d95
LG Dryer
Severity: CriticalWhat Does This Error Mean?
The d95 error means your LG dryer's flow sensor has detected that the exhaust vent is approximately 95% blocked. This is a serious warning — severely restricted airflow causes overheating and is a leading cause of dryer fires. Clean the full vent system immediately before running another load.
Affected Models
- DLEX3900W
- DLGX3901V
- DLEX5500V
- DLEX7900BE
- LG dryers with FlowSense duct clogging indicator
Common Causes
- Accumulated lint inside the dryer vent hose has nearly blocked airflow completely
- The exterior vent cap flap is stuck shut or blocked by debris
- The vent hose is kinked or crushed behind the dryer, restricting airflow
- The vent run is too long or has too many bends, causing lint to build up faster
- The vent hose material is corrugated foil — this type traps lint more easily than rigid duct
How to Fix It
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Stop using the dryer immediately until the vent is cleaned.
A 95% blocked vent is a fire hazard. Do not run another cycle until this is resolved.
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Pull the dryer away from the wall and disconnect the vent hose from the back.
Most hoses attach with a clamp or tape. Have a bag ready to catch lint that falls out.
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Clean the vent hose thoroughly using a dryer vent brush kit.
Push the brush through the full length of the hose. Most kits have extendable rods for longer runs.
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Go outside and clean the exterior vent cap.
Remove lint from around the flap. Confirm the flap opens freely when you blow into the duct.
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Reconnect the vent hose and run an air-only (no heat) cycle to confirm airflow.
LG's FlowSense indicator should show a lower reading. If d95 returns, the blockage is inside the wall — call a professional.
When to Call a Professional
If cleaning the vent does not clear d95, the vent system may have a more complex blockage deeper in the wall. A professional dryer vent cleaning service can snake the entire duct run for $80–$150. They can also replace flexible foil hose with proper rigid duct if needed.
Frequently Asked Questions
What is LG FlowSense and how does it work?
FlowSense is LG's vent monitoring system built into select models. It measures exhaust airflow during operation. When airflow drops below a threshold, it shows d80, d90, or d95 to indicate how blocked the vent is. D95 is the most severe — essentially a full blockage.
How often should I clean my dryer vent to prevent d95?
Clean the full vent duct at least once a year. If your household does five or more loads of laundry per week, clean it every six months. Always clean the lint trap before every load. Using a rigid metal duct instead of a flexible foil hose also reduces lint buildup significantly.
Can a clogged vent really cause a dryer fire?
Yes — dryer fires are a real and common hazard. The U.S. Fire Administration reports roughly 2,900 dryer fires per year. The leading cause is failure to clean the dryer vent. D95 is your dryer warning you that it is on the verge of a dangerous condition. Take it seriously.