# Does Alarm.com automatically turn off the thermostat during a fire or carbon monoxide alarm?
**GoSafer Security Knowledge Base**
*This operational reference is organized for GoSafer Security customers and staff. Alarm.com product names are retained where required for technical accuracy.*
## Overview
Yes. If a smoke, fire, or carbon monoxide alarm is activated by the security system, Alarm.com-connected thermostats automatically set to OFF mode. This is done to prevent circulation of smoke and poisonous gas and to avoid damage to the HVAC system. This setting is referred to as the thermostat Fire Safety rule. It is enabled by default and is highly recommended for all Alarm.com systems with a thermostat attached. If desired, the thermostat Fire Safety rule can be adjusted from the GoSafer Security customer portal (powered by Alarm.com). For more information about editing the thermostat Fire Safety rule, see Create/edit a thermostat Fire Safety rule.
## Procedure
Yes. If a smoke, fire, or carbon monoxide alarm is activated by the security system, Alarm.com-connected thermostats automatically set to OFF mode. This is done to prevent circulation of smoke and poisonous gas and to avoid damage to the HVAC system.
This setting is referred to as the thermostat Fire Safety rule. It is enabled by default and is highly recommended for all Alarm.com systems with a thermostat attached.
Note: If the thermostat is shut off using the Fire Safety rule, it will not be turned back on automatically after the smoke, fire, or CO alarm clears. The thermostat will need to be manually adjusted back to its desired mode.
If desired, the thermostat Fire Safety rule can be adjusted from the GoSafer Security customer portal (powered by Alarm.com). For more information about editing the thermostat Fire Safety rule, see Create/edit a thermostat Fire Safety rule.
## Source and support
For GoSafer Security assistance, visit [gosafersecurity.com](https://gosafersecurity.com/).
Original Alarm.com reference: [https://answers.alarm.com/Customer/Website\_and\_App/Home\_Automation/Thermostats/Does\_Alarm.com\_automatically\_turn\_off\_the\_thermostat\_during\_a\_fire\_or\_carbon\_monoxide\_alarm](https://answers.alarm.com/Customer/Website_and_App/Home_Automation/Thermostats/Does_Alarm.com_automatically_turn_off_the_thermostat_during_a_fire_or_carbon_monoxide_alarm)
Always verify safety, installation, compatibility, and current UI details against the original manufacturer documentation before operational use.