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What this code means
Switch error — Power button is pressed continually for more than 12 seconds, or switch pressed unevenly due to control panel deformation or sub PBA screws tightened too much.
First step from the service manual
Check whether Power switch or tact switch is continually pressed; check if sub PBA holding screws are fastened too tightly.
Next steps: diagnose the root cause
1
Verify the error code is active
Power cycle the unit and see if the code returns. If it does, the fault is persistent and requires diagnosis.
2
Get the full diagnostic procedure
Get step-by-step guidance, test values, and wiring diagrams from the OEM service manual.
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Related Samsung washer error codes
11EEPROM Fault.11CWater level sensor error on the upper washer due to damaged/clogged/folded…11EWater leak abnormal12EPower S/W abnormal13CMotor driving error on the upper washer13ECommunication abnormal14CWater supply error on the upper washer.14C2Water supply error on the upper washer14EButton abnormal15CDrain error on the upper washer18CMEMS PBA error detected on the upper washer.18C1MEMS PBA error detected on the upper washer.18C2MEMS PBA error detected on the upper washer.19C1Power error on the upper washer19C2Power error on the upper washer1ACCommunication error between sub and main PBAs on the upper washer.1AC4Communication error between WiFi module and main PBA on the upper washer.1AC6Communication error between inverter PBA and main PBA on the upper washer.1AC7Communication error between upper washer main PBA and lower washer main PBA…1BC2Switch error (main relay error) on the upper washer1CWater level sensor error caused by damaged/punctured hose, clogged hose, folded…1DCDoor error on the upper washer1DC1Door lock error on the upper washer1DC4Upper washer inner door open error.1EWater level sensor error caused by damaged/clogged/folded sensor hose…1LCWater leakage error on the upper washer.1LC1Water leakage error on the upper washer1OCOverflow error on the upper washer1SFSystem error on the upper washer1SUDFoaming detected on the upper washer1TC1Temperature sensor error on the upper washer1TC4Temperature sensor error on the upper washer1UBUnbalance error on the upper washer29Temperature sensor error2EPower Error3CMotor driving error and hall sensor error caused by disconnected PBA connector…3EMotor driving error and hall sensor error caused by disconnected PBA connector…3E1Motor driving error3E2Weak motor drive signal from PBA, relay instability, or motor Hall sensor…3E3Erroneous operating signals for the motor hall sensor, IPM terminal of the main…3E4PBA connector terminal not connected, motor spin net not engaged, motor…4CWater supply error caused by foreign material entering water supply valve…4C2Water supply temperature check4EWater supply error caused by foreign material in water supply valve…4E/4E2Water is not being supplied to the washer.4E1Water supply error4E2The temperature of water supplied through the dry valve during a dry cycle is…5CDrain error caused by damaged pump motor impeller, wrong voltage supplied to…5C2Drain error (same category as 5C).5EDrain error caused by drain pump impeller damage, wrong voltage part (220V vs…7EWater level sensor software error8CVibration noise during SPIN cycle with small amount of clothes (e.g., 1 bath…8C1Mems PBA check detected8C2Vibration noise during SPIN cycle with small amount of clothes causing…8CA1MEMS PBA wire could be disconnected (external MEMS PBA).8CA2MEMS PBA wire could be disconnected (external MEMS PBA).8CA3Set position may be faulty8CA4MEMS sensor could be faulty.8CB1MEMS PBA wire could be disconnected (external MEMS PBA).8CB2MEMS PBA wire could be disconnected (external MEMS PBA).8CB3Set position may be faulty8CB4MEMS sensor could be faulty.8EMotor error occurring when motor driving is unstable because the motor hall…8E1MEMS sensor error8E2Rear Mems fault9CPower error9C1Power error due to incorrect operating voltage (under or over voltage), use of…9C2Power error due to incorrect operating voltage (under or over voltage), use of…9C5Power error9C6AC power misconnection9C9Ambient temperature overheating of IPM causing power turn off by main relay off…9E1Power error caused by under or over voltage supply, use of plug receptacle…9E1/9E2High/low voltage detected.9E2Power errorACCommunication errorAC1Communication check between sub and main PBAsAC2Communication check error between the DR Module and main PBAs due to…AC3Communication error between Inverter PBA and main PBAAC4Communication check error between the LCD Module and main PBAs due to…AC5Communication check error between the Inverter PBA and main PBA due to…AC6Communication error between the Inverter PBA and main PBA; signals not sensed…AC7Communication error between upper washer main PBA and lower washer main PBA.AECommunication error between sub and main PBAsAE2Communication check between the I/O BoardAE3Communication error between the DR Module and main PBA; signals not sensed due…AE4Communication error between the WIFI Module and main PBA; signals not sensed…AE5Communication error between the LCD Module and main PBA; signals not sensed due…AE6Communication error between the Inverter PBA and main PBA; signals not sensed…Auto-off errorPower does not turn off despite 3 power-off trials by program.BCSwitch error (Main Relay Error)BC2Switch check (Main Relay check) errorbEWater supply errorbE2Switch error (Main Relay Error)bE3Main relay of the PBA is short-circuited, or the main relay terminal is…C/UEWasher detects unbalance 3 times during operation.C1Water level sensor error due to damaged/punctured hose, clogged