LG LFC21776ST Refrigerator Manual

The LG LFC21776ST is a 21.7 cubic foot French Door Refrigerator with LinearCompressor™ technology, Door Cooling+™ system, Smart Cooling Plus™, Smart Diagnosis™, InstaView™ Door-in-Door, and Craft Ice™ maker. It features adjustable shelves, humidity-controlled crispers, gallon door bins, and an external water and ice dispenser. 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 InstaView & Craft Ice 8. Food Storage Features 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: French doors with InstaView panel, external water/ice dispenser, LinearCompressor™, Craft Ice™ maker, adjustable interior shelves and bins.

Feature	Description
InstaView™ Door-in-Door	Knock twice to see inside without opening door
LinearCompressor™	10-year warranty, energy efficient cooling
Craft Ice™	Makes slow-melting spherical ice
Door Cooling+™	Dual evaporators for balanced cooling
Smart Diagnosis™	Diagnose issues via phone with LG app
Smart Cooling Plus™	Multi-air flow and fan control
External Dispenser	Water and ice through the door
Adjustable Shelves	Spill-proof tempered glass shelves
Humidity Control	Moist balance crisper drawers
Door Alarm	Alerts if door left open

Installation

Unpack and inspect contents. Place on level floor.

Remove shipping materials: Tape, brackets, foam from doors and interior.
Position refrigerator: Allow 2-inch clearance at back and sides for ventilation.
Level the unit: Adjust front leveling legs for stability.
Connect water line: For ice maker and water dispenser (see section 7).
Plug into dedicated 115V AC outlet.

WARNING! Refrigerator is heavy; use two people for moving. Ensure floor can support weight.

First-Time Setup

Plug in refrigerator; allow 24 hours for cooling before adding food.

Set temperature: Press TEMP buttons to set fridge (37°F recommended) and freezer (0°F recommended).
Enable features: Activate InstaView, Craft Ice, and Smart Cooling Plus via control panel.
Fill water system: Dispense water for 3 minutes to clear air from lines.
Load food: Organize using adjustable shelves and bins.

CAUTION! Do not block air vents inside. Allow space between food items for air circulation.

Specifications

Capacity: 21.7 cubic feet total (14.7 cu ft fridge, 7.0 cu ft freezer).
Dimensions (HxWxD): 69.875" x 35.75" x 34.75".
Door Style: French Door with bottom freezer drawer.
Ice Maker: Craft Ice™ spherical ice + traditional cubed ice.
Water Filter: LT1000P filter (replace every 6 months).
Energy Star: Yes, certified for efficiency.
Voltage: 115V, 60Hz.
Finish: Stainless steel (LFC21776ST).

Controls and Settings

Access controls via touch panel on dispenser or LG ThinQ app.

Control Panel: TEMP (fridge/freezer), ICE TYPE (Craft/Cubed), WATER FILTER, LOCK, ENERGY SAVER, DOOR ALARM.

Temperature Settings: Fridge (34°F–46°F), Freezer (-6°F–8°F). Ice Options: Craft Ice (spherical), Cubed Ice, Crushed Ice. Smart Features: Connect to Wi-Fi for ThinQ app control, Smart Diagnosis. Filter Reset: Press and hold WATER FILTER for 3 seconds after replacement. Energy Saver: Reduces power consumption when activated.

Connecting Water Line

Required for ice maker and water dispenser.

Turn off main water supply.
Connect 1/4-inch copper or plastic water line to cold water pipe.
Run line to refrigerator connection at back lower left.
Use compression fitting to attach line to valve.
Turn on water; check for leaks.
Flush line by dispensing water for 3 minutes.

Tip: Use LG-approved water filter (LT1000P) for best performance.

Using InstaView & Craft Ice

InstaView: Knock twice on glass panel to light interior; press again to open door. Craft Ice: Select Craft Ice mode; maker produces up to 8 spheres per day.

For ice: Press ICE TYPE to select Craft, Cubed, or Crushed.
Dispense ice: Hold glass against dispenser paddle.
Dispense water: Press water button; hold glass for continuous flow.
Clean dispenser: Wipe with soft cloth; run cleaning cycle monthly.

WARNING! Do not use sharp objects to clear ice jams. Turn off ice maker before cleaning.

Food Storage Features

Adjustable Shelves: Slide out for cleaning; reposition for tall items. Humidity Crispers: Set high for veggies, low for fruits. Door Bins: Hold gallon containers. Freezer Drawer: Full-width slide-out basket.

Care & Cleaning

Unplug before cleaning interior. Use mild soap and water; avoid abrasives.

Exterior: Wipe stainless steel with grain using LG cleaner. Interior: Remove shelves and bins; wash with warm soapy water. Condenser Coils: Vacuum every 6 months for efficiency.

CAUTION! Do not use steam cleaners. Never wash shelves in dishwasher if not labeled dishwasher-safe.

Regulatory Information

Troubleshooting

Symptom	Possible Cause	Corrective Action
Refrigerator not cooling	Power/doors	Check power cord; ensure doors close fully; adjust temperature settings.
Water dispenser not working	Filter/line	Replace water filter; check water line for kinks; ensure water supply on.
Ice maker not making ice	Temperature/arm	Freezer must be at 0°F; ensure ice maker arm is in down position.
InstaView not lighting	Power/settings	Check if feature is enabled in settings; ensure refrigerator is plugged in.
Unusual noise	Leveling/fan	Level refrigerator; check for items touching back wall; clean condenser fan.

Smart Diagnosis: Use LG ThinQ app to run diagnostic test.

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