Last updated: 2026-05-25

🛠️ Can you fix this?

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Medium — Some experience helpful

C4 Samsung Dryer Medium

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

Difficulty: Medium

🔧

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

easy · 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

→

View all Dryer guides →

Other Samsung Error Codes

5E/SE

Dishwasher

Drain error — water not draining properly

→ 4E

Washing Machine

Water supply error — not filling with water

→

Related Resources

🔧 Don't have the right tool? Compare and find it → ToolRecon 💰 Not comfortable DIYing? See what a pro charges → FixrCost

Frequently Asked Questions

What does C4 mean on a Samsung dryer?

Duct thermostat error — overheating detected

Can I fix the C4 error on my Samsung dryer myself?

Yes. This repair is rated "Medium" and the part you need is a Dryer Thermistor. Most homeowners can complete this fix with basic tools. Always disconnect power before starting any repair.

How much does it cost to fix the C4 error on a Samsung dryer?

A service call alone costs $100–200. The Dryer Thermistor is typically much less when you source it yourself — far cheaper than hiring a pro. You'll save the most by doing the swap yourself.