Is your Samsung dryer displaying an error code, stopping during a cycle, or refusing to heat or start? The code identifies the system where the dryer detected a problem, such as the door, temperature sensors, heating system, electrical supply, controls or exhaust vent.
Record the full code and dryer model before resetting the appliance. Samsung uses several code variations, and similar-looking characters can represent different conditions.
What do Samsung dryer error codes mean?
Samsung dryer codes identify problems involving the door, stuck control buttons, temperature sensing, overheating, voltage, internal communication or vent airflow. For example, dC and related codes point to a door problem, tC or tS indicates a temperature-sensing condition, and 9C1 or 9E indicates an abnormal electrical supply.
Not every display message means the dryer needs a new part
Vent-test results, firmware-download messages and temporary control interruptions may appear on the display without confirming a failed component. Complete the recommended checks and confirm the code for your exact model before replacing a sensor, heater or control board.
Stop the dryer when heat, gas or electricity creates a safety concern
Turn the dryer off if it overheats, produces a burning smell, trips the breaker, makes electrical arcing sounds, or shows smoke or damaged wiring. Do not continue drying clothing until the cause is identified.
If you smell gas, do not operate switches, plugs, phones or appliances near the dryer. Leave the area and contact the gas utility or emergency services from a safe location.

Quick Samsung Dryer Error Code Guide
Door or latch problem: dC, dE, dF, do, d0, 1 DC or 1 dF
Stuck control button: bE, bE2, bC2, 6E, 6E2 or 6C2
Temperature or sensor problem: tS, t5, tC, tO, t0, tE, tE3, tC5, tCS, 1 tC, 1tC5 or 1tCS
Overheating or heating problem: HC, hE, HC4 or 1 HC
Abnormal voltage: 9C1, 9E, 2E or 9E1
Communication problem: AC, Et, AE, EEE, AE3, AE4, AE5, E3 or 1 AC
Power-frequency problem: FC, FE or 1 FC
Vent blockage test result: Clg, Cl9, Cg, C9, C80, C8o, C8, C90, C9o or Ct
Other model-specific component errors: 3C, oD, 1 AC7 or HC2
What to Check Before Resetting the Dryer
- Record the complete code exactly as displayed.
- Take a photograph of the control panel.
- Locate the model and serial number.
- Note whether the code appeared at startup, during heating or near the end of the cycle.
- Check whether the clothing is unusually hot or still wet.
- Clean the lint screen and inspect the accessible exhaust hose.
- Listen for scraping, grinding, repeated clicking or a motor that hums without turning.
- Complete the safe checks associated with the code before clearing it.
A reset may remove the code temporarily without correcting a blocked vent, failed sensor, damaged door switch, electrical problem or heating-system fault.
Samsung Dryer Door Error Codes
dC, dE, dF, do, d0, 1 DC or 1 dF: Door or Latch Error
The dryer cannot confirm that the door is properly closed, latched or detected by the door-sensing circuit.
What you can check
- Remove clothing caught between the door and cabinet.
- Clean lint from the door opening and latch.
- Check that the latch and strike are securely attached.
- Close the door firmly without slamming it.
- Inspect for visible hinge or door alignment problems.
Do not bend the door strike or bypass the switch. The latch, switch, wiring or control may require testing if the code returns.
Samsung Dryer Button and Control Codes
bE, bE2, bC2, 6E, 6E2 or 6C2: Stuck Button Error
The dryer detects a control-panel button that is stuck, continuously pressed or not returning to its normal position.
- Turn the dryer off.
- Press and release each button individually.
- Wipe the panel with a lightly damp cloth.
- Allow the panel to dry fully before restoring power.
Arrange service if a button is physically damaged, remains depressed or the code returns.
AC, Et, AE, EEE, AE3, AE4, AE5, E3 or 1 AC: Communication Error
One electronic component cannot communicate correctly with another control, sensor or module.
