Ecobee – How to Enable Auto Heat/Cool

Created by Lamont Gibson, Modified on Sat, 20 Jun at 5:36 PM by Lamont Gibson

Overview

Auto Heat/Cool mode automatically switches between heating and cooling to maintain a comfortable indoor temperature.

This feature is especially useful during mild weather or seasonal transitions when both heating and cooling may be needed throughout the day.

Enable Auto Heat/Cool

On Smart Thermostat Premium or Enhanced

Select Main Menu.
Select General Settings.
Select Settings.
Select Installation Settings.
Select Thresholds.
Select Auto Heat/Cool.
Choose Enable.

On Smart Thermostat Lite or Essential

Select Main Menu.
Select Settings.
Select Installation Settings.
Select Thresholds.
Select Auto Heat/Cool.
Choose Enable.

Activate Auto Mode

After enabling Auto Heat/Cool:

On the Thermostat

Return to the Home screen.
Select the System Mode icon.
Select Auto.

On the ecobee App

Open the ecobee app.
Select your thermostat.
Open System Mode.
Select Auto.

How Auto Heat/Cool Works

When Auto mode is enabled, ecobee manages both heating and cooling automatically.

The thermostat displays:

Cooling setpoint (Blue)
Heating setpoint (Orange)

Cooling Operation

If the indoor temperature rises above the cooling setpoint:

The cooling system turns on.
The thermostat cools the home to the desired temperature.

Heating Operation

If the indoor temperature falls below the heating setpoint:

The heating system turns on.
The thermostat heats the home to the desired temperature.

Heat/Cool Minimum Delta

The Heat/Cool Minimum Delta is the minimum temperature difference allowed between the heating and cooling setpoints.

Default Setting

5°F (2.8°C)

Adjustable Range

Minimum: 2°F (1.1°C)
Maximum: 10°F (5.5°C)

This setting prevents heating and cooling from operating too close together.

Adjust Heat/Cool Minimum Delta

On Smart Thermostat Premium or Enhanced

Select Main Menu.
Select General Settings.
Select Settings.
Select Installation Settings.
Select Thresholds.
Select Heat/Cool Min Delta.
Choose the desired temperature difference.

On Smart Thermostat Lite or Essential

Select Main Menu.
Select Settings.
Select Installation Settings.
Select Thresholds.
Select Heat/Cool Min Delta.
Choose the desired temperature difference.

Important Notes

Auto mode requires both heating and cooling equipment to be properly configured.
The thermostat will automatically switch between heating and cooling as needed.
A larger Heat/Cool Delta reduces system cycling.
A smaller Heat/Cool Delta provides tighter temperature control.