe.
E-264 Discharge temperature sensor of compressor 3 compressor is detached from the sensor hold of the pipe.
E-265 Sump(Base) temperature sensor of main unit’s compressor is detached from the base of the compressor.
E-266 Sump(Base) temperature sensor of sub1 unit’s compressor is detached from the base of the compressor.
E-267 Sump(Base) temperature sensor of sub2 unit’s compressor is detached from the base of the compressor.
E-268 Sump(Base) temperature sensor of sub3 unit’s compressor is detached from the base of the compressor.
E-269 Suction temperature sensor is detached from the sensor hold of the pipe.
E-271 Sump(Base) temperature sensor of compressor 1. (Open or Short)
E-276 Sump(Base) temperature sensor of compressor 1. (Open or Short)
E-277 Sump(Base) temperature sensor of compressor 2. (Open or Short)
E-278 Sump(Base) temperature sensor of compressor 3. (Open or Short)
E-291 High pressure sensor. (Open or Short)
E-296 Low pressure sensor. (Open or Short)
E-307 Oil balance temperature sensor. (Open or Short)
E-308 Suction temperature sensor. (Open or Short)
E-311 Double tube / Liquid temperature sensor. (Open or Short)
E-312 Main cooling solenoid valve opening error.
E-321 EVI_in temperature sensor. (Open or Short)
E-322 EVI_out temperature sensor. (Open or Short)
E-407 Compressor stop by high pressure’s protection control.
E-410 Compressor stop by low pressure’s protection control.
E-413 Protection control by sump sensor.
E-416 Compressor stop by discharge temperature’s protection control.
E-425 Reverse phase or phase open. (3ø Wiring of outdoor unit, R-S-T-N)
E-428 Compressor stop by abnormal compression ratio.
E-431 Self-diagnosis of oil solenoid valve. (Open and Close error)
E-438 EVI EEV opening error.
E-440 Prohibition of heating operation when the ambient air temperature is over 30°C
E-442 Prohibition of refrigerant charging with heating operation when outdoor ambient air temperature is over 15°C.
E-443 Prohibition of operating when the high pressure of system is too low.
E-452 Power failure temporarily or zero crossing error.
E-453 Overload error of outdoor unit’s motor (by temperature).
E-454 RPM error of outdoor unit’s motor
E-455 IPM overload error of outdoor unit’s motor (by temperature)
E-456 Over Current error of outdoor unit’s motor
E-457 Backlash error of outdoor unit’s motor
E-458 Over current of CT sensor. (Or outdoor’s motor locking of inverter system.)
E-461 Low current of CT sensor. (Or compressor starting failure of inverter system.)
E-477 Liquid refrigerant incoming protection error in digital / 1st fixed scroll compressor with sump temperature sensor.
E-559 Indoor unit stop by unidentified error from outdoor units.
E-560 Option switch setting error of outdoor unit. (napplicable option switch turns on.)
E-561 Fan RPM error of ERV SA (Supply air).
E-562 Fan RPM error of ERV RA (Return air).
E-563 Model mismatching of Indoor unit.
E-601 Communication error between remote controller and indoor unit.
E-602 Communication error between master and slave wired remote controller.
E-603 Communication packet error (Baud rate error)
E-604 Tracking failure error between wired remote controller and indoor unit.
E-605 Wired remote controller or 7-dayÖCommunication error. (7-day scheduler Centralized controller)Öscheduler
E-606 COM1/COM2 communication setting error. (Wired remote controller)
E-607 Two masters of wired remote controllers were installed in one COM2 communication line.
E-608 Can’t detect ERV controller.
E-609 Indoor unit is not detected for synchronous control.
E-610 Communication error between centralized controller and interface module.
E-611 Communication error between DMS and centralized controller.
E-613 Communication error between DMS and SIM interface module.
E-614 Communication error between SIM and power meter.
E-615 Communication error between interface module and indoor unit.
E-616 Communication error between interface module and outdoor unit.
E-618 The connected indoor units to ERV exceeded 16 units.
E-619 Mixed temperature display setting of indoor units which was connected to MWR-WS00 (Celsius/Fahrenheit)
E-620 Temperature display setting error of MWR-WS00 (Celsius/Fahrenheit)
E-621 Option switch setting error of wired remote controller (Master/Slave)
E-652 Two wired remote controllers were set to the master mode. (COM 1 wiring)
E-653 Room temperature sensor in the wired remote controller. (Open or Short)
E-654 Memory data error in the wired remote controller. (MWR-WS00)
P-701 Floating switch error of indoor unit. (1st detection)
P-702 EEV closing error of indoor unit. (1st detection)
P-703 EEV opening error of indoor unit. (1st detection)
