On this page
Start here
Quick answer
LG identifies the DLE6100W as an electric Sensor Dry dryer with a FlowSense duct-clogging indicator. If Flow Sense is blinking and a newly installed dryer leaves clothes damp, treat the indication as an airflow warning first, not as proof that a dryer part has failed. With the dryer off and cool, confirm the full model label, clean and reseat the lint filter, then inspect the newly connected exhaust hose, wall connection, and outside termination for a crush, kink, loose joint, obstruction, or closed flap. LG's installation guidance also calls for a short, straight or S-shaped exhaust route without plastic or vinyl ducting. If the warning remains, d90/d95 appears, the outside termination cannot be checked safely, or the concealed run may not meet the installation requirements, stop heated use and have the installer or a qualified vent professional inspect it. If there is no normal heat or an nP/PS message, leave this electric dryer off and contact the installer, an electrician, or qualified LG service; do not open panels or measure live wiring.
Before you begin
Safety first
- Keep the DLE6100W off and cool before external checks. Do not bypass Flow Sense, run heated cycles through a suspected restriction, open the cabinet or terminal cover, reach into a wall duct, measure live voltage, or alter the cord, heater, or controls.

Work through in order
Diagnostic checks
Use only checks that match the exact appliance or system and its official guide.
-
Check 1
Turn the DLE6100W off, let it cool, and record the exact display or indicator pattern before changing anything. Confirm the rating label says DLE6100W (including any suffix), and note whether the drum tumbles, whether there is normal warmth, whether the cycle ends early or runs long, and whether the warning is Flow Sense alone or accompanied by d80, d90, or d95.
Expected result: The label matches DLE6100W and the unit tumbles with damp clothes and a Flow Sense indication, or the model/indicator is different or unclear.
Next step: Keep the label and display photo for the installer or service provider. If the model or indicator cannot be confirmed, stop at symptom-level checks and use the exact manual rather than borrowing a button sequence or code meaning from another LG model.
Stop if: Stop immediately for smoke, burning odor, sparks, a hot or damaged cord, water near the outlet, unusual heat, or a breaker that trips again.
Why this matters
Why: The DLE6100W is an electric Sensor Dry dryer with FlowSense duct-clogging and lint indicators. Damp clothes with an airflow indication point first to exhaust performance; an unclear label or different display prevents safe model-specific interpretation.
-
Check 2
With the dryer off and cool, clean the lint filter as the DLE6100W manual directs and reinstall it fully. From ordinary safe access, inspect the new exhaust connection behind the dryer for a loose joint, hole, crush, kink, or compression; the hose should be straight or in an S curve rather than coiled tightly against the wall.
Expected result: The filter is coated or not seated, or the new hose is crushed, kinked, loose, damaged, or forced into a tight coil; alternatively, the accessible filter and hose look clear.
Next step: Clean and dry the filter, then have the installer correct a damaged or compressed hose. If the visible section is clear, continue with the outside-termination and installation-path check rather than replacing a dryer part.
Stop if: Do not run a heated cycle with a disconnected or damaged exhaust hose, reach into the duct, open the cabinet, or pull the appliance out if doing so would strain the cord or exhaust connection.
Why this matters
Why: Lint at the filter and restriction at the first exhaust connection can keep moist air in the drum and trigger Flow Sense. A clean filter and clear visible hose do not prove that the wall run or exterior termination is clear.
-
Check 3
Inspect the outside exhaust termination only from a safe, ordinary-access position. Look for visible lint, debris, a stuck flap, a cap blocked by a screen or object, or no obvious discharge path. Compare the installation with LG's requirements for a short route, a straight or S-shaped duct, no plastic or vinyl ducting, and a home run within the stated length and elbow limits; do not open a wall or dismantle the duct.
Expected result: The outside flap is blocked or cannot open, there is little or no visible discharge when the installer provides a safe permitted airflow observation, the route is unusually long or elbow-heavy, or the run cannot be inspected without moving the appliance or opening a wall.
Next step: Keep heated drying off and ask the installer or a professional vent cleaner to inspect and correct the complete run and exterior cap against the DLE6100W installation documentation. Do not assume a clear short hose proves the concealed duct is acceptable.
Stop if: Do not climb, remove an exterior cap, reach into the wall duct, use improvised ducting, or continue cycles to force airflow through a suspected restriction.
Why this matters
Why: The warning can be caused beyond the dryer: LG names a closed or damaged outside exhaust, home-duct blockage, and incompatible installation as restricted-airflow causes. A new appliance does not make a new wall run correct by itself.
-
Check 4
If the DLE6100W owner's manual confirms the installation-test controls for the exact suffix, run that no-load test only with the dryer cool and empty. Do not copy a button pair from a different model family. Watch whether Flow Sense stays off or turns on and record the test's temperature behavior and any displayed code.
Expected result: The test leaves Flow Sense off and shows normal temperature behavior, turns Flow Sense on or reports a venting result, shows no temperature increase, or produces another code.
