Google Nest Learning Thermostat (4th Gen) User Manual

1. Overview

The Google Nest Learning Thermostat (4th Gen) is an advanced smart thermostat designed to optimize your home's heating and cooling for comfort and energy efficiency. It learns your preferences and adapts to your routine, helping to manage your home's climate seamlessly. This manual provides detailed instructions for installation, operation, and maintenance.

The Google Nest Learning Thermostat (4th Gen) in Polished Gold, displaying a temperature of 70 degrees Fahrenheit.

2. What's in the Box

Your Google Nest Learning Thermostat package includes the following components:

• Nest Learning Thermostat (4th gen)
• Nest Temperature Sensor (2nd gen)
• Thermostat base
• Trim plate
• Steel mounting plate
• Mounting screws and wiring labels

All components included in the Google Nest Learning Thermostat (4th Gen) package.

3. Setup and Installation

The Google Nest Learning Thermostat is designed for easy self-installation, typically taking around 40 minutes or less. Follow the step-by-step instructions provided in the Google Home app for a guided setup.

3.1 Compatibility

The thermostat works with most 24V systems, including gas, electric, oil, forced air, heat pump, and radiant systems. A C wire is not required for installation in most homes. For detailed compatibility information, visit the Nest Compatibility Checker.

Compatibility chart for various HVAC system types and wiring requirements.

3.2 Wiring and Mounting

Before beginning installation, ensure the power to your HVAC system is turned off at the circuit breaker. Take a picture of your existing thermostat's wiring for reference. The Nest Learning Thermostat comes with a new base plate and a trim plate to cover any marks from your old thermostat. No additional wires are required for most homes.

A hand attaching the Nest Learning Thermostat to its base plate on the wall.

4. Operating the Thermostat

4.1 Manual Control

You can adjust the temperature directly on the thermostat by turning the outer ring. Press the display to access the main menu and select different modes (Heat, Cool, Heat-Cool, Off) or settings.

4.2 Google Home App Control

Control your thermostat from anywhere using the Google Home app on your smartphone or tablet. You can adjust temperatures, change schedules, and monitor your system's status. The thermostat is also compatible with Alexa, Siri, or Google Assistant smart speakers for voice control.

Control your thermostat and other smart devices using the Google Home app.

4.3 Learning Features and Energy Saving

The Nest Learning Thermostat learns your preferred temperatures and adjusts automatically. It features:

• Smart Schedule: Learns your temperature preferences and suggests small tweaks to help save energy.
• Adaptive Eco: Uses outdoor temperature to find energy-saving temperatures when you're away and returns to comfort within an hour of your return.
• Natural Heating and Cooling: Learns how outdoor temperatures affect indoor temperatures (e.g., sun through windows) and pauses your system to save energy.

The thermostat's Adaptive Eco feature helps save energy when you're away.

The Google Home app allows you to view and adjust your thermostat's learned schedule.

4.4 Nest Temperature Sensor

The included Nest Temperature Sensor (2nd gen) allows you to manage hot and cold spots in your home. Place the sensor in any room and use the Google Home app to set the desired temperature for that specific area at certain times of the day.

Use the Nest Temperature Sensor to ensure comfort in specific rooms.

4.5 System Health Monitor

The thermostat's System Health Monitor helps detect many HVAC issues early. If something needs attention, it can send an alert to your Google Home app, reminding you to change air filters or indicating potential system problems.

Receive alerts for potential HVAC system issues directly on your smartphone.

5. Maintenance

5.1 Cleaning

To clean your Nest Learning Thermostat, gently wipe the display and outer ring with a soft, dry cloth. Avoid using abrasive cleaners or solvents, as these can damage the device.

5.2 Battery Replacement

The Nest Learning Thermostat uses 1 CR2 battery (included). The thermostat will notify you through the device display and the Google Home app when the battery level is low and requires replacement. To replace the battery, carefully remove the thermostat display from its base and insert a new CR2 battery.

6. Troubleshooting

If you encounter issues with your Nest Learning Thermostat, refer to the Google Home app for diagnostic information and troubleshooting steps. The System Health Monitor can provide alerts for potential problems with your heating or cooling system. Common issues may include:

• No Power: Ensure your HVAC system's power is on and wiring is correct.
• Temperature Inconsistencies: Check the placement of your Nest Temperature Sensor and ensure it's not near heat sources or drafts.
• Wi-Fi Connectivity: Verify your home Wi-Fi network is active and the thermostat is connected.

For persistent issues, consult the Google Nest support website or contact a qualified HVAC professional.

7. Specifications

8. Warranty and Support

For warranty information, technical support, or further assistance, please visit the official Google Nest support website or contact Google customer service directly. Keep your purchase receipt for warranty claims.