Please read the following installation instructions first after purchasing this product or transporting it to another location.

Product Specifications
The appearance and specifications listed in this manual may vary due to constant product improvements.

Warning
Read all installation instructions completely before installing and operating the dryer! It is important that you review this entire manual before installing and using the dryer. Detailed instructions concerning electrical connections, gas connections, and exhaust requirements are provided on the following pages.
The installation requires:
Do not operate the dryer at temperatures below 45 °F (7 °C). At lower temperatures, the dryer might not shut off at the end of an automatic cycle. This can result in longer drying times. The dryer must not be installed or stored in an area where it will be exposed to water and/or weather. Check code requirements. Some codes limit, or do not permit, installation of the dryer in garages, closets, mobile homes or sleeping quarters. Contact your local building inspector.
NOTE
Installation Spacing for Recessed Area or Closet Installation
The following spacing dimensions are recommended for this dryer. This dryer has been tested for clearances of inch (2.5 cm) on the sides and rear. Recommended clearances should be considered for the following reasons:
Closet Ventilation Requirements
Closets with doors must have both an upper and lower vent to prevent heat and moisture buildup in the closet.
One upper vent opening with a minimum opening of 48 sq. in. (310 cm2 must be installed no lower than 6 feet above the floor. One lower vent opening with a minimum opening of 24 sq. in. (155 cm2 must be installed no more than one foot above the floor. Install vent grills in the door or cut down the door at the top and bottom to form openings. Louvered doors with equivalent ventilation openings are also acceptable.
Installation Spacing for Recessed Area or Closet

Installation Spacing for Cabinet
For cabinet installation with a door, minimum ventilation openings in the top of the cabinet are required.

1 Position the dryer in the final location. Check levelness of dryer from side to side. Repeat from front to back.

2 Use an adjustable wrench to turn the leveling feet. Unscrew the legs to raise the dryer or screw in the legs to lower it. Raise or lower with the leveling feet until the dryer is level from side to side and front to back. Make sure that all four leveling feet are in firm contact with the floor.

If you are installing the dryer on the optional pedestal, you must use the leveling feet on the pedestal to level the dryer. The dryer leveling feet should be fully retracted.
1 Open the door and remove the two plastic hole caps on the catch side by gently prying up with a flat blade screwdriver. Save these for step 6.

2 While supporting the door, remove the 4 screws, two from each hinge. Set the door aside face down on a protected surface to prevent damage to the door or the work surface.

3 With the door on a protected surface, remove all screws on each side of the door and lift off the inner door frame using a flat blade screwdriver. Remove the latch hook and blank and move them to the opposite side.

4 Remove the 4 screws securing the hinges to the door frame. Remove the two plastic cover caps. Reinstall the hinges and cover caps on the opposite sides from which they were removed.

5 With the hinges and cover caps in the new locations, remount the inner door frame onto the outer door frame with the screws removed in step 3 above.

6 Reinstall the door with the screws from steps 1,2.

7 Test the swing of the door to make sure the hinges and latch are properly aligned and that the door closes and latches correctly

Warning
The dryer is shipped to vent to the rear. It can also be configured to vent to the bottom or side (right-side venting is not available on gas models).
An adapter kit, part number 383EEL9001B, may be purchased from an LG retailer. This kit contains the necessary duct components to change the dryer vent location.
1 Remove the rear exhaust duct retaining screw. Pull out the exhaust duct.

Option 1: Side Venting
2 Press the tabs on the knockout and carefully remove the knockout for the desired vent opening (right-side venting is not available on gas models). Press the adapter duct onto the blower housing and secure to the base of the dryer as shown.

3 Preassemble a 4-inch (10.2 cm) elbow to the next 4-inch (10.2 cm) duct section, and secure all joints with duct tape. Be sure that the male end of the elbow faces AWAY from the dryer. Insert the elbow/duct assembly through the side opening and press it onto the adapter duct. Secure it in place with duct tape. Be sure that the male end of the duct protrudes 1½ inches cm) to connect the remaining ductwork. Attach the cover plate to the back of the dryer with the included screw.

Option 2: Bottom Venting
2 Press the adapter duct onto the blower housing and secure it to the base of the dryer as shown.

3 Insert the 4-inch (10.2 cm) elbow through the rear opening and press it onto the adapter duct. Be sure that the male end of the elbow faces down through the hole in the bottom of the dryer. Secure it in place with duct tape. Attach the cover plate to the back of the dryer with the included screw.