Next step: For a venting result, stop heated use and give the installer the result. For no temperature increase or an electrical code, leave the electric dryer off and contact the installer, licensed electrician, or LG service; use the exact DLE6100W manual for any further model-specific step.
Stop if: Do not run the test with clothes loaded, bypass Flow Sense, defeat a safety control, open panels, or perform live electrical measurements.
Why this matters
Why: LG says the installation check evaluates the exhaust system: an LED that stays off indicates adequate exhaust, while a restricted result can come from a dirty filter, crushed exhaust, closed or damaged outside exhaust, blocked home duct, or incompatible installation. No temperature increase or an electrical code points away from a simple vent-only explanation.
-
Check 5
If the display shows d80, d90, or d95, or the Flow Sense bars remain lit after the accessible filter and hose check, photograph the display and keep the dryer out of heated operation. If it instead shows nP or PS or produces no normal heat, inspect only the plug and clearly labeled breaker from a dry, safe position without removing covers.
Expected result: A d80/d90/d95 or severe Flow Sense indication persists, or nP/PS/no-heat appears with the plug and breaker externally intact or abnormal.
Next step: For persistent airflow warnings, arrange a professional vent inspection. For nP, PS, no heat, a damaged cord/outlet, or a breaker that will not stay on, leave the dryer off and contact the installer, licensed electrician, or qualified appliance service.
Stop if: Do not reset repeatedly, remove a terminal cover, measure live voltage, bypass a breaker or warning, or continue long heated cycles while the exhaust warning remains.
Why this matters
Why: LG describes d80/d90/d95 and severe Flow Sense bars as restricted exhaust indications; d90/d95 can end a cycle while clothes remain damp. LG associates nP with no current at the heater and PS with improper power-cord voltage, and specifically directs owners of a newly installed dryer to have the installer check the cord and wall outlet.
-
Check 6
Only after the installation path is confirmed clear, the warning is absent, and there is no safety symptom, compare one moderate load that completed its washer spin on a suitable Sensor Dry cycle with the exact manual's permitted Manual or Time Dry option. Separate thick items from thin items and avoid using one tiny item as the only test load.
Expected result: A correctly sized load dries normally, Sensor Dry ends early while Time Dry heats and tumbles, or both settings leave the load damp or lack normal heat.
Next step: Correct the load or cycle when the controlled comparison supports that explanation. Otherwise stop repeated testing and give LG or qualified service the exact model, display photo, installation-test result, load, cycle, airflow observations, and heat behavior.
Stop if: Stop if clothing becomes scorched or unusually hot, smoke or odor appears, the Flow Sense warning returns, or the dryer behaves abnormally.
Why this matters
Why: A normal result after the vent correction supports an installation airflow cause. If only Sensor Dry ends early, load contact or cycle selection is more likely; if both settings fail after clear airflow, a heating, sensor, control, or another model-specific fault remains possible and cannot be identified safely from symptoms alone.
Use your observations
Decision map
Find the observation that best matches what you see, then follow the next safe action.
-
PATH 01Next step
What you see
Flow Sense appears from the first loads after installation and the hose is crushed, kinked, loose, the outside flap is blocked, or the new route does not meet LG's vent requirements.
Do this next
Stop heated use and have the installer or a qualified vent professional correct and inspect the complete route, including the concealed duct and outside termination.
Why this path and its safety boundary
Why it matters: The installation exhaust path is more likely than an unproven internal part failure. LG identifies these conditions as restricted-airflow causes and says restricted airflow can keep the heater from running for the full cycle.
-
PATH 02Next step
What you see
The visible filter, hose, and outside termination are clear, but the Flow Sense warning or d80/d90/d95 returns, or the wall run cannot be inspected safely.
Do this next
Keep the dryer out of heated operation and request a professional vent inspection against the DLE6100W installation requirements; do not open the wall or cabinet to investigate.
Why this path and its safety boundary
Why it matters: The remaining restriction may be inside the home ventilation path or may reflect an incompatible installation. A clear rear hose does not clear a concealed run.
-
PATH 03Next step
What you see
The installation test shows no Flow Sense warning and normal temperature behavior, and a properly spun moderate load dries normally after the hose and filter are correctly installed.
Do this next
Keep the duct path straight and accessible, use the model-approved load and cycle, and retain the installation result if the problem recurs.
Why this path and its safety boundary
Why it matters: The original poor drying was consistent with the new installation or load setup rather than evidence that a dryer component needs replacement. A normal test does not justify installing a speculative part.
-
PATH 04Next step
What you see
The vent path is confirmed clear but the installation test shows no temperature increase, or the DLE6100W displays nP/PS, has no normal heat, or trips the breaker.
Do this next
Leave the electric dryer off and contact the installer, licensed electrician, or qualified LG appliance service with the full model, code, cord/outlet observations, and test result.
