Thermostat is unresponsive to touch or buttons, but the display is lit.

Safety first: No high-voltage work is required.

• Step 1 – Reboot thermostat: Remove the thermostat from the wall plate for 30–60 seconds, then reinstall to force a reboot.
• Step 2 – Check for firmware update: If touch returns, immediately check for and install any available firmware updates.
• Step 3 – Factory reset: If the interface is partially responsive, perform a factory reset from the settings menu.
• Step 4 – Replace thermostat: If the screen remains unresponsive after reboot, the touchscreen hardware is likely failed.