Samsung Dryer Error Codes
19 error codes with causes and fixes
- HEHeating system not reaching target exhaust tempHE (hE on some displays) logs when exhaust temperature fails to climb during a heat cycle. Samsung disables the element or gas valve as protection—restricted vent airflow is the most common trigger before any part failure.
- TEExhaust thermistor signal out of rangetE appears when the thermistor on the blower housing reports resistance the board considers impossible—open, shorted, or stuck. Heat cycles abort because Samsung cannot safely regulate exhaust temperature without valid feedback.
- DEDoor switch not confirming closeddE stops the drum and heat because the door switch never reads closed at cycle start. Samsung dryers require a confirmed latch before the motor and heater energize—distinct from washer dE but same door-lock logic.
- FEAC line frequency sensing faultFE is grouped with FC as a Frequency Error—the control detects mains frequency outside tolerance or the sensing circuit failed. Electric dryers on unstable supply or import models on wrong grids see FE at startup.
- AEInternal board communication failureAE (Et, EEE, E3 variants) is a Communication Error between the display, main control, and motor driver. Cycles may freeze mid-dry or show garbled remaining time until the link restores.
- BEJammed touch key on control panelbE displays with capital E on many Samsung dryer panels when a capacitive key reads continuously pressed. Functionally identical to the jammed-button bE family—Samsung uses mixed casing on different firmware builds.
- CECompressor or heat-pump cooling faultCE on Samsung heat-pump and hybrid dryers indicates a cooling error—the refrigerant loop or auxiliary fan cannot shed heat fast enough. Vented electric models rarely show CE; verify your dryer type in the manual.
- EEControl EEPROM memory errorEE signals EEPROM failure on the main control—the stored cycle profiles and calibration data read invalid. The display may show random characters or refuse every cycle until the board passes memory check.
- NFSteam water supply not detectednF (Not Filling) on Samsung steam dryers appears when the steam generator valve opens but no water arrives—similar to washer 4E but for the auxiliary steam line. Non-steam models may show nF for other fill-related faults; confirm steam kit installation.
- HCCabinet overheating during dry cycleHC (hC, HC4, 1 HC) is a Heating Error for over-temperature—the exhaust or cavity temp climbed beyond safe limits. Samsung stops heat and may run the drum to cool down. Restricted airflow causes most HC codes on vented models.
- FCPower frequency out of specificationFC groups with FE as a Frequency Error on Samsung laundry electronics. The inverter or main board detects AC frequency outside the narrow band expected for motor and heat control—common after generator use or bad breaker contacts.
- ACElectronic control communication faultAC (1 AC, AE3 variants) indicates the main PCB cannot exchange data with a sub-module—display, motor driver, or moisture sensor board. The dryer may beep and halt with time frozen on the LED.
- 9C1Abnormal supply voltage detected9C1 (9E, 2E, 9E1 family) logs when incoming voltage is too low, too high, or one leg of 240 V is missing. Electric dryers need both hot lines for heat and motor—single-leg supply triggers 9C1 within seconds of start.
- 9C2Secondary voltage irregularity fault9C2 (9E2, 19C2) is the companion voltage error to 9C1—often logged when voltage recovers briefly then drops again during motor inrush. Samsung protects the inverter by locking out until supply stabilizes.
- DCDoor open during tumble or heatdC means the door circuit opened while the dryer was running—Samsung stops heat and drum for safety when the switch reports open.
- CL9Communication fault with sub-PCBCL9 indicates lost communication between main control and a sub-board—often the display or moisture sensor module on Samsung vented and heat-pump dryers.
- H01Dryer held in delay start modeH01 displays when Delay Start is programmed—the dryer will not begin until the countdown finishes. It is not a heating or vent failure.
- D90Exhaust blocked about 90%d90 is Samsung's vent restriction alert—roughly 90% airflow loss detected. Heat may cut back and clothes stay damp after long cycles.
- 3CDrive motor or inverter fault3C on Samsung dryers means the drive motor or inverter did not achieve commanded speed—drum may not turn or stops mid-cycle.