Warning: To reduce the risk of fire or explosion, electric shock, property damage, injury to persons or death when using this appliance, follow basic safety precautions, including the following:
Ductwork

NOTE: Follow the guidelines below to maximize drying performance and reduce lint buildup and condensation in the ductwork. Ductwork and fittings are NOT included and must be purchased separately.
Correct Venting

Incorrect Venting

Warning: To reduce the risk of fire or explosion, electric shock, property damage, injury to persons, or death when using this appliance, follow basic safety precautions.
Gas Supply Requirements
Electrical Requirements for Gas Models Only

Connecting the Gas Supply
NOTE: This dryer is configured from the factory for natural gas (NG). If the dryer is to be used with propane (LP) gas, it must be converted by a qualified service technician.
1 Make sure that the gas supply to the laundry room is turned OFF and the dryer is unplugged. Confirm that the type of gas available in your laundry room is appropriate for the dryer.
2 Remove the shipping cap from the gas fitting at the back of the dryer. Be careful not to damage the threads of the gas connector when removing the shipping cap.
3 Connect the dryer to your laundry room’s gas supply using a new flexible stainless steel connector with a 3/8-inch NPT fitting. NOTE: DO NOT use old connectors.
4 Securely tighten all connections between the dryer and your laundry room’s gas supply.
5 Turn on your laundry room’s gas supply.
6 Check all pipe connections (both internal and external) for gas leaks with a noncorrosive leak-detection fluid.
7 Proceed to Venting the Dryer.

High-Altitude Installations
The BTU rating of this dryer is AGA-certified for elevations below 10,000 feet.
If your gas dryer is being installed at an elevation above 10,000 feet, it must be derated by a qualified technician or gas supplier.
Electrical Requirements for Electric Models Only
Warning: To help prevent fire, electric shock, serious injury, or death, the wiring and grounding must conform to the latest edition of the National Electrical Code, ANSI/NFPA 70 and all applicable local regulations. Please contact a qualified electrician to check your home’s wiring and fuses to ensure that your home has adequate electrical power to operate the dryer.
Four-Wire Power Cord

1 Remove the terminal block access cover on the upper back of the dryer.
2 Install a UL-listed strain relief into the power cord through-hole.
3 Thread a 30-amp, 240-volt, 4-wire, UL-listed power cord with #10 AWG-minimum copper conductor through the strain relief.

4 Transfer the dryer’s ground wire from behind the green ground screw to the center screw of the terminal block.
5 Attach the two hot leads of the power cord to the outer terminal block screws.
6 Attach the white neutral wire to the center screw of the terminal block.
7 Attach the power cord ground wire to the green ground screw.
8 Tighten all screws securely.
9 Reinstall the terminal block access cover.

Four-Wire Direct Wire

1 Remove 5 inches (12.7 cm) of the outer covering from the wire. Remove 5 inches (12.7 cm) of insulation from the ground wire. Cut off approximately 1½ inches (3.8 cm) from the other three wires and strip 1 inch (2.5 cm) of insulation from each wire. Bend the ends of the three shorter wires into a hook shape.

2 Remove the terminal block access cover on the upper back of the dryer.
3 Install a UL-listed strain relief into the power cord through-hole.
4 Thread the 4-wire #10 AWG-minimum copper power cable prepared in step 1 through the strain relief.

5 Transfer the dryer’s ground wire from behind the green ground screw to the center screw of the terminal block.
6 Attach the two hot leads of the power cord to the outer terminal block screws.
7 Attach the white neutral wire to the center screw of the terminal block.
8 Attach the power cord ground wire to the green ground screw.
9 Tighten all screws securely.
10 Reinstall the terminal block access cover.

Three-Wire Power Cord
1 Remove the terminal block access cover on the upper back of the dryer.
2 Install a UL-listed strain relief into the power cord through-hole.
3 Thread a 30-amp, 240-volt, 3-wire, UL-listed power cord with #10 AWG-minimum copper conductor through the strain relief.

4 Attach the two hot leads (black and red) of the power cord to the outer terminal block screws.
5 Attach the neutral (white) wire to the center terminal block screw.
NOTE
The dryer is supplied with the neutral conductor grounded. If a 3-wire cord is to be used and is allowed, make sure the white neutral grounding wire is connected to the green ground screw.
6 Connect the external ground (if required by local codes) to the green ground screw.
7 Tighten all screws securely.
8 Reinstall the terminal block access cover.