Complete one power reset after recording the code. Persistent communication errors can involve wiring, connectors, the user interface, main control or another connected module.
Do not replace the main control solely because an Et or AE code appears. The connected wiring and components should be tested first.
Samsung Temperature and Heating Error Codes
tS, t5, tC, tO, t0, tE, tE3, tC5, tCS, 1 tC, 1tC5 or 1tCS: Temperature Sensor Error
The dryer is receiving an abnormal temperature reading or cannot monitor temperature correctly.
Possible causes
- Lint screen is heavily restricted
- Exhaust hose or exterior vent is blocked
- Temperature sensor or thermistor is faulty
- Sensor wiring or connector is damaged
- Electronic control is interpreting the reading incorrectly
Clean the lint screen and inspect the accessible exhaust path. Arrange service if the code returns after airflow is restored.
HC, hE, HC4 or 1 HC: Overheating or Heating Error
The dryer detected an abnormal heating condition or temperature that is too high.
Possible causes
- Clogged lint screen
- Restricted exhaust duct or exterior hood
- Crushed or excessively long vent hose
- Heating element, gas burner or ignition problem
- Thermostat, thermal fuse or sensor problem
- Incorrect electrical supply on an electric dryer
Stop using the dryer if clothing becomes unusually hot, the machine smells scorched or the code returns after cleaning the airflow path.
Samsung Voltage and Power-Frequency Codes
9C1, 9E, 2E or 9E1: Abnormal Voltage
The dryer is not receiving the electrical voltage it expects.
- Make sure the dryer is not connected through an extension cord or power bar.
- Check whether the breaker has partially or fully tripped.
- Confirm that an electric dryer has the correct cord and receptacle.
- Arrange electrical testing if the code returns.
Electric dryer circuits carry dangerous voltage. Do not remove the terminal cover or test live wiring unless you are qualified to perform the work.
FC, FE or 1 FC: Invalid Power Frequency
The dryer detected a power-source frequency that does not match its expected electrical supply.
Restart the cycle once after confirming the dryer is connected to the correct household supply. Persistent frequency codes require electrical and control-system testing.
Samsung Vent Blockage Test Codes
Codes such as Clg, Cl9, Cg, C9, C80, C8o, C8, C90, C9o and Ct may appear after a vent-blockage test. They report airflow conditions rather than identifying a single failed dryer part.
C80 or similar 80% result: The exhaust system may be significantly restricted.
C90 or similar 90% result: The exhaust system may be severely restricted and should be addressed before normal drying continues.
Check the complete vent route, including:
- Lint screen and lint-screen housing
- Flexible connector behind the dryer
- Rigid duct inside the wall or ceiling
- Exterior vent hood and damper
- Bird nests, lint accumulation or crushed ducting
- Excessive duct length or too many sharp turns
Other Samsung Dryer Messages and Model-Specific Codes
dn: Firmware Download
The dryer is downloading or installing firmware.
Do not unplug the dryer while the update is active. Arrange support if the message remains for more than 24 hours or the appliance does not return to normal operation.
3C, oD, 1 AC7 or HC2: Model-Specific Component Error
These codes can involve sensors, motors, communication circuits or other components depending on the dryer model.
Record the code, complete one power reset and check the owner’s manual. Do not assume oD means the clothing was simply over-dried; Samsung currently groups it with model-specific sensor and component conditions.
How to Reset a Samsung Dryer
A reset can clear a temporary electronic interruption, but it cannot repair a blocked vent, damaged switch, failed temperature sensor, heating problem or incorrect electrical supply.
- Record the complete code.
- Complete the safe checks associated with that code.
- Turn the dryer off.
- Unplug it or switch off its dedicated breaker.
- Wait approximately one to five minutes.
- Restore power.
- Run a short test cycle and watch whether the code returns.
Do not repeatedly reset overheating, voltage, vent-blockage or communication errors. A returning code means the dryer is still detecting the condition.
