E101 Indoor unit communication error. Indoor unit cannot receive any data from the outdoor unit. Result 1 of 2 with this code and meaning. Expand for model and series details.
E102 Communication error between the indoor unit and outdoor unit. Displayed in the indoor unit. Result 1 of 2 with this code and meaning. Expand for model and series details.
E108 Error due to repeated address setting (when two or more devices have the same address within the network) Result 1 of 2 with this code and meaning. Expand for model and series details.
E121 Error on indoor temperature sensor of indoor unit (Short or Open) Result 1 of 2 with this code and meaning. Expand for model and series details.
E122 Error on EVA IN sensor of indoor unit (Short or Open) Result 1 of 2 with this code and meaning. Expand for model and series details.
E123 Error on EVA OUT sensor of indoor unit (Short or Open) Result 1 of 2 with this code and meaning. Expand for model and series details.
E128 EVA IN temperature sensor of indoor unit is detached from EVA IN pipe Result 1 of 2 with this code and meaning. Expand for model and series details.
E129 EVA OUT temperature sensor of indoor unit is detached from EVA OUT pipe Result 1 of 2 with this code and meaning. Expand for model and series details.
E130 Heat exchanger in/out sensors of indoor unit are detached Result 1 of 2 with this code and meaning. Expand for model and series details.
E135 RPM feedback error of indoor unit's cleaning fan Result 1 of 2 with this code and meaning. Expand for model and series details.
E149 Error due to AHU master indoor unit sensor setting Result 1 of 2 with this code and meaning. Expand for model and series details.
E151 Error due to opened EEV of indoor unit (2nd detection) Result 1 of 2 with this code and meaning. Expand for model and series details.
E152 Error due to closed EEV of indoor unit (2nd detection) Result 1 of 2 with this code and meaning. Expand for model and series details.
E153 Error on floating switch of indoor unit (2nd detection) Result 1 of 2 with this code and meaning. Expand for model and series details.
E154 RPM feedback error of indoor unit Result 1 of 2 with this code and meaning. Expand for model and series details.
E161 Mixed operation mode error of indoor unit; when the outdoor unit is getting ready to operate in cooling (or heating) and an indoor unit is trying to operate in heating (or cooling) mode Result 1 of 2 with this code and meaning. Expand for model and series details.
E162 EEPROM error of MICOM (physical problem of parts/circuit) Result 1 of 2 with this code and meaning. Expand for model and series details.
E163 Indoor unit's remote controller option input is incorrect or missing; outdoor unit EEPROM data error Result 1 of 2 with this code and meaning. Expand for model and series details.
E180 Simultaneous opening of cooling/heating MCU SOL V/V (1st detection) Result 1 of 2 with this code and meaning. Expand for model and series details.
E181 Simultaneous opening of cooling/heating MCU SOL V/V (2nd detection) Result 1 of 2 with this code and meaning. Expand for model and series details.
E185 Cross wiring error between communication and power cable of indoor unit Result 1 of 2 with this code and meaning. Expand for model and series details.
E186 Connection error or problem on SPi Result 1 of 2 with this code and meaning. Expand for model and series details.
E190 No temperature changes in EVA IN during pipe inspection, or a temperature change is seen in an indoor unit with the wrong address Result 1 of 2 with this code and meaning. Expand for model and series details.
E191 No temperature changes in EVA OUT during pipe inspection, or a temperature change is seen in an indoor unit with the wrong address Result 1 of 2 with this code and meaning. Expand for model and series details.
E198 Error due to disconnected thermal fuse of indoor unit Result 1 of 2 with this code and meaning. Expand for model and series details.
E201 Communication error between indoor and outdoor units (installation number setting error, repeated indoor unit address, or indoor unit communication cable error) Result 1 of 2 with this code and meaning. Expand for model and series details.
E202 Communication error between indoor and outdoor units (communication error on all indoor units or outdoor unit communication cable error) Result 1 of 2 with this code and meaning. Expand for model and series details.
E203 Communication error between main and sub outdoor units Result 1 of 2 with this code and meaning. Expand for model and series details.
E205 Communication error on all PBA within the outdoor unit C-Box, or communication cable error Result 1 of 2 with this code and meaning. Expand for model and series details.
E206 E206-C001: HUB PBA communication error / E206-C002: FAN PBA communication error / E206-C003: INV1 PBA communication error / E206-C004: INV2 PBA communication error Result 1 of 2 with this code and meaning. Expand for model and series details.
E211 A single indoor unit uses two MCU ports that are not in series Result 1 of 2 with this code and meaning. Expand for model and series details.
E212 The MCU rotary switch address setting gives three or more indoor units the same address Result 1 of 2 with this code and meaning. Expand for model and series details.
E213 The assigned MCU indoor-unit total matches the installed total, but an indoor unit assigned to the MCU is not installed Result 1 of 2 with this code and meaning. Expand for model and series details.
E214 The number of MCUs is not set correctly on the outdoor unit, or two or more installed MCUs have the same address Result 1 of 2 with this code and meaning. Expand for model and series details.
