FAQ's
Wireless sensor questions
Q: Which wireless sensors and accessories work with X7S thermostat?
A: The
XRSENSOR-1PK: This is the wireless temperature, humidity and PIR sensor designed for use with
XRSENSOR-2PK: This is a 2 pack of the wireless temperature, humidity and PIR sensor designed for use with
RCHTSENSOR-1PK: This is the sensor designed for use with T9 thermostats. Older models of this sensor will not work with
RCHTSENSOR-2PK: This is a 2-pack of the sensor designed for use with T9 thermostats. Older models of this sensor will not work with
C7189R3002-2: This is a 2 pack of the wireless temperature, humidity and PIR sensor designed for use with T10+ thermostats. This sensor is compatible with
C7189R2002-2: This is a 2 pack of the wireless temperature, humidity and PIR sensor designed for use with T10 thermostats. This sensor will not work with
WiFi connection questions
See WiFi Setup and Troubleshooting.
Software and security questions
Q: How can I be sure my thermostat is running the most up-to-date firmware?
A: When your thermostat is connected to WiFi, it will automatically receive over-the-air firmware updates from the First Alert App. These firmware updates contain things such as new features as well as security upgrades. Keep your thermostat connected to WiFi to ensure it receives these updates.
Q: How can I prevent a cybercriminal from making unauthorized changes to my thermostat?
A: If a cybercriminal gains access to your First Alert app, they can tamper with the settings of the products on that app, or remove those products from your account and add them to a different account. Make sure you select a password that meets the recommendations for complexity and save it in a secure location that others cannot access.
Other questions
Q: How can I remove the X7S Smart Thermostat from my WiFi network and App?
A: If you want to replace your
Q: Is there a motion sensor in the thermostat?
A: The
Q: What happens if “Active rooms” is used and no motion is detected in any of the rooms with sensors?
A: If the thermostat is set to control by active rooms, and no motion is detected, the sensor in the thermostat is used and the remote sensors are excluded. Most people schedule the sleep period to use “Selected sensors” rather than “active sensors” and choose the bedrooms for the sleep schedule.
Q: When using active rooms, how long are those rooms considered "Active" after motion has last been detected?
A: The sensor has an occupancy algorithm based on how many motion events it sees within a certain timeframe. This was set up so that if someone briefly walks through a room, the sensor will tell the thermostat that the room is “occupied” for 10 minutes. If someone is in a room longer, then the timeout will be increased automatically.
Sensors communicate directly with the thermostat via Honeywell Home Redlink 3.0 technology. After sensing motion, the communication should take less than 3 seconds to assign the room priority, depending on battery and signal strength.
Q: How do the wireless indoor sensors detects motion.
A: The sensors use a Passive Infrared Sensor (PIR) detector.
Q: How does motion-based priority work with multiple people in the house?
A: If the thermostat’s priority is set to ‘Active Rooms’, then any room that detects motion will become prioritized. The average of those rooms’ temperatures will be monitored so that the thermostat can adjust to your preferred temperature setpoint. If one of the sensors no longer detects people in that room, that sensor will adjust after a period of time, using the algorithm based on motion events that it sees within a certain time frame.
Q: What’s the range of detection on the motion sensor?
A: There are many factors that can affect this (height, body size, layers of clothing, temperature of clothing, angle, etc.). The typical range of our sensor is up to 20 feet.
Q: Are the X7S thermostats UL and ULC listed or CSA listed?
A: UL, ULC, & CSA ratings are not required for low-voltage rated controls such as the X7S & X7B Smart Thermostats. UL rating is required for devices supplied by 50 volts or higher.
Q: Why does the display go to the Honeywell Home startup screen?
A: It is normal that the thermostat will go to the startup screen where it shows “Honeywell Home” and then returns to the idle screen after a short delay if there has been a power outage or if there has been an over-the-air firmware update. Either of these should be a very infrequent occurrence. If you notice this is happening regularly, there may be an issue with your equipment. Example: a limit may be tripping due to poor airflow.
If the issue happens regularly, we would recommend replacing the furnace filter and having an HVAC pro service the unit if the issue persists.
A thermostat that uses batteries, or does not have a premium display, may have been masking this type of system issue, however if a limit is regularly cutting power to the thermostat your system will likely have reduced performance and could be susceptible to damage.
Q: What happens if there is a power loss to the thermostat?
A: During a power loss the HVAC equipment cannot run.
Once power is restored the thermostat goes through a power up cycle and will initially show "Honeywell Home" on the screen.
-
If the thermostat is used with any
-
If the thermostat had been connected to a WiFi network and the app, it will re-establish connection and update the time/date.
-
If the thermostat was not connected to a WiFi network and registered to the app, the time/date will need to be reset for the thermostat to follow the program schedule.
All schedule settings are permanently stored during a power outage, however, if scheduling had been used, the thermostat will maintain 72F in heat and 78F in cool mode until the time/date has been set.
If the thermostat had been used in a permanent hold, that setting is also permanently stored during a power outage.
The thermostat will be in the same mode it had been in when power was lost (Example: heat, off, cool).