What Not to Do When a Samsung Dryer Shows an Error
- Do not reset the dryer before recording the code.
- Do not keep running a dryer that overheats.
- Do not operate the dryer with a severely restricted vent.
- Do not bypass the door switch, thermostat or thermal fuse.
- Do not remove the electrical terminal cover while power is connected.
- Do not use an extension cord or power bar.
- Do not use foil or thin plastic ducting as a permanent exhaust connection.
- Do not use the dryer when you smell gas.
- Do not replace a control board before the connected sensors and wiring are tested.
When to Call a Samsung Dryer Repair Technician
Cleaning the lint screen, checking the accessible vent, removing door obstructions and completing one reset are reasonable first steps. Professional service is recommended when:
- The same code returns after the recommended checks.
- The dryer overheats or clothing becomes unusually hot.
- The dryer runs but does not heat.
- The door will not latch or remain closed.
- The drum does not turn or makes grinding sounds.
- A temperature, heating or communication code persists.
- A voltage code returns after the electrical supply is checked.
- The vent test reports a severe restriction.
- The breaker trips or the outlet becomes hot.
- You smell gas, burning or scorched insulation.
Alpha Tech provides Samsung appliance repair and dryer repair in Toronto and the GTA
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What a Technician Checks During the Service Visit
The technician will confirm the code, dryer model and point in the cycle where the problem appears. Mention whether the dryer is gas or electric, how long drying takes, and whether the clothing becomes unusually hot.
- Lint screen, blower housing and complete exhaust airflow
- Door latch, switch and wiring
- Temperature sensors and thermistors
- Heating element or gas burner and ignition system
- Thermostats and thermal safety devices
- Motor, belt, drum rollers and blower wheel
- Electrical voltage and terminal connections
- Control-panel buttons and user interface
- Wiring, connectors and main electronic control
Testing the complete affected system helps avoid replacing a heater, sensor or control board based only on the displayed code.
Check the Instructions for Your Samsung Dryer Model
Code meanings and reset procedures can differ between dryer models. Use the complete model number when reviewing manufacturer instructions.
Related Samsung Error Code Guide
Frequently Asked Questions
What does dC mean on a Samsung dryer?
dC means the dryer cannot confirm that the door is securely closed. Remove trapped clothing and lint, inspect the latch and close the door firmly.
What does tC mean on a Samsung dryer?
tC indicates an abnormal temperature-sensor reading. Clean the lint screen and exhaust system first. A returning code may require sensor, wiring or control diagnosis.
What does HC mean on a Samsung dryer?
HC indicates an overheating or heating-system condition. Clean the lint screen and vent, then stop using the dryer if it remains unusually hot or the code returns.
What does 9C1 mean on a Samsung dryer?
9C1 means the dryer detected an abnormal voltage supply. Confirm that it is connected to the correct dedicated circuit without an extension cord or power bar.
What does C90 mean on a Samsung dryer?
C90 is a vent-blockage test result indicating a severe exhaust restriction. Clean and inspect the complete vent route before continuing normal dryer use.
Is oD a normal Samsung dryer message?
Do not assume it is normal. Samsung currently groups oD with model-specific sensor and component conditions. Record the code and check the manual for the exact dryer model.
How do I reset a Samsung dryer error code?
Record the code and complete the relevant checks first. Turn the dryer off, disconnect power for approximately one to five minutes, restore power and run a short test cycle.
When should I call a Samsung dryer technician?
Book service when a code returns after safe troubleshooting, the dryer overheats, will not heat or turn, repeatedly trips the breaker, or displays a recurring voltage, sensor, heating or communication error.
Is Your Samsung Dryer Code Still Returning?
A dryer code identifies the affected system, but testing may be needed to determine whether the cause is airflow, a sensor, heating component, door switch, electrical supply, wire or control.
Alpha Tech Appliance provides Samsung dryer diagnosis and repair for homeowners across Toronto and the GTA.