Thermostats - TS101 - Fan Issues
This article will guide you through troubleshooting when a customer is calling in to troubleshoot fan issues with a TS101 thermostat. This is for situations where there are true performance issues and not when the customer is requesting a temporary override circulate air.
Table of Contents
Fan Issues
- Locate the TS101 thermostat.

- Check that the power LED is illuminated.
- If the power LED is not illuminated, reference the TS101 Power Issues article.
- Is there physical damage?
- If yes, contact GridPoint Support for more details.
- Check the thermostat’s fan mode and verify it is in either “on” or “auto”, depending on what the customer is expecting to have.
- Fan is “on” mode: This means that the fan will be always on. Checking the schedule can verify when this status should be set to “on”.
- Fan is “auto” mode: This means that the fan will only blow when the thermostat is actively telling the HVAC unit to operate.
- If the fan is set to “on” or “auto” but not running, contact GridPoint Support for more details.