Samsung Dryer Error Codes

Causes:

• The vent thermistor 2 resistance is out of range.

Solutions:

• Check for a clogged lint screen.
• Check if the vent system is restricted.
• Check the sensor bar resistance.
  • with wet clothes: 189 Ω
  • Without clothes: ∞ Ω / OL
• Check the vent thermistor 2 resistance.

• Check for damaged or torn thermistor harness

Causes:

• The compressor thermistor resistance is out of range.

Solutions:

• The compressor temperature sensor resistance is very low or high.
• Check the compressor temperature sensor resistance.

• Check the thermistor voltage at 5 volts, approx.

Causes:

• The vent thermistor 1 resistance is out of range.

Solutions:

• Check for a clogged lint screen.
• Check if the vent system is restricted
• Check the vent thermistor 1 resistance:

• Check for damaged or torn thermistor harness

Causes:

• Vent thermistor resistance is out of range.

Solutions:

• The vent sensor resistance is very low or high.
• Check the vent sensor resistance.

• Check the thermistor voltage at 5 volts, approx.
• Clean the case filter.

Causes:

• Incorrect connections to the BLDC motor
• Faulty BLDC motor fault (Drum Motor)
• Faulty inverter board
• Faulty main board

Solutions:

• Check the connector terminal connections and contacts on the motor.
• Check whether the drum motor power cable and power connector are connected.
• Check the BLDC motor resistance.

• 3C1 is displayed because overloading occurs due to too much laundry.
• Check whether the motor is damaged or not.
• Check whether the motor belt connection has a problem or not.
• If the inverter board is faulty, replace it.
• If the main board is faulty, replace it.

Causes:

• Faulty wire harness.
• Faulty float sensor
• Faulty drain pump motor

Solutions:

• Check the wire harness connector.
• Check if the float sensor circuit is open or shorted.
• Check the drain pump resistance.

Causes:

• Stuck Key.
• A touch key is continuously pressed for over 30 seconds.

Solutions:

• Check if the control panel PCB is loose or short.
• Check if there is a stuck button.
• Check for moisture or damage to the control panel PCB.

Causes:

• The dryer is running with the door open.
• Door closures were not detected.

Solutions:

• Check the door-closing operation.
• Close the door and run the dryer again to see if it resumes the cycle.
• Check if the door switch is defective or loose.
• Check continuity on the door switch terminals:
  1. Door Open:
     • COM to NC: continuity.
     • COM to NO: no continuity.
  2. Door closed:
     • COM to NC: no continuity.
     • COM to NO: continuity.
• Check for damaged or torn Door switch harness.

Causes:

• Invalid heating temperature when running the dryer
• Thermistor resistance is out of range.

Solutions:

• Check for a clogged lint screen.
• Check if the vent system is restricted.
• Check the vent thermistor resistance.

• Check for a damaged or torn thermistor harness.

Causes:

• Dirty condenser coils.
• Clogged evaporator coils.
• The compressor temperature thermistor resistance is out of range.

Solutions:

• Clean the evaporator and/or condenser coils.
• Check the compressor temperature sensor.
• Check the compressor temperature sensor resistance.

• Check the main PCB for sensor pin voltage.
  • 5vdc approx.
• Check the DC fan motor condition.
• Check the main PCB for fan pin voltage.

• Check the compressor winding resistance.
• Check the compressor capacitor.
• sealed system repair. (Freon leakage, clogged capillaries, etc.)

Causes:

• Invalid power source frequency
• Electronic control problem (Invalid Voltage)

Solutions:

• Check if you are using regular power frequencies
• Check the power frequency sensor circuit
• Check voltage across:

Causes:

• The voltage between L1 and L2 supplied to the dryer is maintained at less than 180 VAC for at least 200 ms.

Solutions:

• Check the power cord connection between the dryer and the power cord on the terminal block.
  • If the wrong connection is confirmed on the power cord,
  • Check and confirm again after reconnection.
• Check the voltage at the terminal block on the product: Ll and L2: 240 vac.
  • Ll and NEUTRAL: 120 VAC.
  • L2 and NEUTRAL: 120vac.
• Check connectors at Main PBA (PBA vs. Wire Harness):
  • If any connection is loose, then secure the connection. Check after reconnection.

Causes:

• AC/AE Error Displayed or Saved in Memory
• The unit stops at the beginning of the dry cycle.

Solutions:

• Visually inspect the harness for any damage.
• Make sure CNC804 is properly seated on the main PCB.
• Make sure J3 is properly seated at the sub-PCB.
• On the main PCB, measure the DC voltage going to the sub-PCB.
  • 5VDC to 12VDC
  • If voltage is missing, measure with the connector removed.
  • If it is still missing, replace the main PCB.
• If the unit still has an AC/AE error code, then replace the Sub-PBA.

Solutions:

• Check the connector connections between the WiFi module and main board carefully.
  • Check for incorrect or loose connections, etc.
• Remove the WiFi module and check for any faulty soldering.

Note: This error occurs only in Line Test Mode. After the cycle is finished, Line Test Mode cannot be used.

Solutions:

• Check the wire connections and terminal contacts between the main and inverter PBAs.
• Check for disconnected wires.
• If the main board communication circuit is faulty,
  • replace it.
• If the inverter board communication circuit is faulty,
  • replace it.