Three-Wire Direct Wire

1 Remove 3½-inch (8.9 cm) of the outer covering from the wire. Strip 1 inch (2.5 cm) insulation from each wire. Bend the ends of the three wires into a hook shape. cm)

2 Remove the terminal block access cover on the upper back of the dryer.
3 Install a UL-listed strain relief into the power cord through-hole.
4 Thread the 3-wire, #10 AWG-minimum copper conductor power cable prepared in step 1 through the strain relief.

5 Attach the two hot leads (black and red) of the power cord to the outer terminal block screws.
6 Attach the neutral (white) wire to the center terminal block screw.
7 Connect the external ground (if required by local codes) to the green ground screw.
8 Tighten all screws securely.
9 Reinstall the terminal block access cover.

Once you have completed the installation of the dryer and it is in its final location, confirm proper operation with the following tests and the Installation Test (Duct Check) on the following page.
Testing Dryer Heating
GAS MODELS
Close the dryer door, press the POWER button to turn the dryer on, and start the dryer on a heat setting.
When the dryer starts, the igniter should ignite the main burner.
ELECTRIC MODELS
Close the dryer door, press the POWER button to turn the dryer on, and start the dryer on a heat setting.
The exhaust air should be warm after the dryer has been operating for 3 minutes.
Checking Airflow
Effective dryer operation requires proper airflow. The adequacy of the airflow can be measured by evaluating the static pressure. Static pressure in the exhaust duct can be measured with a manometer, placed on the exhaust duct approximately 2 ft. (60.9 cm) from the dryer. Static pressure in the exhaust duct should not exceed 0.6-inch (1.5 cm). The dryer should be checked while the dryer is running with no load.
Checking Levelness
Once the dryer is in its final location, recheck the dryer to be sure it is level. Make sure it is level front to back and side to side, and that all four leveling feet are firmly on the floor.
Checking Venting
Vent ductwork should be checked for lint buildup and cleaned at least once per year. If any noticeable reduction in drying performance occurs, check duct for obstructions and blockages.
Installation Test (Duct Check)
Once you have completed the installation of the dryer, use this test to make sure the condition of the exhaust system is adequate for proper operation of the dryer. This test should be performed to alert you to any serious problems in the exhaust system of your home.
NOTE
The dryer should be cool before starting this test. If the dryer was warmed up during installation, run the AIR DRY cycle for a few minutes to reduce the interior temperature.
To activate the installation test:
1 Remove the drying rack and literature, and then close the door.
Do not load anything in the drum for this test, as in may affect the accuracy of the results.

2 Press and hold the POWER, Temp., and Signal buttons until
and a usage count alternate in the display. (The usage count indicates the number of cycles run with no load during the last cycles.)

3 Press the START/PAUSE button.
The dryer will start the test, which will last about minutes. The heat will be turned on and the temperatures in the drum will be measured and displayed. A chime sounds when the test portion of the cycle is complete.

4 Check the display for results.
Check the display for results. During the test cycle, monitor the Flow Sense™ display on the control panel. If the Flow Sense™ LED is not turned on, when the cycle ends, the exhaust system is adequate. If the exhaust system is severely restricted, the Flow Sense™ LED will be turned on. Other problems may also be shown with error codes. See the chart below for error code details and solutions.

The Flow Sense™ LED indicates that the exhaust system is severely restricted. Have the system checked immediately, as performance will be poor
5 End of cycle.
At the end of the test cycle,
will display. The test cycle will end and the dryer will shut off automatically after a short delay.


If the Flow SenseTM LED is turned on, check the exhaust system for restrictions and damage. Repair or replace the exhaust system as needed.
NOTE
When the dryer is first installed, this test should be performed to alert you to any existing problems with the exhaust duct in your home.
However, since the test performed during normal operation provides more accurate information on the condition of the exhaust duct than does the installation test, the number of bars displayed during the two tests may not be the same.
Do not interrupt the test cycle, as this could result in inaccurate results.
Even if no bars are displayed during the test cycle, some restrictions may still be present in the exhaust system. Refer to the Venting the Dryer section of this manual for complete exhaust system and venting requirements.
Restricted or Blocked Airflow
Avoid long runs or runs with multiple elbows or bends.

Check for blockages and lint buildup.

Make sure the ductwork is not crushed or restricted.

