Samsung Dryer Error Code Ct — Ambient Temperature Out of Range
What this means
The Ct error code appears when the ambient temperature sensor detects the room temperature is outside the dryer's operating range — below 32°F (0°C) or above 104°F (40°C). Samsung dryers are designed to operate within a specific temperature range, and extreme temperatures can affect drying performance and safety. This commonly occurs in unheated garages during winter.
Step-by-step fix
3 stepsCheck the room temperature
Use a thermometer to check the ambient temperature where the dryer is located. Samsung dryers require the room to be between 32°F and 104°F (0°C to 40°C).
Garages, porches, and uninsulated laundry rooms are most prone to extreme temperatures.
Bring the room to operating temperature
If the room is too cold, use a space heater or wait for warmer conditions. If too hot, improve ventilation or use air conditioning.
The dryer itself generates heat during operation, so getting the room just above 32°F may be sufficient.
Restart the dryer
Once the room is within the operating range, restart the dryer. The Ct code should clear.
If the dryer is in an area that regularly drops below freezing, consider relocating it or insulating the space.
When to call a professional
If the room temperature is within the normal range but the Ct error persists, the ambient temperature sensor may be faulty and needs professional testing.
Information compiled from manufacturer service manuals, official troubleshooting documentation, and appliance repair industry resources. This guide is for informational purposes only — always consult a qualified technician for complex repairs.
Learn more about our sourcesParts you may need
Ambient Temperature Sensor
Part #DC32-00008A · $8–$15
If sensor reads incorrectly at room temperature
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