E215 Two different MCUs have the same address value on the rotary switch Result 1 of 2 with this code and meaning. Expand for model and series details.
E216 An indoor unit is not installed on an MCU port, but the port switch is set to On Result 1 of 2 with this code and meaning. Expand for model and series details.
E217 An indoor unit is connected to an MCU port and assigned to an MCU, but the port switch is set to Off Result 1 of 2 with this code and meaning. Expand for model and series details.
E218 The actual number of indoor-unit connections exceeds the number of indoor units assigned to the MCU Result 1 of 2 with this code and meaning. Expand for model and series details.
E219 Error on temperature sensor located on MCU intercooler inlet (Short or Open) Result 1 of 2 with this code and meaning. Expand for model and series details.
E220 Error on temperature sensor located on MCU intercooler outlet (Short or Open) Result 1 of 2 with this code and meaning. Expand for model and series details.
E221 Error on outdoor temperature sensor of outdoor unit (Short or Open) Result 1 of 2 with this code and meaning. Expand for model and series details.
E231 Error on COND OUT temperature sensor of main outdoor unit (Short or Open) Result 1 of 2 with this code and meaning. Expand for model and series details.
E241 COND OUT sensor is detached Result 1 of 2 with this code and meaning. Expand for model and series details.
E251 Error on discharge temperature sensor of compressor 1 (Short or Open) Result 1 of 2 with this code and meaning. Expand for model and series details.
E257 Error on discharge temperature sensor of compressor 2 (Short or Open) Result 1 of 2 with this code and meaning. Expand for model and series details.
E262 Discharge temperature sensor of compressor 1 is detached from the sensor holder on the pipe Result 1 of 2 with this code and meaning. Expand for model and series details.
E263 Discharge temperature sensor of compressor 2 is detached from the sensor holder on the pipe Result 1 of 2 with this code and meaning. Expand for model and series details.
E266 Top sensor of compressor 1 is detached Result 1 of 2 with this code and meaning. Expand for model and series details.
E267 Top sensor of compressor 2 is detached Result 1 of 2 with this code and meaning. Expand for model and series details.
E269 Suction temperature sensor is detached from the sensor holder on the pipe Result 1 of 2 with this code and meaning. Expand for model and series details.
E276 Error on top sensor of compressor 1 (Short or Open) Result 1 of 2 with this code and meaning. Expand for model and series details.
E277 Error on top sensor of compressor 2 (Short or Open) Result 1 of 2 with this code and meaning. Expand for model and series details.
E291 Refrigerant leakage or error on high pressure sensor (Short or Open) Result 1 of 2 with this code and meaning. Expand for model and series details.
E296 Refrigerant leakage or error on low pressure sensor (Short or Open) Result 1 of 2 with this code and meaning. Expand for model and series details.
E308 Error on suction temperature sensor (Short or Open) Result 1 of 2 with this code and meaning. Expand for model and series details.
E311 Error on temperature sensor of double-layer pipe/liquid pipe (sub heat exchanger) (Short or Open) Result 1 of 2 with this code and meaning. Expand for model and series details.
E321 Error on EVI (ESC) IN temperature sensor (Short or Open) Result 1 of 2 with this code and meaning. Expand for model and series details.
E322 Error on EVI (ESC) OUT temperature sensor (Short or Open) Result 1 of 2 with this code and meaning. Expand for model and series details.
E323 Error on suction sensor 2 (Short or Open) Result 1 of 2 with this code and meaning. Expand for model and series details.
E346 Error due to operation failure of Fan2 Result 1 of 2 with this code and meaning. Expand for model and series details.
E347 Motor wire of Fan2 is not connected Result 1 of 2 with this code and meaning. Expand for model and series details.
E348 Lock error on Fan2 of outdoor unit Result 1 of 2 with this code and meaning. Expand for model and series details.
E353 Error due to overheated motor of outdoor unit's Fan2 Result 1 of 2 with this code and meaning. Expand for model and series details.
E355 Error due to overheated IPM of Fan2 Result 1 of 2 with this code and meaning. Expand for model and series details.
E361 Error due to operation failure of inverter compressor 2 Result 1 of 2 with this code and meaning. Expand for model and series details.
E364 Error due to over-current of inverter compressor 2 Result 1 of 2 with this code and meaning. Expand for model and series details.
E365 V-limit error of inverter compressor 2 Result 1 of 2 with this code and meaning. Expand for model and series details.
E366 Error due to over-voltage/low-voltage of inverter PBA2 Result 1 of 2 with this code and meaning. Expand for model and series details.
E367 Error due to unconnected wire of compressor 2 Result 1 of 2 with this code and meaning. Expand for model and series details.
E368 Output current sensor error of inverter PBA2 Result 1 of 2 with this code and meaning. Expand for model and series details.
E369 DC voltage sensor error of inverter PBA2 Result 1 of 2 with this code and meaning. Expand for model and series details.
E374 Heat sink temperature sensor error of inverter PBA2 Result 1 of 2 with this code and meaning. Expand for model and series details.