1 Clean the Lint Filter
If the lint filter has not already been cleaned, lift out the filter and remove the lint from the last load. This will help ensure the fastest and most efficient drying performance. Make sure to reinstall the filter, pressing down until it clicks firmly into place.The dryer will not operate without the lint filter in place.

2 Load the Dryer
Load the dryer with the wet laundry from the washer. If the load is extra large, you may need to divide it into smaller loads for proper performance and fabric care.

3 Turn on The Dryer
Press the POWER button to turn ON the dryer. The cycle LEDs will illuminate and a chime will sound.

4 Select a Cycle
Turn the cycle selector knob in either direction until the LED for the desired cycle is on. The preset temperature, dry level, and option settings for that cycle will be shown. Default settings for the selected cycle can now be changed if desired. Refer to the Cycle Setting and Options page for details.
NOTE: Not all options or modifiers are available on all cycles. A different chime will sound and the LED will not come on if the selection is not allowed.

5 Begin the Cycle
Press the START/PAUSE button to begin the cycle. The cycle can be paused at any time either by opening the door or by pressing the START/PAUSE button.
If the cycle is not restarted within 60 minutes of being paused, the dryer will shut off and the settings will be lost.

6 End of Cycle
When the cycle is finished, the chime will sound. Immediately remove your clothing from the dryer to reduce wrinkling. If Wrinkle Care is selected, the dryer will tumble briefly every few minutes to help prevent wrinkles from setting in the clothes.

Always make sure the lint filter is clean before starting a new load; a clogged lint filter will increase drying time. To clean, pull the lint filter straight up and roll any lint off the filter with your fingers. Do not rinse or wash the filter to remove lint. Push the lint filter firmly back into place. See Regular Cleaning for more information.
Always ensure the lint filter is properly installed before running the dryer. Running the dryer with a loose or missing lint filter will damage the dryer and articles in the dryer.

Fabric Care Labels
Most articles of clothing feature fabric care labels that include instructions for proper care.

Group Similar Items
For best results, sort clothes into loads that can be dried with the same drying cycle.
Different fabrics have different care requirements, and some fabrics will dry more quickly than others. For best fabric care results, always dry fabrics with similar care requirements together.
Warning: To reduce the risk of fire, electric shock, or injury to persons when using this appliance, follow basic precautions, including the following:
Loading Tips
Control Panel

1 POWER Button Press to turn the dryer ON. Press again to turn the dryer OFF.
2 Cycle Selector Knob Turn this knob to select the desired cycle. Once the desired cycle has been selected, the standard presets are shown in the display. On Manual Dry cycles, these settings can be adjusted using the cycle modifier buttons any time before starting the cycle.
3 START/PAUSE Button Press this button to start the selected cycle. If the dryer is running, use this button to pause the cycle without losing the current settings.
4 Time and Status Display The display shows the settings, estimated time remaining, options, and status messages for the dryer.
5 MORE TIME/LESS TIME Buttons Use these buttons with the Time Dry and other Manual Dry cycles to adjust the drying time. Press the MORE TIME button to increase the selected manual cycle time by 1 minute; press the LESS TIME button to decrease the cycle time by 1 minute.
6 Cycle Modifier Buttons Use these buttons to select the desired cycle settings for the selected cycle. The current settings are shown in the display. Press the button for that modifier to select other settings.
7 Cycle Option Buttons The option buttons allow you to select additional cycle options. Certain buttons also allow you to activate special functions by pressing and holding the button for 3 seconds.

8 Clean Filter Reminder The display will show Clean Filter when the dryer is turned on as a reminder to check the filter. It turns off when the START/PAUSE button is pressed.
9 Cycle Completion Indicator with Check Filter Reminder This portion of the display shows which stage of the drying cycle is currently underway (Dry, Cool)
10 Estimated Time Remaining This display shows the estimated time remaining for SENSOR DRY cycles or the actual time remaining for Time Dry or MANUAL DRY cycles
11 Flow Sense™ Duct Blockage Sensing System Indicator
The Flow Sense™ duct blockage sensing system detects and alerts you to blockages in the ductwork that reduce exhaust flow from the dryer. Maintaining a clean exhaust system improves operating efficiency and helps minimize service calls, saving you money.
12 Control Lock Indicator When Control Lock is set, the Control Lock indicator appears and all buttons are disabled except the POWER button. This prevents children from changing settings while the dryer is operating.
13 Damp Dry Signal Indicator The dryer will signal when the load is approximately 80% dry. This allows you to remove faster- drying lightweight items or items that you would like to iron or hang while still slightly damp


