Installation Guide
Tools Needed:
- Flat-head screwdriver
- Phillips screwdriver
- Wire strippers
- Voltage tester
- Level
- Drill (if needed for mounting)
Step-by-Step Installation
- Turn Off Power: Turn off power to the HVAC system at the circuit breaker to ensure safety during installation.
- Remove Old Thermostat: Carefully remove the cover of your existing thermostat and take a photo of the wiring for reference.
- Label Wires: Label each wire according to its terminal connection (R, C, W, Y, G, etc.) using the provided labels.
- Mount New Base: Position the new thermostat base on the wall and use a level to ensure it's straight before marking screw holes.
- Connect Wires: Connect the labeled wires to the corresponding terminals on the new thermostat base, ensuring secure connections.
- Attach Thermostat: Carefully snap the thermostat onto the mounted base until it clicks into place.
- Restore Power: Turn the power back on at the circuit breaker and follow the setup wizard on the thermostat display.
- Wi-Fi Setup: Connect the thermostat to your home Wi-Fi network using the LG ThinQ app for smart features.
Specifications
| Model Series | LGT-WF700 |
| Type | Smart Wi-Fi Thermostat |
| Color | White / Black |
| Display | 3.5" Full Color Touch LCD |
| Compatibility | Most 24V HVAC Systems |
| Power Requirements | 24V AC, Battery Backup |
| Connectivity | Wi-Fi 2.4GHz, Bluetooth |
| Temperature Range | 40°F - 90°F (4°C - 32°C) |
| Dimensions | 4.3 x 3.3 x 0.9 inches |
| Weight | 0.4 lbs |
| Operating Humidity | 0% - 90% RH (non-condensing) |
Warranty Information
- Full Warranty: 3 years parts and labor
- Extended Coverage: Optional 5-year extended warranty available
- Technical Support: 24/7 customer support included
For warranty service, contact LG Customer Service at 1-800-243-0000 or visit LG.com
Key Features
Smart Learning
Adapts to your schedule and preferences over time, automatically creating energy-efficient temperature schedules based on your habits.
Geofencing
Uses your smartphone's location to automatically adjust temperatures when you leave or return home, saving energy when you're away.
Voice Control
Compatible with Amazon Alexa, Google Assistant, and Apple HomeKit for hands-free temperature control using voice commands.
Energy Reports
Provides detailed energy usage reports and tips to help you save on heating and cooling costs while maintaining comfort.
Remote Access
Control your home's temperature from anywhere using the LG ThinQ smartphone app, with real-time status updates and alerts.
Weather Adaptation
Automatically adjusts temperature settings based on local weather forecasts to maintain optimal comfort and efficiency.
Smart Home Integration
Amazon Alexa
Voice control integration with Alexa-enabled devices for hands-free temperature adjustments
Google Assistant
Seamless integration with Google Home ecosystem for voice commands and routines
Apple HomeKit
Full compatibility with Apple's Home app and Siri voice control for iOS users
IFTTT
Create custom automation recipes with other smart devices and services
SmartThings
Integration with Samsung SmartThings for whole-home automation scenarios
LG ThinQ
Native integration with LG's smart home ecosystem for unified control
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Thermostat won't turn on | Power loss, wiring issue, dead battery | Check circuit breaker, verify wiring connections, replace batteries |
| No Wi-Fi connection | Network issues, incorrect password, signal strength | Check router status, verify password, move closer to router |
| HVAC system not responding | Incorrect wiring, system power off, compatibility issue | Verify wiring diagram, check HVAC power, confirm compatibility |
| Inaccurate temperature reading | Location factors, calibration needed | Relocate thermostat, perform temperature calibration |
| App not connecting | Network issues, app update needed, account sync | Restart app, check for updates, re-link account |
| Short cycling | Wiring issue, system settings, equipment problems | Check wiring, adjust cycle settings, inspect HVAC equipment |
Error Codes
- E1: Power failure - Check circuit breaker and wiring
- E2: Sensor error - Temperature sensor malfunction
- E3: Communication error - Wi-Fi connection issue
- E4: HVAC error - System not responding
- E5: Calibration needed - Temperature calibration required
- E6: Battery low - Replace backup batteries
Manual Downloads
Current Model Manuals
LGT-WF700
Smart Wi-Fi Thermostat
LGT-WF500
Wi-Fi Learning Thermostat
LGT-WF300
Basic Wi-Fi Thermostat
LGT-PRO900
Professional Thermostat
Popular Previous Models
LGT-WF600
Previous Gen Smart Thermostat
LGT-WF400
Standard Wi-Fi Thermostat
LGT-TS200
Traditional Programmable
LGT-BS100
Basic Manual Thermostat