E378 Error due to overcurrent of Fan2 Result 1 of 2 with this code and meaning. Expand for model and series details.
E385 Error due to input current of inverter 2 Result 1 of 2 with this code and meaning. Expand for model and series details.
E386 Over-voltage/low-voltage error of Fan2 Result 1 of 2 with this code and meaning. Expand for model and series details.
E387 Hall IC connection error of Fan2 Result 1 of 2 with this code and meaning. Expand for model and series details.
E389 V-limit error on Fan2 of compressor Result 1 of 2 with this code and meaning. Expand for model and series details.
E393 Output current sensor error of Fan2 Result 1 of 2 with this code and meaning. Expand for model and series details.
E396 DC voltage sensor error of Fan2 Result 1 of 2 with this code and meaning. Expand for model and series details.
E399 Heat sink temperature sensor error of Fan2 Result 1 of 2 with this code and meaning. Expand for model and series details.
E400 Error due to overheat caused by contact failure on IPM of inverter PBA2 Result 1 of 2 with this code and meaning. Expand for model and series details.
E407 Compressor operation stop due to high pressure protection control Result 1 of 2 with this code and meaning. Expand for model and series details.
E410 Compressor operation stop due to low pressure protection control or refrigerant leakage Result 1 of 2 with this code and meaning. Expand for model and series details.
E416 Compressor operation stop due to discharge temperature protection control Result 1 of 2 with this code and meaning. Expand for model and series details.
E425 Phase reversal or phase failure (3-phase outdoor unit wiring, R-S-T-N), or connection error on 3-phase input Result 1 of 2 with this code and meaning. Expand for model and series details.
E428 Compressor operation stop due to abnormal compression ratio Result 1 of 2 with this code and meaning. Expand for model and series details.
E438 EVI (ESC) EEV leakage, internal leakage of intercooler, or incorrect connector insertion of EVI (ESC) EEV Result 1 of 2 with this code and meaning. Expand for model and series details.
E439 Error due to refrigerant leakage Result 1 of 2 with this code and meaning. Expand for model and series details.
E440 Heating mode restriction due to high air temperature Result 1 of 2 with this code and meaning. Expand for model and series details.
E441 Cooling mode restriction due to low air temperature Result 1 of 2 with this code and meaning. Expand for model and series details.
E442 Refrigerant charging restriction in heating mode when air temperature is over 15 °C Result 1 of 2 with this code and meaning. Expand for model and series details.
E443 Operation prohibited due to low pressure Result 1 of 2 with this code and meaning. Expand for model and series details.
E445 CCH is detached Result 1 of 2 with this code and meaning. Expand for model and series details.
E446 Error due to operation failure of Fan1 Result 1 of 2 with this code and meaning. Expand for model and series details.
E447 Motor wire of Fan1 is not connected Result 1 of 2 with this code and meaning. Expand for model and series details.
E448 Lock error on Fan1 Result 1 of 2 with this code and meaning. Expand for model and series details.
E452 Error due to ZPC detection circuit problem or power failure Result 1 of 2 with this code and meaning. Expand for model and series details.
E453 Error due to overheated motor of outdoor unit's Fan1 Result 1 of 2 with this code and meaning. Expand for model and series details.
E455 Error due to overheated IPM of Fan1 Result 1 of 2 with this code and meaning. Expand for model and series details.
E461 Error due to operation failure of inverter compressor 1 Result 1 of 2 with this code and meaning. Expand for model and series details.
E462 Compressor stop due to full current control or error due to low current on CT2 Result 1 of 2 with this code and meaning. Expand for model and series details.
E464 Error due to over-current of inverter compressor 1 Result 1 of 2 with this code and meaning. Expand for model and series details.
E465 V-limit error of inverter compressor 1 Result 1 of 2 with this code and meaning. Expand for model and series details.
E466 Error due to over-voltage/low-voltage of inverter PBA1 Result 1 of 2 with this code and meaning. Expand for model and series details.
E467 Error due to unconnected wire of compressor 1 Result 1 of 2 with this code and meaning. Expand for model and series details.
E468 Output current sensor error of inverter PBA1 Result 1 of 2 with this code and meaning. Expand for model and series details.
E469 DC voltage sensor error of inverter PBA1 Result 1 of 2 with this code and meaning. Expand for model and series details.
E474 Heat sink temperature sensor error of inverter PBA1 Result 1 of 2 with this code and meaning. Expand for model and series details.
E478 Error due to overcurrent of Fan1 Result 1 of 2 with this code and meaning. Expand for model and series details.
E485 Error due to input current of inverter 1 Result 1 of 2 with this code and meaning. Expand for model and series details.
E486 Error due to over-voltage/low-voltage of Fan1 Result 1 of 2 with this code and meaning. Expand for model and series details.
E487 Hall IC error of Fan1 Result 1 of 2 with this code and meaning. Expand for model and series details.
E489 V-limit error on Fan1 of compressor Result 1 of 2 with this code and meaning. Expand for model and series details.
E493 Output current sensor error of Fan1 Result 1 of 2 with this code and meaning. Expand for model and series details.
