Flow Sense WARNING! – d80 / d90 / d95 message

Should no such indication appear in the display panel window, starting with the obvious, customer should verify the following:

1. Has breaker tripped or fuse blown?
2. If new installation in new house, has contractor completed 220 volt AC connection?
3. If selecting Cotton/Normal cycle, has the Energy Saver mode been deactivated?
4. Could the load size be too small the dryer sensors cannot detect any moisture?
5. Is the lint filter cleaned before every new load?

(even though the dryer powers on, no heat could still be an electrical deficiency. Dryer heater operates at 220 volts 30 amps while the motor, control panel, lights and electronics all work at 110 volts 15 amps ).

Here's a concise summary based on NFPA’s Home Fires Involving Clothes Dryers and Washing Machines report:

SOURCE: NFPA Research

Key Findings from NFPA (2010–2014)

1. U.S. fire departments responded to about 15,970 home fires per year involving clothes dryers or washing machines (safedads.net)
2. These fires resulted in an annual average of:
• 13 civilian deaths
• ~440 civilian injuries
• $238 million in direct property damage (NFPA, cityofsemmesal.gov).
3. Dryers were involved in 92% of those fires; washing machines only about 4–5% (cbfire.com).
4. The top ignition factor in dryer and washer fires was failure to clean—commonly lint or dust buildup contributed to approximately 31–33% of incidents (NASCSP).
5. For dryer fires, the leading ignition sources were dust, lint, or fiber (≈27%) followed by clothing ignition (≈26%).

Recommendations for Fire Prevention

1. Clean lint filters before and after each cycle.
2. Schedule annual vent and duct cleaning.
3. Ensure proper installation with adequate ventilation.
4. Avoid drying items contaminated with flammable substances (e.g., gasoline, oils).

These practices are critical in reducing dryer-related fire risk. Let me know if you'd like tailored safety tips or guidance based on your specific setup.

The Flow Sense warning on your dryer is designed to help avoid reduced performance caused by restrictions from the household exhaust system and alerting of such problem in the system so that it may get fixed. The fix generally involved replacing the venting duct, shortening it or cleaning the inside as you would a chimney.

Moment sensors detect a sudden rise in temperature algorithms quickly establish the rate of exhaust blockage and proceeds to corrective measures (shutting down).

Drying clothes for too long at high heat will scorch the clothing. Fine example of this scorching is the lint collected in the filter trap. Despite catching the bulk of it, some lint will keep going following the moisture out the exhaust venting duct winding clogging the inner surface like plaque in arteries.

Have you ever packed a car tailpipe with snow as a kid then observe the car get started, choke, stall then stop running? Well a dryer whose venting exhaust pipe is clogged does exactly the same. A customer, uninterested by maintenance of the exhaust duct, might suggest making the dryer blower fan more powerful. We don’t want LG dryers to sound like some jet plane airliner in your basement.

In clearing out lint and dust to your vent duct area, you can help your LG dryer run more smoothly, dry clothes faster, and keep your home safer.

Troubleshooting Checklist

1. Safety First
• Unplug dryer
• Shut off gas (if gas dryer)
2. Clean the Lint Filter
• Remove & clean filter
• Wash with soap if coated
• Dry fully before use
3. Inspect the Exhaust Hose
• Disconnect & check for kinks/crushing
• Vacuum out lint
• Keep hose short & straight
4. Clear the Vent Duct
• Brush/vacuum lint along full vent path
• Hire a vent cleaning service if too long
5. Check the Outside Vent Hood
• Flap should open freely
• Remove lint, debris, nests
6. Reconnect & Test
• Use rigid/semi-rigid metal duct
• Run a timed dry (empty drum)
• Feel for strong airflow outside

Indications of Flow Sense Warning Codes

1. d80 → 80% blockage
2. d90 → 90% blockage
3. d95 → 95% blockage (severe)



Remember: These warnings are safety alerts — not dryer malfunctions. Fixing airflow issues usually clears them.

Note Reduced airflow in the dryer will result to risk of fire if ignored.

Symptoms You May Notice

1. Clothes take longer to dry
2. Dryer feels hotter than normal
3. Flow Sense icon & code appear
4. Must run multiple cycles
5. Burning smell (if severe — stop use immediately)

Quick Tips

1. Clean lint filter every load
2. Deep clean vent system every 6–12 months
3. Avoid foil or plastic ducts

Sample Image of Vent Duct

1. Was the exhaust venting pipe cleaned prior to installing the dryer?
   With newly installed dryers, LG highly recommends getting your exhaust venting duct cleaned out. Even if your old dryer was working fine, LG dryers are built to detect vent blockage. This is a safety feature measure because vent blockage can prevent your dryer from properly drying and even cause some serious bodily injuries, clothes scorching or fire hazard.
   
2. Inspect for damage, kinked or crushed vent
   A crushed or damaged exhaust venting duct will also cause air blockage. If possible, check every section of your exhaust venting duct to ensure it is not crushed, kinked or damaged.
   
3. Make sure the vents are installed according to the owner manual's recommendations.
   When the ductwork is too long or has too many bends, blockage can occur, and whatever the blockage, it will be hard to trace. For proper installation, read Installation content in owner’s manual and install the venting duct according to the recommendations.
   
   



4. Check whether wall vent end cap not closed or blocked with a cover.
   In the case of a new house, wall vent end cap covers are sometime closed or clogged. After operating the dryer, check if the air is exhausted through the vent outside the house. If there is no exhaust, please contact the builder and have them correct the exhaust venting duct system.
   

1. Check whether lint filter could be clogged with lint.
   If the dryer filter is clogged with lint, the appliance will detect some air blockage. To clean, pull the lint filter straight up and roll any lint off the filter with your fingers. Push the lint filter firmly back into place. Always make sure the lint filter is clean before starting a new load.
   
   



2. Check for lint buildup at the end of the vent.
   Check for lint buildup at the rear exhaust vent and internal wall venting exit point. If you need the service of a professional technician, contact a local vent cleaning company to clean the vent.
   
   



3. Have you recently pushed or relocated the dryer?
   The actual exhaust venting conduit may have been broken or kinked when the dryer was being recently pushed or repositioned. Make sure there is no breakage or kinks in the exhaust venting conduit.