Samsung Dryer Won't Stop Running: Vent, Sensor, and Component Diagnosis
Quick Answer
Check if Wrinkle Prevent is active first - it tumbles intermittently after the cycle ends and is not a malfunction. If the dryer truly will not stop, the moisture sensor bars inside the drum may be coated with fabric softener residue, making the dryer think clothes are still wet.
Samsung dryers that won't stop running have a failed moisture sensor (dryer thinks clothes are still wet) or a stuck timer relay. The wrinkle prevent feature also tumbles intermittently after the cycle ends - this is normal, not a fault.
What Does the NOT-TURNING-OFF Code Mean?
Samsung dryer won't stop running: see the detailed brand-specific guide above for Samsung-specific causes and fixes.
Most Likely Causes
Based on aggregated repair data, here is the probability breakdown for this error code:
Symptoms You May Notice
- Samsung Dryer Won't Stop Running issue
- Performance degradation
- May display error code
Can you reset a Samsung dryer to clear the NOT-TURNING-OFF code?
Unplug 60 seconds. Plug in and test.
Tools Required for Diagnosis
Diagnostic Checklist
Follow these steps in order. We start with the easiest external fixes before opening up the machine.
Check the primary cause described in the detailed guide above.
Check the primary cause described in the detailed guide above.
Check for error codes and secondary causes.
Run manufacturer diagnostic mode or call professional.
Frequently Asked Questions
How much does Samsung dryer repair cost?
Repair or replace?
DIY?
Same Fix Works on These Brands
Samsung shares the same hardware platform with these brands. The diagnosis and repair steps are identical.
Last verified for technical accuracy on March 15, 2026