E496 DC voltage sensor error of Fan1 Result 1 of 2 with this code and meaning. Expand for model and series details.
E499 Heat sink temperature sensor error of Fan1 Result 1 of 2 with this code and meaning. Expand for model and series details.
E500 Error due to overheat caused by contact failure on IPM of inverter PBA1 Result 1 of 2 with this code and meaning. Expand for model and series details.
E503 Error alerting the user to check whether the service valve is closed Result 1 of 2 with this code and meaning. Expand for model and series details.
E504 Error due to self diagnosis of compressor operation Result 1 of 2 with this code and meaning. Expand for model and series details.
E505 Error due to self diagnosis of high pressure sensor Result 1 of 2 with this code and meaning. Expand for model and series details.
E506 Error due to self diagnosis of low pressure sensor Result 1 of 2 with this code and meaning. Expand for model and series details.
E560 Outdoor unit's option switch setting error (when an inappropriate option switch is on) Result 1 of 2 with this code and meaning. Expand for model and series details.
E563 Error due to module installation of indoor unit with old version (MICOM version needs to be checked) Result 1 of 2 with this code and meaning. Expand for model and series details.
E573 Error due to using single-type outdoor unit in a module installation Result 1 of 2 with this code and meaning. Expand for model and series details.
E702 Error due to closed EEV of indoor unit (1st detection) Result 1 of 2 with this code and meaning. Expand for model and series details.
E703 Error due to opened EEV of indoor unit (1st detection) Result 1 of 2 with this code and meaning. Expand for model and series details.
UP Auto Trial Operation incompleted (UnPrepared)
E101 Indoor unit communication error. Indoor unit cannot receive any data from the outdoor unit. Result 2 of 2 with this code and meaning. Expand for model and series details.
E102 Communication error between the indoor unit and outdoor unit. Displayed in the indoor unit. Result 2 of 2 with this code and meaning. Expand for model and series details.
E108 Error due to repeated address setting (when two or more devices have the same address within the network) Result 2 of 2 with this code and meaning. Expand for model and series details.
E121 Error on indoor temperature sensor of indoor unit (Short or Open) Result 2 of 2 with this code and meaning. Expand for model and series details.
E122 Error on EVA IN sensor of indoor unit (Short or Open) Result 2 of 2 with this code and meaning. Expand for model and series details.
E123 Error on EVA OUT sensor of indoor unit (Short or Open) Result 2 of 2 with this code and meaning. Expand for model and series details.
E128 EVA IN temperature sensor of indoor unit is detached from EVA IN pipe Result 2 of 2 with this code and meaning. Expand for model and series details.
E129 EVA OUT temperature sensor of indoor unit is detached from EVA OUT pipe Result 2 of 2 with this code and meaning. Expand for model and series details.
E130 Heat exchanger in/out sensors of indoor unit are detached Result 2 of 2 with this code and meaning. Expand for model and series details.
E135 RPM feedback error of indoor unit's cleaning fan Result 2 of 2 with this code and meaning. Expand for model and series details.
E149 Error due to AHU master indoor unit sensor setting Result 2 of 2 with this code and meaning. Expand for model and series details.
E151 Error due to opened EEV of indoor unit (2nd detection) Result 2 of 2 with this code and meaning. Expand for model and series details.
E152 Error due to closed EEV of indoor unit (2nd detection) Result 2 of 2 with this code and meaning. Expand for model and series details.
E153 Error on floating switch of indoor unit (2nd detection) Result 2 of 2 with this code and meaning. Expand for model and series details.
E154 RPM feedback error of indoor unit Result 2 of 2 with this code and meaning. Expand for model and series details.
E161 Mixed operation mode error of indoor unit; when the outdoor unit is getting ready to operate in cooling (or heating) and an indoor unit is trying to operate in heating (or cooling) mode Result 2 of 2 with this code and meaning. Expand for model and series details.
E162 EEPROM error of MICOM (physical problem of parts/circuit) Result 2 of 2 with this code and meaning. Expand for model and series details.
E163 Indoor unit's remote controller option input is incorrect or missing; outdoor unit EEPROM data error Result 2 of 2 with this code and meaning. Expand for model and series details.
E180 Simultaneous opening of cooling/heating MCU SOL V/V (1st detection) Result 2 of 2 with this code and meaning. Expand for model and series details.
E181 Simultaneous opening of cooling/heating MCU SOL V/V (2nd detection) Result 2 of 2 with this code and meaning. Expand for model and series details.
E185 Cross wiring error between communication and power cable of indoor unit Result 2 of 2 with this code and meaning. Expand for model and series details.
E186 Connection error or problem on SPi Result 2 of 2 with this code and meaning. Expand for model and series details.
E190 No temperature changes in EVA IN during pipe inspection, or a temperature change is seen in an indoor unit with the wrong address Result 2 of 2 with this code and meaning. Expand for model and series details.
E191 No temperature changes in EVA OUT during pipe inspection, or a temperature change is seen in an indoor unit with the wrong address Result 2 of 2 with this code and meaning. Expand for model and series details.