hose, folded…C2Motor driving check and hall sensor checkC3Water supply checkC4Water supply temperature checkC5Drain checkC6Power checkC7Mems PBA check detectedC8Mems PBA checkCACommunication errorCECooling errorcE/3EMotor/current errorCLChild lock errorCold LED FlashSwitch Code (Main Relay Code)DCDoor error where the door is not opened after door open operation, or not…DC1Door error when the door is not opened after the door open operation; occurs…DC2Door checkdC3Door errorDC4Door checkDC6Auto Open Door is not working properly.DDCAdd door is open; add door open/close switch fault or main PCB fault caused by…dEDoor error caused by deformation of the door hook, door pulled by force, or…dE/dE1The washer did not properly lock the door.dE1Door error where door is not locked after door close operation, caused by…dE2Door errordLDoor error during operationdoorDoor Open ErrorDoor open errorDoor is open during dehydration cycleDrain errorWater level does not decrease to the reset point within 6 minutes from draining…DSDoor error (before operation) caused by switch contact error from deformation…dUThe door will not unlock.EWater supply errorE1Water Supply ErrorE2Switch Error / Main Relay ErrorE3MICOM is attempting to drive the motor but is not getting any response signals…E4Unbalance ErrorE5Water Heater Error (heater does not work)E6Water Heater Error (overheated)E7Pressure Switch ErrorE8Abnormal Water Temperature ErrorE9Water Leakage ErrorEEEEPCB assembly is defective, displayed during Quick Test Mode when model…EtEEPROM input/output error detected during PCB test mode.Extra Large LED FlashMotor Driving CodeFEFan errorFLDoor lock fail errorHCHeater errorHC1Heater errorHC2Heater checkHC3Heater checkHCDDrum overheatingHCPHeater relay overheatingHEHeater relay errorHE1Heater error caused by short-circuited or disconnected washing heater wire…HE2Dryer heater center red overheat temperature sensor activated (above 145°C)HE3Heater errorHot LED FlashDoor codeHot&Cold LED FlashMotor driving code and TMR sensor codeHot&Extra Large LED FlashDoor codeHot&Large LED FlashDoor codeHot&Medium LED FlashTemperature Sensor CodeHot&Small LED FlashWater Supply CodeHot&Tap Cold LED FlashMems PBA code detectedHot&Warm LED FlashUnbalance codeHrHeater Error (Heater Relay)IEPressure switch (single part trouble) errorLarge LED FlashWater Leakage CodeLCWater leakage error caused by heater engagement fault, air hose out of place…LC1Water leakage checkLC2Water leakage checkLEMotor driving error or water leakage errorLE(1E)Leak problem or water level sensor has an abnormal reading.LE1Water leak detectedLODoor unlock fail errorMedium LED FlashOverflow CodeMEMS Sensor ErrorThe output from the MEMS sensor is over 4.5V or under 0.5V and the condition…NCFilter is not inserted correctly.ndDrain error caused by damaged pump motor impeller, wrong voltage supplied, part…nFWater Supply ErrornF1Water supply error caused by foreign material in water supply valve…nGSmart Install ended abnormally or did not run.nHThe hot/cold water hose connection is not correct.OCOverflow error caused by water level sensor fault, continuous water supply due…OEA fault is detected in the water level sensorOE/1EWater level sensor problem.oFOver-Flow abnormalOtSmart Install completed normally (OK).Overflow errorOverflow condition rises three times.PbElectric service was lost when washer was running.PCClutch motor errorPC1Clutch sensor errorPC2Clutch sensor errorPEClutch motor errorPE1Clutch assembly hall sensor errorPFPower error due to under or over voltage supply, use of plug receptacle causing…PHrPower failure notificationSdSuds detected during the washing sessionSDCDoor error (drawer) caused by incorrectly connected or broken door lock switch…SFSystem error on the lower washerSF1System error caused by micro controller operation failure.SF1/SF2/SF3System error.SF2System error caused by micro controller operation failure.SF3System error caused by micro controller operation failure.Small LED FlashDrain codeSRSwitch errorStSystem Error.SUDExcessive foaming detected; displayed while foaming is being removed, after…SUdSToo many suds detected during wash session; unit is put on hold until suds…Tap Cold LED FlashWater level sensor errortCTemperature sensor errorTC1Temperature sensor errorTC2Temperature sensor check errorTC3Temperature sensor error (faulty/incorrect connections of dry condensing sensor…TC4Temperature sensor error on the lower washertC5IPM temperature is abnormally high.TCD1Temperature sensor fault (dry), main PCB fault, or freezing in winter.TCD2Temperature sensor fault (dry), main PCB fault, or freezing in winter.TCFTemperature sensor fault (wash/dry heater), main PCB fault, or freezing in…TCHHumidity sensor faultTCH1Humidity sensor faultTCH2Humidity sensor faultTCH3Humidity sensor faulttETemperature sensor error (washing heater)tE1Duct condensing temperature sensor faulttE2Temperature sensor for the duct assembly fan housing is faulty (internal…tE3Duct condensing temperature sensor is open, has a wire disconnected, or is…TE4IPM temperature is abnormally high.tSTemperature sensor problem.tUHSensor bar is short in tSt or SPn test mode.UbUnbalance errorUB1Unbalance error caused by waterproof items such as tarpaulin or waterproof flat…UcVoltage protection pauseUEDoor open / unbalance errorUnbalance errorAn unbalanced load is sensed three times during dehydration cycle.UrUnbalanced condition; additional rinsing is added during sensing unbalance.Warm LED FlashCommunication CodeWater level sensor errorWater level sensor fails to send signal for longer than 15 seconds.Water supply errorNo frequency change for 60 minutes from water supply.
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