Thermostat is not appearing or updating the temperature on the security panel
Oct 06, 2025
401
Thermostat Not Appearing or Updating on Simon XT / XTi / Other Panels
Quick tip: If the thermostat was learned on battery power, re-enroll it on AC power whenever possible. This often resolves missing or incomplete thermostat data.
Simon XT (with 2WTTS)
If you have an Interlogix Simon XT using a 2WTTS touchscreen, the thermostat must be enrolled on AC power to appear. Thermostats learned on battery power will not display on the 2WTTS.
Simon XTi
On Interlogix Simon XTi, run Update 2WTTS to pull the latest thermostat info:
- Select Programming on the XTi screen.
- Enter the master or installer code.
- Select Interactive Services → Z-Wave.
- Select Update 2WTTS → Thermostats → Update.
You may see: “Incomplete thermostat information. Please try again in 5 minutes.” The display should refresh within a few minutes. If not:
- Delete and re-learn the thermostat on AC power, or
- Temporarily move the panel closer to the thermostat (or vice versa) and retry.
Non-Interlogix Panels
- Update the Z-Wave equipment list (controller refresh/sync).
- If still missing, delete and re-enroll the thermostat (preferably on AC power).
- Ensure the thermostat is not set to AUTO locally if the panel/module can’t report AUTO mode. Upgrade the panel/module if needed to support AUTO reporting.
2GIG GoControl / GoControl 2 + TS1
If the thermostat appears on the main panel but not on the TS1 keypad, verify the TS1 firmware matches the panel’s firmware. If not, update the TS1 to the same version.
Note: There is no 1.12 TS1 firmware. If the panel is 1.12, upgrade both the panel and the TS1 to a matching, supported version.