E198 Error due to disconnected thermal fuse of indoor unit Result 2 of 2 with this code and meaning. Expand for model and series details.
E201 Communication error between indoor and outdoor units (installation number setting error, repeated indoor unit address, or indoor unit communication cable error) Result 2 of 2 with this code and meaning. Expand for model and series details.
E202 Communication error between indoor and outdoor units (communication error on all indoor units or outdoor unit communication cable error) Result 2 of 2 with this code and meaning. Expand for model and series details.
E203 Communication error between main and sub outdoor units Result 2 of 2 with this code and meaning. Expand for model and series details.
E205 Communication error on all PBA within the outdoor unit C-Box, or communication cable error Result 2 of 2 with this code and meaning. Expand for model and series details.
E206 E206-C001: HUB PBA communication error / E206-C002: FAN PBA communication error / E206-C003: INV1 PBA communication error / E206-C004: INV2 PBA communication error Result 2 of 2 with this code and meaning. Expand for model and series details.
E211 A single indoor unit uses two MCU ports that are not in series Result 2 of 2 with this code and meaning. Expand for model and series details.
E212 The MCU rotary switch address setting gives three or more indoor units the same address Result 2 of 2 with this code and meaning. Expand for model and series details.
E213 The assigned MCU indoor-unit total matches the installed total, but an indoor unit assigned to the MCU is not installed Result 2 of 2 with this code and meaning. Expand for model and series details.
E214 The number of MCUs is not set correctly on the outdoor unit, or two or more installed MCUs have the same address Result 2 of 2 with this code and meaning. Expand for model and series details.
E215 Two different MCUs have the same address value on the rotary switch Result 2 of 2 with this code and meaning. Expand for model and series details.
E216 An indoor unit is not installed on an MCU port, but the port switch is set to On Result 2 of 2 with this code and meaning. Expand for model and series details.
E217 An indoor unit is connected to an MCU port and assigned to an MCU, but the port switch is set to Off Result 2 of 2 with this code and meaning. Expand for model and series details.
E218 The actual number of indoor-unit connections exceeds the number of indoor units assigned to the MCU Result 2 of 2 with this code and meaning. Expand for model and series details.
E219 Error on temperature sensor located on MCU intercooler inlet (Short or Open) Result 2 of 2 with this code and meaning. Expand for model and series details.
E220 Error on temperature sensor located on MCU intercooler outlet (Short or Open) Result 2 of 2 with this code and meaning. Expand for model and series details.
E221 Error on outdoor temperature sensor of outdoor unit (Short or Open) Result 2 of 2 with this code and meaning. Expand for model and series details.
E231 Error on COND OUT temperature sensor of main outdoor unit (Short or Open) Result 2 of 2 with this code and meaning. Expand for model and series details.
E241 COND OUT sensor is detached Result 2 of 2 with this code and meaning. Expand for model and series details.
E251 Error on discharge temperature sensor of compressor 1 (Short or Open) Result 2 of 2 with this code and meaning. Expand for model and series details.
E257 Error on discharge temperature sensor of compressor 2 (Short or Open) Result 2 of 2 with this code and meaning. Expand for model and series details.
E262 Discharge temperature sensor of compressor 1 is detached from the sensor holder on the pipe Result 2 of 2 with this code and meaning. Expand for model and series details.
E263 Discharge temperature sensor of compressor 2 is detached from the sensor holder on the pipe Result 2 of 2 with this code and meaning. Expand for model and series details.
E266 Top sensor of compressor 1 is detached Result 2 of 2 with this code and meaning. Expand for model and series details.
E267 Top sensor of compressor 2 is detached Result 2 of 2 with this code and meaning. Expand for model and series details.
E269 Suction temperature sensor is detached from the sensor holder on the pipe Result 2 of 2 with this code and meaning. Expand for model and series details.
E276 Error on top sensor of compressor 1 (Short or Open) Result 2 of 2 with this code and meaning. Expand for model and series details.
E277 Error on top sensor of compressor 2 (Short or Open) Result 2 of 2 with this code and meaning. Expand for model and series details.
E291 Refrigerant leakage or error on high pressure sensor (Short or Open) Result 2 of 2 with this code and meaning. Expand for model and series details.
E296 Refrigerant leakage or error on low pressure sensor (Short or Open) Result 2 of 2 with this code and meaning. Expand for model and series details.
E308 Error on suction temperature sensor (Short or Open) Result 2 of 2 with this code and meaning. Expand for model and series details.
E311 Error on temperature sensor of double-layer pipe/liquid pipe (sub heat exchanger) (Short or Open) Result 2 of 2 with this code and meaning. Expand for model and series details.
E321 Error on EVI (ESC) IN temperature sensor (Short or Open) Result 2 of 2 with this code and meaning. Expand for model and series details.
E322 Error on EVI (ESC) OUT temperature sensor (Short or Open) Result 2 of 2 with this code and meaning. Expand for model and series details.
E323 Error on suction sensor 2 (Short or Open) Result 2 of 2 with this code and meaning. Expand for model and series details.