Sensor dry cycles
Sensor dry cycles utilize LG’s unique dual sensor system to detect and compare the moisture level in clothes and in the air and adjust the drying time as needed to ensure superior results. The dryer automatically sets the dryness level and temperature at the recommended setting for each cycle. The estimated time remaining will be shown in the display.
NOTE
To protect your garments not every dryness level, temperature, or option is available with every cycle. See the Cycle Guide for details.
Manual dry cycles
Use manual dry cycles to select a specific amount of drying time and a drying temperature. When a manual dry cycle is selected, the Estimated Time Remainng display shows the actual time remaining in your cycle. You can change the actual time in the cycle by pressing More Time or Less Time.
Cycle Modifier Buttons
SENSOR DRY cycles have preset settings that are selected automatically. MANUAL DRY cycles have default settings, but you may also customize the settings using the cycle modifier buttons. Press the button for that option to view and select other settings.
Dry Level
Selects the level of dryness for the cycle. Press the Dry Level button repeatedly to scroll through available settings.
Temp.
Adjusts the temperature setting. This allows precise care of your fabrics and garments. Press the Temp. button repeatedly to scroll through available settings.
Time Dry
Allows you to manually select the drying time, from 20 to 60 minutes, in 10-minute increments. Use this for small loads or to remove wrinkles.
More Time/Less Time
Use the More Time/Less Time buttons to add or reduce the drying time of a MANUAL DRY cycle in minute increments.
The dryer features several additional cycle options to customize cycles to meet individual needs. Certain option buttons also feature a special function that can be activated by pressing and holding that option button for 3 seconds. (See Special Functions on the following page for details.)
Adding Cycle Options to a Cycle:
Wrinkle Care
Selecting this option will tumble the load periodically for up to 3 hours after the selected cycle, or until the door is opened. This is helpful in preventing wrinkles when you are unable to remove items from the dryer immediately.
Energy Saver (on some models)
This option helps to reduce energy consumption in the Normal cycle, depending on the load size.
When the Energy Saver option is selected, the cycle begins with an air dry section and the drying time is increased.
NOTE
The Energy Saver option is turned on by default in the Normal cycle. Turn off the Energy Saver option for a faster Normal cycle which begins with heated drying.
Some cycle option buttons also activate secondary functions. These special functions are marked with an asterisk (*). Press and hold the option button marked with the special function to activate it.
Control Lock
Use this option to prevent unwanted use of the dryer or to keep cycle settings from being changed while the dryer is operating.
Press and hold the button marked Control Lock for seconds to activate or deactivate the Control Lock function. The Control Lock icon will be shown in the display, and all controls will be disabled except the POWER button.
NOTE
Once set, Control Lock remains active until it is manually deactivated. Control Lock must be turned off to run another cycle. To deactivate Control Lock, press and hold the Control Lock button for 3 seconds.
Damp Dry Signal
With this option, the dryer will signal when the load is approximately 80% dry. This allows you to remove faster- drying lightweight items or items that you would like to iron or hang while still slightly damp.
Default On/Off
This option allows the Energy Saver settings to be changed. To run a Normal cycle without the Energy Saver option, press and hold the Energy Saver button for three seconds. ON or OFF appears in the display.
SIGNAL
Press and hold the Dry Level button for 3 seconds to adjust the volume of the signal. Press and hold the button repeatedly to adjust the volume of the melody. When no signal is heard, the signal is off. The volume settings are ON – OFF. The signal volume can be adjusted at any time as long as the dryer is turned ON.
Warning
To reduce the risk of fire, electric shock, or injury to persons when using this appliance, follow basic precautions, including the following:
Cleaning the Exterior
Proper care of your dryer can extend its life. The outside of the machine can be cleaned with warm water and a mild, nonabrasive household detergent. Immediately wipe off any spills with a soft, damp cloth.
NOTE
Cleaning the Interior
Wipe around the door opening and seal with a soft, damp cloth to prevent lint and dust buildup that could damage the door seal.
Clean the window with a soft cloth dampened with warm water and a mild, nonabrasive household detergent, then wipe dry.
The stainless steel drum can be cleaned with a conventional stainless steel cleaner, used according to the manufacturer’s specifications. Never use steel wool or abrasive cleansers; they may scratch or damage the surface.
Cleaning Around and Under the Dryer
Vacuum lint and dust from around the dryer and underneath it regularly. Vent ductwork should be checked for lint buildup and cleaned at least once per year. If any noticeable reduction in airflow or drying performance occurs, immediately check ductwork for obstructions and blockages.
Maintaining Ductwork
Vent ductwork should be checked for lint buildup once per month and cleaned at least once per year. If any noticeable reduction in airflow or drying performance occurs, immediately check ductwork for obstructions and blockages. Contact a qualified technician or service provider.
Cleaning the Lint Filter
Always clean the lint from the filter after every cycle.

