LG Vacuum Cleaner Manuals

Vacuum Will Not Turn On

• Battery discharged: Charge the battery fully using the approved LG charging stand, charging dock, or adapter before using the vacuum.
• Battery not installed correctly: Remove and reinstall the battery until it clicks securely into the motor unit.
• Power button not held long enough: Press and hold the power button according to the instructions for your specific model.
• Thermal protection activated: Turn off the vacuum, clear blockages, clean filters, and allow the motor to cool before restarting.
• Charging station has no power: Check the wall outlet, charging cable, dock connection, adapter, and breaker.

Loss of Suction

• Dust bin full: Empty the dust bin before debris reaches the maximum fill line.
• Filters clogged: Clean the pre-filter, fine dust filter, washable filter, exhaust filter, and any cyclone filter according to the model manual.
• Extension pipe blocked: Disconnect the extension pipe, flexible hose, and floor head, then remove trapped dust, hair, paper, or objects.
• Brush head blocked: Remove hair, fibers, thread, and debris from the brush roll and intake opening.
• Dust bin not sealed: Reinstall the dust bin, cyclone assembly, and filters correctly to restore the airtight suction path.

Brush Roll or Floor Head Will Not Spin

• Hair wrapped around brush: Remove the brush roll and carefully clear hair, string, pet fur, and carpet fibers.
• Brush roll installed incorrectly: Reinstall the roller, end caps, and brush cover until all parts lock into position.
• Floor head blockage: Check the intake channel and brush chamber for compacted debris or foreign objects.
• Motorized brush contacts dirty: Clean the electrical contacts between the extension pipe, vacuum body, and motorized floor head with a dry cloth.
• Overload protection active: Turn off the vacuum, remove the blockage, and allow the motorized nozzle to cool before restarting.

LG CordZero™ & A9 Battery Problems

• Battery will not charge: Check the charging adapter, wall outlet, charging stand contacts, and battery seating.
• Short running time: Fully charge the battery, clean filters, clear brush roll obstructions, and use lower suction mode when suitable.
• Battery indicator flashing: Inspect the battery and terminals for dirt, moisture, damage, or overheating.
• Battery becomes hot: Stop charging or using the vacuum, allow the battery to cool, and check for blocked airflow.
• Battery not detected: Remove the battery, clean the terminals with a dry cloth, and reinstall it firmly.

Kompressor™ & Dust Compression Problems

• Kompressor lever difficult to move: Empty the dust bin and remove packed debris from the compression area before using the lever again.
• Dust not compressing: Check that the dust bin is installed correctly and that debris is not blocking the compression plate.
• Dust bin will not detach: Press the release button fully and remove any debris around the locking mechanism.
• Dust spills during emptying: Hold the dust bin upright, open the lid carefully, and empty it slowly into a waste container.
• Reduced suction after compression: Clean the filter assembly and check the cyclone and dust inlet for blockage.

All-in-One Tower™ Problems

• Auto-empty function not working: Confirm the vacuum is seated correctly in the tower and that the charging contacts are aligned.
• Dust bag full: Replace the disposable dust bag when the indicator appears or suction performance decreases.
• Weak tower suction: Check the dust bag, filters, inlet channel, and internal air path for blockage.
• Dust escaping during emptying: Confirm that the dust bag is installed correctly and the tower door is fully closed.
• Tower not powering on: Check the power cord, outlet, adapter connection, and breaker.

LG Robot Vacuum Problems

• Robot will not charge: Confirm the charging dock has power, place it against a wall on a flat surface, and clean the charging contacts.
• Robot cannot find dock: Keep the area around the dock clear, remove obstacles, and ensure the dock remains connected to power.
• Robot stops or beeps: Check the wheels, brush roll, side brushes, sensors, and intake path for hair, dust, or objects.
• Navigation problem: Clean cliff sensors, front sensors, camera, and laser-navigation areas. Remove loose cords, reflective objects, and small obstacles.
• Robot trapped: Clear thresholds, cables, thick rugs, furniture gaps, and uneven surfaces that may prevent the robot from moving freely.

Robot Vacuum Wi-Fi & Smart Features

• Cannot connect to Wi-Fi: Confirm that the home router uses a 2.4 GHz Wi-Fi band and follow the LG ThinQ pairing procedure for your model.
• Vacuum appears offline: Check router power, Wi-Fi coverage near the charging dock, and whether the robot battery is charged.
• Remote control unavailable: Make sure the robot is connected to the network and has completed setup in the LG ThinQ app.
• Map not updating: Clean navigation sensors, keep doors open during mapping, and avoid moving the charging dock during a mapping cycle.

Wet Mop & Hard Floor Attachment Problems

• No water dispensing: Fill the water tank correctly, make sure it is seated properly, and inspect the water outlet for blockage.
• Mop pads not rotating: Check that pads are installed correctly and remove hair, thread, and debris from the rotating pad area.
• Floor streaks: Use clean mop pads, avoid excess cleaning solution, and make additional passes after washing.
• Water leaking: Check the tank cap, water reservoir seal, pad mount, and tank seating. Do not overfill the water tank.

Noise, Odor & Maintenance Tips

• High-pitched sound: This often means airflow is blocked by a full dust bin, clogged filter, blocked pipe, or jammed brush roll.
• Rattling noise: Check the dust bin, extension pipe, brush chamber, hose, and floor head for hard objects.
• Burning smell: Turn off the vacuum immediately. Remove hair buildup, inspect the brush roll, and check filters and air passages.
• Musty odor: Empty the dust bin, wash washable filters if allowed, and dry all components fully before reassembly.
• Routine maintenance: Empty the dust bin, clean filters, remove hair from brush rolls, and inspect accessories after regular use.

Safety note: Always turn off and unplug the vacuum before clearing a blockage, cleaning filters, removing the brush roll, changing a dust bag, or performing maintenance. Do not use the vacuum to collect flammable liquids, hot ash, sharp objects, or hazardous materials.