E346 Error due to operation failure of Fan2 Result 2 of 2 with this code and meaning. Expand for model and series details.
E347 Motor wire of Fan2 is not connected Result 2 of 2 with this code and meaning. Expand for model and series details.
E348 Lock error on Fan2 of outdoor unit Result 2 of 2 with this code and meaning. Expand for model and series details.
E353 Error due to overheated motor of outdoor unit's Fan2 Result 2 of 2 with this code and meaning. Expand for model and series details.
E236 Outdoor COND OUT2 temperature sensor open or short circuit
E246 Outdoor COND OUT2 temperature sensor detached
E327 Suction temperature sensor 3 open or short circuit
E272 Suction 3 temperature sensor detached
E355 Error due to overheated IPM of Fan2 Result 2 of 2 with this code and meaning. Expand for model and series details.
E361 Error due to operation failure of inverter compressor 2 Result 2 of 2 with this code and meaning. Expand for model and series details.
E364 Error due to over-current of inverter compressor 2 Result 2 of 2 with this code and meaning. Expand for model and series details.
E365 V-limit error of inverter compressor 2 Result 2 of 2 with this code and meaning. Expand for model and series details.
E366 Error due to over-voltage/low-voltage of inverter PBA2 Result 2 of 2 with this code and meaning. Expand for model and series details.
E367 Error due to unconnected wire of compressor 2 Result 2 of 2 with this code and meaning. Expand for model and series details.
E368 Output current sensor error of inverter PBA2 Result 2 of 2 with this code and meaning. Expand for model and series details.
E369 DC voltage sensor error of inverter PBA2 Result 2 of 2 with this code and meaning. Expand for model and series details.
E371 Inverter 2 EEPROM abnormality
E374 Heat sink temperature sensor error of inverter PBA2 Result 2 of 2 with this code and meaning. Expand for model and series details.
E378 Error due to overcurrent of Fan2 Result 2 of 2 with this code and meaning. Expand for model and series details.
E383 Outdoor Fan 2 overcurrent
E385 Error due to input current of inverter 2 Result 2 of 2 with this code and meaning. Expand for model and series details.
E386 Over-voltage/low-voltage error of Fan2 Result 2 of 2 with this code and meaning. Expand for model and series details.
E387 Hall IC connection error of Fan2 Result 2 of 2 with this code and meaning. Expand for model and series details.
E389 V-limit error on Fan2 of compressor Result 2 of 2 with this code and meaning. Expand for model and series details.
E391 Outdoor Fan 2 EEPROM abnormality
E393 Output current sensor error of Fan2 Result 2 of 2 with this code and meaning. Expand for model and series details.
E396 DC voltage sensor error of Fan2 Result 2 of 2 with this code and meaning. Expand for model and series details.
E399 Heat sink temperature sensor error of Fan2 Result 2 of 2 with this code and meaning. Expand for model and series details.
E400 Error due to overheat caused by contact failure on IPM of inverter PBA2 Result 2 of 2 with this code and meaning. Expand for model and series details.
E407 Compressor operation stop due to high pressure protection control Result 2 of 2 with this code and meaning. Expand for model and series details.
E410 Compressor operation stop due to low pressure protection control or refrigerant leakage Result 2 of 2 with this code and meaning. Expand for model and series details.
E416 Compressor operation stop due to discharge temperature protection control Result 2 of 2 with this code and meaning. Expand for model and series details.
E425 Phase reversal or phase failure (3-phase outdoor unit wiring, R-S-T-N), or connection error on 3-phase input Result 2 of 2 with this code and meaning. Expand for model and series details.
E428 Compressor operation stop due to abnormal compression ratio Result 2 of 2 with this code and meaning. Expand for model and series details.
E435 Flow-switch error
E436 Heat-exchanger frost-protection error
E438 EVI (ESC) EEV leakage, internal leakage of intercooler, or incorrect connector insertion of EVI (ESC) EEV Result 2 of 2 with this code and meaning. Expand for model and series details.
E439 Error due to refrigerant leakage Result 2 of 2 with this code and meaning. Expand for model and series details.
E440 Heating mode restriction due to high air temperature Result 2 of 2 with this code and meaning. Expand for model and series details.
E441 Cooling mode restriction due to low air temperature Result 2 of 2 with this code and meaning. Expand for model and series details.
E442 Refrigerant charging restriction in heating mode when air temperature is over 15 °C Result 2 of 2 with this code and meaning. Expand for model and series details.
E443 Operation prohibited due to low pressure Result 2 of 2 with this code and meaning. Expand for model and series details.
E445 CCH is detached Result 2 of 2 with this code and meaning. Expand for model and series details.
E446 Error due to operation failure of Fan1 Result 2 of 2 with this code and meaning. Expand for model and series details.
E447 Motor wire of Fan1 is not connected Result 2 of 2 with this code and meaning. Expand for model and series details.
E448 Lock error on Fan1 Result 2 of 2 with this code and meaning. Expand for model and series details.
E452 Error due to ZPC detection circuit problem or power failure Result 2 of 2 with this code and meaning. Expand for model and series details.
