Error Code C90
Your dryer vent is over 90% blocked — needs immediate cleaning
Critical
Stop using immediately - risk of damage or safety issue
Also displayed as: C90 (C9)
What This Means
Severe lint buildup in exhaust ductwork; Nearly fully blocked vent or exhaust hood; Severely crushed or kinked vent hose
What actually causes this:
Severe lint buildup in the exhaust vent is almost completely blocking airflow. This is a fire hazard.
First Thing to Check
Stop using the dryer and check the exhaust vent immediately for heavy lint buildup.
Parts Involved
How to Fix
- 1
1. You must take measures (such as cleaning) through expert personnel
- 2
2. Clean the entire exhaust duct system thoroughly
- 3
3. Inspect for crushed or damaged ductwork and replace if necessary
- 4
4. Verify proper duct installation per requirements
- 5
5. Re-run the Vent Blockage Test
Parts Commonly Needed for This Error
OEM part numbers confirmed by retailers
This Error Applies To
Samsung DVE41A3000 Series Dryers (2020) (2020–present)
Related Error Codes
Your dryer is getting the wrong type of electrical power
A button on the control panel is stuck or shorted
Your dryer isn't heating properly or is overheating
The door switch isn't working properly
Your dryer vent is about 80% blocked
The dryer thinks the door is open while running
Your dryer is getting the wrong voltage from the outlet
The dryer's internal parts aren't communicating properly