LG Refrigerator Model LMX25981ST Manual

The LG Refrigerator Model LMX25981ST is a 25 cubic foot French Door refrigerator with an external water and ice dispenser, Smart Cooling Plus™ system, Smart Diagnosis™, Door Cooling+™, LED lighting, and linear compressor. It features adjustable shelves, humidity-controlled crispers, a full-width pantry drawer, and gallon door bins. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Settings 6. Connecting Water Line 7. Using the Dispenser 8. Smart Features 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: French doors, external ice and water dispenser, linear compressor, Smart Cooling Plus system, LED interior lighting, Door Cooling+ vents.

Feature	Description
External Dispenser	Provides chilled water and ice (cubed or crushed)
Smart Cooling Plus™	Maintains consistent temperature and humidity
Door Cooling+™	Vents cool air into door bins to keep items colder
Linear Compressor	Energy-efficient and quiet operation
LED Lighting	Bright, energy-saving interior lights
Adjustable Shelves	Spill-proof tempered glass shelves
Humidity Control Crispers	Preserve freshness of fruits and vegetables
Full-Width Pantry Drawer	Large storage for deli items or snacks
Gallon Door Bins	Hold large containers and bottles
Smart Diagnosis™	Helps diagnose issues via phone app or sound

Installation

Unpack and inspect contents. Place on level floor.

Remove packaging: Take off all tape, foam, and protective film.
Position refrigerator: Allow at least 2 inches of clearance on sides and back for ventilation.
Level the unit: Adjust front leveling legs to ensure doors close properly.
Connect water line: For ice/water dispenser (see Connecting Water Line section).
Plug into dedicated 120V AC outlet.

WARNING! Refrigerator is heavy; use two people to move. Ensure floor can support weight.

First-Time Setup

Plug in refrigerator; allow 24 hours for cooling.

Set temperature: Press TEMP buttons to set fridge to 37°F and freezer to 0°F (default).
Enable ice maker: Lift wire signal arm to ON position.
Run first ice cycle: Discard first batch of ice (about 24 hours).
Adjust shelves and bins: Configure interior to suit your needs.
Connect to SmartThinQ app (optional): Download app and follow pairing instructions.

CAUTION! Do not load food until refrigerator reaches proper temperature.

Specifications

Capacity: 25 cubic feet total (fresh food: 16.5 cu ft, freezer: 8.5 cu ft).
Dimensions (HxWxD): 69.875" x 35.75" x 34.75".
Door Style: French doors with bottom freezer drawer.
Dispenser: Ice and water through door.
Compressor: Linear inverter compressor (10-year warranty).
Defrost System: Frost-free for both compartments.
Energy Star: Yes, meets ENERGY STAR® requirements.
Power Source: 120V AC, 60Hz, 15A dedicated circuit.
Water Filter: LT1000P (replace every 6 months).

Controls and Settings

Access controls via control panel on dispenser or SmartThinQ app.

Control Panel: Power Cool, Power Freeze, Temp Adjust (Fridge/Freezer), Ice Type (Cubed/Crushed), Lock, Filter Reset.

Temperature Settings: Fridge (34°F–46°F), Freezer (-6°F–6°F). Power Cool/Freeze: Rapidly cools for 3 hours. Ice Type: Select cubed or crushed. Lock: Child lock for dispenser and controls. Filter Reset: Reset after changing water filter. SmartThinQ App: Remote control, diagnostics, energy monitoring, alerts.

Connecting Water Line

Required for ice maker and water dispenser.

Turn off main water supply.
Connect 1/4" copper or plastic water line to cold water pipe.
Run line to refrigerator location (max 20 ft for 1/4" line).
Connect to refrigerator inlet valve at back (typically bottom left).
Turn on water and check for leaks.
Flush line by dispensing water for 3 minutes.

Tip: Use an approved water line kit and shut-off valve. Ensure connections are tight.

Using the Dispenser

Provides chilled water and ice.

Water: Press glass against water paddle; release to stop.
Ice: Press glass against ice paddle; select cubed or crushed via button.
Dispenser Lock: Press and hold LOCK for 3 seconds to disable (prevents accidental activation).
Filter Indicator: Flashes when filter needs replacement (approx. 6 months).

WARNING! Do not use with containers that are not sturdy. Keep children away from dispenser.

Smart Features

SmartThinQ App: Monitor and control remotely, receive alerts, run diagnostics. Smart Diagnosis™: Hold phone near control panel to receive diagnostic code for service. Door Cooling+™: Adjust vents to direct cool air into door bins. Smart Cooling Plus™: Circulates air to maintain even temperature and humidity.

Care & Cleaning

Unplug before cleaning interior. Use mild detergent and warm water; avoid abrasive cleaners.

Exterior: Clean with soft cloth and mild cleaner. Interior: Remove shelves and bins; wash separately. Gasket: Wipe with damp cloth. Condenser coils: Vacuum every 6-12 months (located at back or bottom).

CAUTION! Do not use sharp objects to remove ice. Never use boiling water on freezer components.

Regulatory Information

UL Listed; complies with FCC Part 15. Energy Star certified. Copyright © LG Electronics. For support, visit www.lg.com or contact LG Customer Service at 1-800-243-0000. Model LMX25981ST manufactured for U.S. market.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Refrigerator not cooling	Power/doors/settings	Check power cord; ensure doors close fully; verify temperature settings.
Dispenser not working	Water supply/filter/lock	Ensure water line connected and on; replace filter; check child lock.
Ice maker not making ice	Signal arm/temperature/time	Ensure signal arm is down; freezer must be below 10°F; allow 24 hours.
Unusual noise	Leveling/fan/items	Level refrigerator; check for items touching back wall; normal compressor sounds may occur.
Water leaking	Line/defrost drain/clog	Check water line connections; clear defrost drain tube; ensure not overfilled.

Reset: Unplug for 1 minute then plug back in.

Service: 1-800-243-0000; www.lg.com