Model reference

Samsung AM030/036/048FNLDCH/AA

Air Conditioner

1 document141 error codes11 service modes

Available documentation

Service Manual

SYSTEM AIRCONDITIONER INDOOR UNIT Service Manual233 pg
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Error codes (141)

CodeMeaning

E101Indoor unit communication error E102Communication error between indoor unit and outdoor unit, displayed in indoor…E108Error due to repeated address setting when 2 or more devices have the same…E109Communication address not confirmed for outdoor unit.E121Error on indoor temperature sensor of indoor unit (Short or Open).E122Error on EVA IN sensor of indoor unit (Short or Open).E123Error on EVA OUT sensor of indoor unit (Short or Open).E126Discharge sensor error (Short or Open).E128EVA IN temperature sensor of indoor unit is detached from EVA IN pipe.E129EVA OUT temperature sensor of indoor unit is detached from EVA OUT pipe.E130Heat exchanger in/out sensors of indoor unit are both detached simultaneously.E135RPM feedback error of indoor unit's cleaning fan.E151Error due to opened EEV of indoor unit (2nd detection)E152Error due to closed EEV of indoor unit (2nd detection)E153Error on floating switch of indoor unit drain pump (2nd detection).E154RPM feedback error of indoor unit fan motor.E161Mixed operation mode error E162EEPROM error of MICOM (physical problem of parts/circuit).E163Indoor unit's remote controller option input is incorrect or missing.E164Error due to incompatible indoor unit.E180Simultaneous opening of cooling/heating MCU SOL valve (1st detection).E181Simultaneous opening of cooling/heating MCU SOL valve (2nd detection).E185Cross wiring error between communication and power cable of indoor unit.E186Connection error or problem on SPI.E190No temperature changes in EVA IN during pipe inspection or changes seen in…E191No temperature changes in EVA OUT during pipe inspection or changes seen in…E198Error due to disconnected thermal fuse of indoor unit.E201Communication error between indoor and outdoor units (installation number…E202Communication error between indoor and outdoor units (communication error on…E203Communication error between main and sub outdoor units.

