Clothes Dryers · troubleshooting
LG dryer d80, d90, or d95: check the airflow path safely
LG says d80/d90/d95 and Flow Sense bars indicate restricted exhaust airflow between the dryer and the outside. It recommends clearing lint from the screen, checking an accessible crushed or kinked exhaust hose, and checking that exterior hood flaps can open. If those checks do not resolve the alert, LG recommends professional dryer-duct cleaning; long or concealed runs are not owner disassembly tasks.
Safety boundary
- Never operate the dryer with the lint filter removed or wet.
- Do not detach hot exhaust ducting or access concealed ducts yourself.
- For gas models, do not disconnect gas or diagnose fuel supply; contact qualified service.
Symptoms this path covers
- LG dryer displays d80, d90, or d95
- Flow Sense shows restriction bars
- Drying time is unusually long or cycle stops
Diagnostic sequence
- Clean and fully dry the lint filter
LG says remove lint between loads; its code guidance allows warm water and a soft brush, then the filter must dry before reinstalling. Reduce an overloaded drum if airflow is blocked by the load.
Stop when: The filter is torn, does not seat, or has a missing/damaged detection magnet on models that use one. - Look behind the dryer only if safely accessible
Check that the visible transition duct is not crushed, kinked, holed, or disconnected. Do not move a heavy dryer without suitable help or access that preserves the duct connection.
Stop when: The appliance must be moved, the duct is damaged, or the vent is concealed. - Observe the outdoor outlet
From outside, check for visible lint and whether an accessible flap can open during operation. Do not insert tools or reach into the duct or hood.
Stop when: The outlet is high, hot, damaged, blocked internally, or unsafe to reach. - Arrange professional duct cleaning
LG says a persistent restriction can require professional cleaning of the household vent. Ask a qualified cleaner to assess long runs and bends; do not open walls or dryer panels.
What the alert means
LG identifies d80/d90/d95 and Flow Sense bars as exhaust-airflow restriction alerts. This warning does not identify a failed heater or motor.
For a gas dryer, keep all fuel-supply checks and connections with qualified service.
Checks and escalation
Start with the clean, dry lint screen and the visibly accessible transition duct. Check the outside outlet only from a safe location and look for a flap that cannot open or visible lint.
LG recommends professional duct cleaning when owner checks do not clear the code. A long or concealed duct route warrants a qualified vent cleaner rather than repeated cycles or cabinet disassembly.