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Error code reference

Samsung Dryer Error Code 3C

BLDC motor fault detected by drum inverter.

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What the 3C error code actually means

The 3C code means your Samsung dryer's control board has detected a problem with the motor that spins the drum. This could be something as simple as a loose wire connection, or it could point to a faulty motor or control board. The dryer stops running to protect itself from further damage until the problem is identified and fixed.

Diagnostic procedure

The full 3C procedure

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MyPros+ · DiagnosticsStep 1 preview
1
First diagnostic step
Check connector terminal connections and contacts on motor; check motor power cable and power connector on Inverter PBA.
More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
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Most common causes of 3C

Ranked by how often they cause this code
  1. 1Loose or corroded motor connector terminals
  2. 2Damaged or pinched motor power cable
  3. 3Poorly seated or damaged connector on inverter PBA
  4. 4Failed inverter PBA
  5. 5Failed BLDC drum motor

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Questions people ask about 3C

What does 3C mean on a Samsung dryer?
The 3C code indicates that the drum inverter PBA has detected a fault in the brushless DC (BLDC) motor circuit. The inverter monitors motor operation continuously, and this code appears when it detects abnormal current, a loss of motor feedback, or a failure in the power delivery path. The dryer will stop running until the fault is resolved. Common causes include loose connector terminals, a damaged motor power cable, or a failed inverter or motor.
Is it safe to keep using my dryer when the 3C code appears?
No, you should not continue operating the dryer once the 3C code is active. The dryer disables drum rotation specifically to prevent motor or inverter damage from an uncontrolled electrical fault. Running the appliance while the fault is present could worsen the underlying problem and potentially create a safety hazard. Unplug the unit and perform diagnostics before attempting further use.
Will resetting my Samsung dryer clear the 3C error code?
Unplugging the dryer for a few minutes and restarting it may temporarily clear the 3C code, but if the underlying fault is still present, the error will return quickly. A reset is useful for confirming whether the fault is intermittent or persistent, but it does not repair loose connectors, damaged wiring, or failed components. A thorough inspection of the motor connectors, power cable, and inverter PBA connection is necessary to resolve the error permanently.
Can I fix the 3C error on my Samsung dryer myself?
Some causes of the 3C error are DIY-friendly, particularly inspecting and reseating the motor connector terminals and checking the motor power cable for visible damage. These steps require unplugging the dryer and accessing the motor and inverter PBA, which typically involves removing the back or front panel depending on the model. If the problem persists after addressing connectors and wiring, replacing the inverter PBA or BLDC motor is more involved and may be better handled by a technician.
How much does it cost to repair a Samsung dryer with a 3C error?
Repair costs vary depending on the root cause. If the fix is simply reseating a loose connector, the cost is minimal or nothing. A replacement motor power harness typically falls in the range of $20 to $60 for the part. A new inverter PBA generally costs between $80 and $200 depending on the model, and a replacement BLDC motor can range from $100 to $300 or more. Adding professional labor will increase the total estimate significantly.

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