View all 141 error codes

E205Communication error on all PBA within the outdoor unit C-Box, communication…E206Internal PCB communication error of outdoor unit C-Box (C001=HUB, C002=FAN…E211MCU branch part setup error E212MCU branch part setup error E213MCU setup error E214Setup error for MCU quantity used E215MCU setup error E216MCU branch part setup error E217MCU branch part setup error E218MCU setup error E219MCU branch part setup error E220More actual indoor unit connections than number assigned to MCU.E221Error on outdoor temperature sensor of outdoor unit (Short or Open).E231Error on COND OUT temperature sensor of main outdoor unit (Short or Open).E237Error on condenser sensor.E241COND OUT sensor is detached from sensor holder.E251Error on digital compressor discharge temperature sensor (Short or Open).E257Error on constant rate compressor discharge temperature sensor (Short or Open).E262Discharge temperature sensor of compressor 1 is detached from sensor holder on…E263Discharge temperature sensor of compressor 2 is detached from sensor holder on…E265Dislocation error of compressor SUMP temperature (oil temperature) sensor.E266Top sensor of compressor 1 is detached.E267Top sensor of compressor 2 is detached.E269Suction temperature sensor breakaway error.E276Error on top sensor of compressor 1 (Short or Open).E277Error on top sensor of compressor 2 (Short or Open).E291Refrigerant leakage or error on high pressure sensor (Short or Open).E296Refrigerant leakage or error on low pressure sensor (Short or Open).E301High pressure sensor is detached.E306Low pressure sensor is detached.E308Error on suction temperature sensor (Short or Open).E311Error on temperature sensor of double layer pipe/liquid pipe (sub heat…E321Error on EVI (ESC) IN temperature sensor (Short or Open).E322Error on EVI (ESC) OUT temperature sensor (Short or Open).E323Error on suction sensor 2 (Short or Open).E346Error due to operation failure of outdoor unit Fan2.E347Motor wire of outdoor unit Fan2 is not connected.E348Lock error on Fan2 of outdoor unit.E353Error due to overheated motor of outdoor unit Fan2.E355Error due to overheated IPM of Fan2.E361Error due to operation failure of inverter compressor 2.E364Error due to over-current of inverter compressor 2.E365V-limit error of inverter compressor 2.E366Error due to over voltage/low voltage of inverter PBA2.E367Error due to unconnected wire of compressor 2.E368Output current sensor error of inverter PBA2.E369DC voltage sensor error of inverter PBA2.E374Heat sink temperature sensor error of inverter PBA2.E378Error due to overcurrent of Fan2.E385Error due to input current of inverter 2.E386Over-voltage/low-voltage error of Fan2.E387Hall IC connection error of Fan2.E389V-limit error on Fan2 of compressor.E393Output current sensor error of Fan2.E396DC voltage sensor error of Fan2.E399Heat sink temperature sensor error of Fan2.E400Error due to overheat caused by contact failure on IPM of Inverter PBA2.E403Comp stop due to freeze detection (6th detection).E407Compressor operation stop due to high pressure protection control (high…E410Compressor operation stop due to low pressure protection control or refrigerant…E413Sump sensor error due to protection control E416Compressor operation stop due to discharge temperature sensor (120°C or more).E4253-phase input wiring error E428Compressor operation stop due to abnormal compression ratio.E438EVI (ESC) EEV leakage or internal leakage of intercooler or incorrect connector…E439Error due to refrigerant leakage E440Heating mode restriction due to high outdoor air temperature (over 30°C).E441Cooling mode restriction due to low outdoor air temperature.E442Refrigerant charging restriction in heating mode when air temperature is over…E443Operation prohibited due to low pressure E445CCH malfunction and sump sensor miswiring error E446Error due to operation failure of outdoor unit Fan1.E447Motor wire of outdoor unit Fan1 is not connected.E448Lock error on Fan1 of outdoor unit.E450Abnormally high temperature on condenser (2nd detection).E451Low pressure switch (2nd detection).E452Error due to ZPC detection circuit problem or power failure (momentary…E453Error due to overheated motor of outdoor unit Fan1.E455Error due to overheated IPM of Fan1 (IPM internal temperature more than 85°C).E458Compressor excess current error E461Error due to operation failure of inverter compressor 1.E462Compressor stop due to full current control or error due to low current on CT2.E464Error due to over-current of inverter compressor 1.E465V-limit error of inverter compressor 1.E466Error due to over voltage/low voltage of inverter PBA1.E467Error due to unconnected wire of compressor 1.E468Output current sensor error of inverter PBA1.E469DC voltage sensor error of inverter PBA1.E474Heat sink temperature sensor error of inverter PBA1.E477Liquid compression prevention control.E478Error due to overcurrent of Fan1.E485Error due to input current of inverter 1.E486Error due to over voltage/low voltage of outdoor fan PCB.E487Hall IC error of Fan1.E489V-limit error on Fan1 of compressor.E493Output current sensor error of Fan1.E496DC voltage sensor error of Fan1.E499Heat sink temperature sensor error of Fan1.E500Error due to overheat caused by contact failure on IPM of Inverter PBA1 (IGBT…E503Error due to self diagnosis E504Error due to self diagnosis of compressor operation.E505Error due to self diagnosis of high pressure sensor.E506Error due to self diagnosis of low pressure sensor.E554Refrigerant leakage (2nd detection).E559Indoor operation stop due to unconfirmed error on outdoor unit.E560Outdoor unit option switch setting error (inappropriate option switch is on).E563Error due to module installation of indoor unit with old software version.E573Error due to using single type outdoor unit in a module installation.E702Error due to closed EEV of indoor unit (1st detection).E703Error due to opened EEV of indoor unit (1st detection).UPTrial operation (commissioning) not completed

Service modes (11)

Commissioning (Auto Trial Operation)Press and hold K1 tact switch on outdoor unit PCB one time for auto trial operation
Cooling Pump DownPress K2 tact switch 3 times on outdoor unit PCB.
Discharge Mode (DC Link Voltage)Press K2 tact switch 6 times on outdoor unit PCB.
Forced Defrost OperationPress K2 tact switch 7 times on outdoor unit PCB (after entering cooling mode key operations, this…
Forced Oil Recovery OperationPress K2 tact switch 8 times on outdoor unit PCB.
Heating Pump OutPress K1 tact switch 3 to 6 times on outdoor unit PCB (3 times = outdoor unit address 1, 4 times =…
Option Setting Mode (Wireless Remote Controller)1) Remove batteries from remote controller
Piping Inspection OperationPress K2 tact switch 4 times on outdoor unit PCB.
Refrigerant Filling Operation (Cooling)Press K2 tact switch one time on outdoor unit PCB.
Refrigerant Filling Operation (Heating)Press K1 tact switch one time on outdoor unit PCB.
Vacuum OperationPress K1 tact switch 7 to 11 times on outdoor unit PCB (7 = address 1, 8 = address 2, 9 = address…

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