To clean, open the dryer door and pull the lint filter straight up. Then:
1 For everyday cleaning, roll any lint off the filter with your fingers, or

2 Vacuum the lint filter.

3 If the lint filter has become very dirty or clogged with fabric softener, wash the lint filter in warm, soapy water and allow it to dry thoroughly before reinstalling.

NOTE
NEVER operate the dryer without the lint filter in place. NEVER operate the dryer with a wet lint filter.
Q: When I press a button, why does my dryer beep and then nothing happens?
A: The Control Lock feature is turned on. To turn off Control Lock, turn the dryer on, then press and hold the button that has *Control Lock on or under it for 3 seconds.
Q: Why does my dryer take so long to dry clothes?
A: Proper airflow is critical to the efficient operation of clothes dryers. A lint filter which is full of lint or clogged with fabric softener sheet residue can reduce the airflow to the point that the time required to dry clothing will be greatly increased. Another factor affecting dry time is your home exhaust system. An exhaust system which is dirty and clogged with lint, or is excessively long, needs to be professionally cleaned or repaired.
Q: Why does my dryer start by itself every few minutes?
A: This is how the Wrinkle Care feature works. The dryer runs briefly every few minutes for up to 3 hours after the cycle finishes. This feature is designed to help prevent wrinkles from setting in when the dryer is not unloaded immediately after the cycle is finished.
For further assistance, there are videos and tutorials available through the LG.com website.

This dryer is equipped with an automatic error-monitoring system to detect and diagnose problems at an early stage. If the dryer does not function properly or does not function at all, check the following before you call for service.
Operation
The Flow SenseTM indicator remains active after clearing the restriction in the venting.
Possible Cause
Solutions
Dryer will not turn on
Possible Cause
Solutions
Dryer does not heat
Possible Cause
Solutions
Display show error code nP
Possible Cause
Solutions
Display show error code gAS
Possible Cause
Solutions
Clothes take too long to dry
Possible Cause
Solutions
Clothes take too long to dry
Possible Cause
Solutions
Clothes take too long to dry
Possible Cause
Solutions
Drying time is not consistent
Possible Cause
Solutions
Performance
Greasy or dirty spots on clothes
Possible Cause
Solutions
Clothes are wrinkled
Possible Cause
Solutions
Clothes are shrinking
Possible Cause
Solutions
Lint on clothes
Possible Cause
Solutions
Lint on clothes
Possible Cause
Solutions
Excess static in clothes after drying
Possible Cause
Solutions
Clothes have damp spots after a SENSOR DRY cycle.
Possible Cause
Solutions
Large, bulky items such as blankets or comforters can sometimes wrap themselves into a tight ball of fabric. The outside layers will dry and register on the sensors, while the inner core remains damp. When drying a single bulky item, it may help to pause the cycle once or twice and rearrange the item to unwrap and expose any damp areas.
To dry a few remaining damp items from a very large load or a few damp spots on a large item after a sensor cycle has completed, empty the lint trap, then set a Time Dry cycle to finish drying the item(s).
Error Codes
Error code: tE1 through tE
Display shows error code: PS (electric dryers only)
Flow SenseTM indicator shows four bars during the drying cycle or the display shows "d80" after drying
This warning light is not a dryer failure and is not covered by the dryer warranty. Contact a duct cleaning service to set up an appointment to have your exhaust system cleaned and inspected.
The Flow SenseTM indicator remains active after clearing the restriction in the venting.
indicator light is on during the drying cycle
The display shows d90, d95 
Reference file: LG DLE7000W 7.3 cu. ft. Ultra Large Capacity Top Load Electric Dryer
Additionally, the document applies to other LG Electronics models: DLE7100*, DLG7101*, DLE7100* DLG7101* DLE7150*, DLG7151*, DLE7000*, DLG7001*