E453 Error due to overheated motor of outdoor unit's Fan1 Result 2 of 2 with this code and meaning. Expand for model and series details.
E454 Outdoor Fan 1 RPM error
E455 Error due to overheated IPM of Fan1 Result 2 of 2 with this code and meaning. Expand for model and series details.
E457 Outdoor-unit reversed wind-direction error
E461 Error due to operation failure of inverter compressor 1 Result 2 of 2 with this code and meaning. Expand for model and series details.
E462 Compressor stop due to full current control or error due to low current on CT2 Result 2 of 2 with this code and meaning. Expand for model and series details.
E464 Error due to over-current of inverter compressor 1 Result 2 of 2 with this code and meaning. Expand for model and series details.
E465 V-limit error of inverter compressor 1 Result 2 of 2 with this code and meaning. Expand for model and series details.
E466 Error due to over-voltage/low-voltage of inverter PBA1 Result 2 of 2 with this code and meaning. Expand for model and series details.
E467 Error due to unconnected wire of compressor 1 Result 2 of 2 with this code and meaning. Expand for model and series details.
E468 Output current sensor error of inverter PBA1 Result 2 of 2 with this code and meaning. Expand for model and series details.
E469 DC voltage sensor error of inverter PBA1 Result 2 of 2 with this code and meaning. Expand for model and series details.
E471 Inverter 1 EEPROM abnormality
E474 Heat sink temperature sensor error of inverter PBA1 Result 2 of 2 with this code and meaning. Expand for model and series details.
E478 Error due to overcurrent of Fan1 Result 2 of 2 with this code and meaning. Expand for model and series details.
E485 Error due to input current of inverter 1 Result 2 of 2 with this code and meaning. Expand for model and series details.
E486 Error due to over-voltage/low-voltage of Fan1 Result 2 of 2 with this code and meaning. Expand for model and series details.
E487 Hall IC error of Fan1 Result 2 of 2 with this code and meaning. Expand for model and series details.
E489 V-limit error on Fan1 of compressor Result 2 of 2 with this code and meaning. Expand for model and series details.
E491 Outdoor Fan 1 EEPROM abnormality
E493 Output current sensor error of Fan1 Result 2 of 2 with this code and meaning. Expand for model and series details.
E496 DC voltage sensor error of Fan1 Result 2 of 2 with this code and meaning. Expand for model and series details.
E499 Heat sink temperature sensor error of Fan1 Result 2 of 2 with this code and meaning. Expand for model and series details.
E500 Error due to overheat caused by contact failure on IPM of inverter PBA1 Result 2 of 2 with this code and meaning. Expand for model and series details.
E503 Error alerting the user to check whether the service valve is closed Result 2 of 2 with this code and meaning. Expand for model and series details.
E504 Error due to self diagnosis of compressor operation Result 2 of 2 with this code and meaning. Expand for model and series details.
E505 Error due to self diagnosis of high pressure sensor Result 2 of 2 with this code and meaning. Expand for model and series details.
E506 Error due to self diagnosis of low pressure sensor Result 2 of 2 with this code and meaning. Expand for model and series details.
E554 Refrigerant leakage detected
E560 Outdoor unit's option switch setting error (when an inappropriate option switch is on) Result 2 of 2 with this code and meaning. Expand for model and series details.
E563 Error due to module installation of indoor unit with old version (MICOM version needs to be checked) Result 2 of 2 with this code and meaning. Expand for model and series details.
E573 Error due to using single-type outdoor unit in a module installation Result 2 of 2 with this code and meaning. Expand for model and series details.
E574 Refrigerant leakage or insufficient refrigerant charge
E702 Error due to closed EEV of indoor unit (1st detection) Result 2 of 2 with this code and meaning. Expand for model and series details.
E703 Error due to opened EEV of indoor unit (1st detection) Result 2 of 2 with this code and meaning. Expand for model and series details.