Why this path and its safety boundary
Why it matters: The result points away from a simple airflow restriction and toward the electric supply, cord installation, heater-current path, or another service-level fault. The exact cause cannot be established from an external symptom.
-
PATH 05Next step
What you see
There is smoke, a burning smell, sparking, visible heat damage, a hot or damaged cord, water near the outlet, or any repeated breaker trip.
Do this next
Stop using the dryer and isolate power only from a safe, dry position if that can be done without entering a hazardous area. Arrange emergency, electrical, or qualified appliance help as appropriate; do not retry the cycle.
Why this path and its safety boundary
Why it matters: This is an electrical, fire, or shock safety event, not a routine Flow Sense or drying adjustment.
Helpful context
Understand the symptom
The assigned appliance identity matters here: LG's U.S. support page lists DLE6100W.ABWEUUS as a 7.3 cu. ft. rear-control electric dryer with Sensor Dry, while LG's product page identifies FlowSense as a duct-clogging and lint indicator. A DLE6100W is not the gas version, so do not apply gas-supply explanations to this model. A full suffix on the rating label is still worth recording for service and manual matching.
A Flow Sense warning that starts immediately after installation changes the first decision: inspect the installation path before treating the dryer as an internal failure. LG lists a crushed or kinked hose, a closed or damaged outside exhaust, blocked home ductwork, and incompatible duct installation as causes of restricted-airflow test results. A warning that survives an accessible check is a reason to stop heated drying and escalate the concealed or inaccessible portion of the run.
When checks do not resolve it
Need a professional?
Request installer or vent-professional service for a new-installation airflow warning that persists or an inaccessible/incorrect duct route. Request electrician or LG appliance service for nP, PS, no heat, repeated breaker trips, damaged electrical parts, or a failed temperature result.
Safety scope: Keep the DLE6100W off and cool before external checks. Do not bypass Flow Sense, run heated cycles through a suspected restriction, open the cabinet or terminal cover, reach into a wall duct, measure live voltage, or alter the cord, heater, or controls.
Have this ready
- Provide the full DLE6100W rating-label model and suffix, purchase/installation date, exact indicator or code, load and cycle, whether the drum tumbles and warms, photos of the accessible hose and outside termination, and any installation-test result.
Common questions
FAQ
Does a blinking Flow Sense light mean the new LG DLE6100W needs a replacement part?
No. LG defines Flow Sense as a duct-clogging/airflow warning, so first check the lint filter, the newly connected hose, and the outside termination. A persistent warning can come from the concealed home duct or an incompatible installation; it does not identify a heater, sensor, or other part by itself.
What should be checked first when an LG DLE6100W is not drying after installation?
With the dryer off and cool, confirm the full model label, clean and reseat the lint filter, and inspect the rear exhaust connection for a crush, kink, loose joint, or compression. Then inspect the outside flap/cap and have the installer verify the concealed route against LG's vent requirements. The new installation changes the first check to the complete exhaust path.
Can I use an LG installation-test button sequence found for another dryer?
Do not. LG says the button combination varies by model family. Use only the combination documented for the exact DLE6100W suffix in its owner material, with the drum empty and the dryer cool; otherwise have the installer or LG service perform the check.
What does d90 or d95 mean on this new electric dryer?
LG describes d90 and d95 as severe exhaust restrictions, expressed as 90% or 95% blockage. They can leave clothes damp and end drying, so keep heated use off and have the entire exhaust path inspected rather than bypassing the warning.
What if the exhaust is clear but the DLE6100W has no heat or shows nP/PS?
Leave the electric dryer off. LG associates nP with no current detected at the heater and PS with improper power-cord voltage, and directs owners of a newly installed dryer to have the installer check the cord and wall outlet. Use a licensed electrician or qualified appliance service; do not remove covers or measure live wiring.
Read the exact guide
Official sources
- LG DLE6100W.ABWEUUS Support, Manuals, Warranty & MoreLG USA · Exact LG support page for the assigned DLE6100W electric dryer variant; it links the owner manual and model-specific support resources.
- Installation Check - Laundry DryerLG USA · Official LG dryer installation-check guidance. Button combinations are model-family dependent, so the article requires the exact DLE6100W owner material before running the test.
- LG Dryer - Error Code ListLG USA · Official LG dryer code guidance used for the airflow-warning meaning, installation-first branch, and electric no-heat boundary; gas-specific notes are not applied to the DLE6100W.
- LG Dryer – Proper Venting and Installation TipsLG USA · LG's official dryer installation guidance for the duct and home ventilation path; used for the new-installation exhaust checks, not for internal repair conclusions.
- 7.3 cu. ft. Rear Control Electric Dryer - DLE6100WLG USA · Exact product page for DLE6100W; it identifies Sensor Dry, FlowSense indicators, and electric fuel type.
Community feedback
Share a repair observation
Share a plain-text repair observation. Accepted observations are published automatically; this page may take a moment to update.