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Samsung C4 Error Code
Duct thermostat error — overheating detected
What Causes the C4 Error?
- Clogged dryer vent
- Failed thermistor
- Blocked lint filter
How to Fix It — Step by Step
Clean the lint filter thoroughly
Check and clean the entire dryer vent duct to the exterior
If vent is clear, test and replace the thermistor
Part Needed: Dryer Thermistor
Source the exact replacement part yourself and skip the technician markup.
Find the Dryer Thermistor on Amazon →This error won't fix itself. The part costs less than a diagnostic visit.
Don't wait — a small part failure can cause cascading damage. Order the Dryer Thermistor and get your Samsung dryer running again today.
Don't ignore this error code.
Ignoring the C4 error on your Samsung dryer can cause further component damage, higher repair costs, or safety hazards. The fix is straightforward — diagnose, order the part, repair.
Dryer Repair Guides
Not Heating
professional-only · 20-30 minutes
Drum Not Turning
medium · 30-45 minutes
Taking Too Long to Dry
easy · 20-30 minutes
Squeaking or Squealing
medium · 45-60 minutes
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Motor lock error — the motor cannot turn the drum
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MEMS sensor error — vibration sensor failure detected
Frequently Asked Questions
What does C4 mean on a Samsung dryer?
Can I fix the C4 error on my Samsung dryer myself?
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Dex A. Varland
Master Appliance Technician · 15+ Years Experience
Dex A. Varland is a master appliance technician with 15+ years of hands-on experience across all major brands. He has diagnosed and repaired thousands of household appliances and contributes to TheFixGuide to help homeowners tackle repairs with confidence.
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