Ice-blue blinking every 2 seconds Power reset
Ice-blue blinking every 10 seconds Defrost operation
Red blinking Indoor-temperature sensor is open or short-circuited
Blue blinking Outdoor-unit error is being reported by the indoor unit
Yellow-green blinking Communication error between the indoor and outdoor units
Yellow-green + red blinking An indoor evaporator-in, evaporator-out, or discharge sensor is open or short-circuited
Blue + red blinking Indoor-unit fan error
Yellow-green + blue blinking Float switch was detected for a second time
Ice-blue + blue blinking Thermal fuse circuit is open
Ice-blue + yellow-green + red blinking Indoor-unit EEPROM error
Power reset Receiver and display unit power-reset indication
E121 Indoor temperature sensor is open or shorted
E122 Indoor evaporator-inlet sensor is open or shorted
E123 Indoor evaporator-outlet sensor is open or shorted
E154 Indoor fan error
E221 Outdoor temperature sensor is open or shorted
E237 Outdoor condenser sensor error
E251 Outdoor discharge sensor error
E101 No communication between indoor and outdoor units for two minutes
E102 Communication error received from the outdoor unit
E202 Outdoor-unit tracking failed for three minutes
E201 Communication failed after tracking because the installed-unit count does not match
E108 Indoor-unit communication address is duplicated
E151 Indoor electronic expansion valve remained open on second detection
E152 Indoor electronic expansion valve remained closed on second detection
E128 Evaporator-inlet sensor is detached
E129 Evaporator-outlet sensor is detached
E198 Indoor thermal fuse is open
E241 Outdoor condenser-mid sensor is detached
E554 Refrigerant leakage detected for a second time
E450 Outdoor condenser temperature is abnormally high on second detection
E451 Low-pressure switch operated for a second time
E416 Outdoor-unit discharge-air temperature is abnormally high on second detection
E559 Indoor operation stopped because the outdoor-unit error could not be confirmed
E425 Outdoor-unit reverse-phase condition detected
E403 Compressor stopped after freeze detection for the sixth time
E301 High-pressure sensor is detached
E306 Low-pressure sensor is detached
E428 Outdoor-unit compression-ratio error
E410 Compressor stopped under low-pressure-sensor prevention control
E180 Cooling and heating MCU solenoid valves opened simultaneously on first detection
E181 Cooling and heating MCU solenoid valves opened simultaneously on second detection
Other outdoor error Outdoor-unit self-diagnosis error not represented by a specific code in this table
E153 Float switch operated for a second time
E161 Mixed cooling and heating operation error
E162 Indoor-unit EEPROM error
E163 Indoor-unit EEPROM option error
E101 Indoor-unit communication error
E102 Indoor/outdoor communication timeout after more than 60 data packets
E121 Indoor temperature sensor open or short circuit Result 1 of 2 with this code and meaning. Expand for model and series details.
E122 Indoor evaporator-inlet sensor open or short circuit
E128 Indoor evaporator-inlet sensor detached
E129 Indoor evaporator-outlet sensor detached
E153 Indoor float switch operated for a second time
E201 Installed indoor-unit quantity does not match the outdoor unit
E202 Abnormal or timed-out indoor/outdoor communication
E203 Communication error between the outdoor main and inverter controllers
E221 Outdoor temperature sensor error Result 2 of 2 with this code and meaning. Expand for model and series details.
E231 Condenser temperature sensor open or short circuit
E237 Condenser temperature sensor open or short circuit
E251 Discharge temperature sensor open or short circuit
E320 Overload-protector sensor error
E403 Outdoor freezing detected after the compressor stopped
E404 Outdoor overload protection after the compressor stopped
E416 Discharge over-temperature protection after the compressor stopped
E419 Electronic expansion valve stuck open
E422 Electronic expansion valve stuck closed
E425 Power-cable phase or wiring misconnection
E440 Heating operation is outside the permitted ambient-temperature range
E441 Cooling operation is outside the permitted ambient-temperature range
E458 Outdoor fan 1 error
E460 Indoor/outdoor communication wire connected to a power terminal
E461 Compressor starting error
E462 Current trip or power-factor-correction overcurrent
E463 Overload protector overheated and stopped the compressor
E464 Inverter power-module overcurrent
E465 Compressor overload
E466 DC-link under-voltage or over-voltage
E467 Compressor wire is missing or disconnected
E468 Current sensor error
E469 DC-link voltage sensor error Result 2 of 2 with this code and meaning. Expand for model and series details.
E471 Outdoor-unit EEPROM error
E472 Inverter-controller zero-crossing error
E473 Compressor lock error
E474 Heat-sink sensor error
E475 Outdoor fan 2 error
E483 AC supply over-voltage
E484 Power-factor-correction circuit overload
E485 Input-current sensor error
E500 Heat-sink over-temperature
E554 Refrigerant leak error
E556 Indoor- and outdoor-unit capacities do not match
E557 Indoor-unit option codes do not match in a DPM combination
E601 Communication error between the indoor unit and wired controller
E602 Communication error between master and slave wired controllers
E606 Wired-controller COM1 and COM2 connections are crossed
ER Wired-controller COM2 option-setting error
E101 No communication between the indoor and outdoor units
E102 The indoor unit received an outdoor-unit communication error
E122 Evaporator inlet sensor open or short circuit
E123 Evaporator outlet sensor open or short circuit
E128 Evaporator inlet sensor detached
E129 Evaporator outlet sensor detached
E174 Evaporator inlet-air sensor open or short circuit
E151 Electronic expansion valve failed to open
E152 Electronic expansion valve failed to close
E161 Mixed operating-mode error
E201 Tracked communication-unit count does not match the installed-unit count
E121 Indoor temperature sensor open or short circuit Result 2 of 2 with this code and meaning. Expand for model and series details.
E175 Outdoor temperature sensor open or short circuit
E139 Carbon-dioxide sensor open or short circuit
E162 ERV Plus EEPROM error
E163 ERV Plus EEPROM option-setting error
E186 Serial peripheral interface communication error
E561 Supply-air fan motor error
E562 Exhaust-air fan motor error
E654 Damper error after no switch input was detected for 100 seconds