Ecobee Thermostat Error Code Auto-changeover gap too small: How to Fix It

Q: What is the auto-changeover gap on an Ecobee thermostat?

The auto-changeover gap, also called deadband, is the minimum temperature difference required between your heating and cooling setpoints. Ecobee requires at least 5°F to prevent the system from constantly switching between heating and cooling modes.

Q: Why does my Ecobee need a 5-degree gap between heat and cool?

The 5-degree minimum gap prevents short-cycling, where your HVAC system rapidly switches between heating and cooling. This protects your equipment from wear and reduces energy consumption while maintaining consistent comfort.

Q: Can I set the auto-changeover gap to more than 5 degrees?

Yes, you can increase the deadband beyond 5°F for better energy efficiency. A wider gap (6-8°F) reduces HVAC cycling and saves energy, though it may result in slightly larger temperature swings in your home.

Q: Will fixing the auto-changeover gap error affect my energy bills?

Yes, properly setting the deadband typically reduces energy consumption by preventing unnecessary HVAC cycling. A wider gap between heating and cooling setpoints generally leads to lower energy bills.

Q: What happens if I ignore the Ecobee auto-changeover gap error?

Ignoring this error can lead to short-cycling, where your HVAC system rapidly switches between heating and cooling modes. This causes increased wear on equipment, higher energy bills, and poor temperature control in your home.

Abstract

The Ecobee auto-changeover gap error occurs when your heating and cooling setpoints are too close together (within 5°F). This prevents the system from switching efficiently between heating and cooling modes, potentially causing constant cycling and energy waste.