Thermostat Not Following Schedules – Troubleshooting Guide

If a thermostat is not following the schedules properly, try the following troubleshooting steps to identify and fix the issue.

1. Verify the Thermostat Has Proper Z-Wave Communication

Send a remote thermostat setpoint change command to test Z-Wave communication. If the thermostat updates its setpoint successfully, the connection is stable.

Poor Z-Wave Communication

Improve Z-Wave network strength by following the Repairing the Z-Wave Network guide.
If the device is malfunctioning or offline, see Z-Wave Device Troubleshooting.

Good Z-Wave Communication

If communication is good, verify that the thermostat schedule is set up correctly through the Customer Website.

2. Verify the Schedule Is Set Up Properly

Ensure adjacent schedule intervals have different target temperatures. Identical temperatures across intervals cause the thermostat to treat them as one continuous period and ignore manual changes.

Example: If all weekday intervals are set to 70°F and the thermostat is manually changed to 74°F, it will remain at 74°F until the next interval with a different temperature (e.g., 10:00 PM).

3. Send a Hard Reset

If both Z-Wave communication and schedule setup are correct, send a Hard Reset to the panel using the Remote Toolkit. After reboot:

Disable the thermostat schedule.
Wait 5 minutes.
Re-enable the schedule.

4. Verify for Internal Thermostat Schedules

Some thermostats can have their own built-in schedules that may override the Alarm.com schedule. Refer to the manufacturer’s guide to check and disable internal scheduling.

Thermostat	Internal Schedule?	Troubleshooting
CT-100	No	N/A
Alarm.com Smart Thermostat	No	N/A
CT-30	Yes	Press and hold PROG for 12 seconds in OFF mode to disable schedules.
TBZ48A / Linear NTZB48	Yes	Hold MODE for 10 seconds to disable “Away” mode.
TZEMT400	Yes	In Installer Settings → System Settings, set Sched Enable to N and press Done.

If the thermostat still does not follow schedules after these steps, contact Alarm.com CORE Technical Support or visit these helpful links: