Error Code Ct
Your dryer detected restricted airflow during a vent test
Moderate
Address soon - your appliance may not work properly
Also displayed as: Ct
What This Means
Ambient temperature too extreme for accurate vent test; Dryer was recently operated (still hot inside); Thermistor issue causing incorrect temperature reading
What actually causes this:
The exhaust vent is partially blocked with lint, or the vent run is too long for proper airflow.
First Thing to Check
Check the exhaust vent hose behind the dryer for kinks or lint buildup.
Parts Involved
How to Fix
- 1
1. Leave the dryer at room temperature for sufficient time
- 2
2. Retry the Smart Install vent blockage test
- 3
3. If error persists, check thermistor resistance (10K ohm at 25 degrees C)
This Error Applies To
Samsung DV25B6900E Series Dryers (2024) (2024–present)
Related Error Codes
Your dryer is getting the wrong type of electrical power
The dryer's internal parts aren't communicating properly
Your dryer is getting the wrong voltage from the outlet
Your dryer isn't heating properly or is overheating
Your dryer's temperature sensor isn't reading correctly
A secondary temperature sensor is giving bad readings
The door switch isn't working properly
Your dryer vent is about 80% blocked