Thermostat buttons or touchscreen are unresponsive

Safety: Turn off power to the thermostat at the breaker before removing it.

• Power cycle: Turn off HVAC power for 60 seconds, then restore. Check if the interface responds after reboot.
• Clean surface: Gently clean the touchscreen with a soft, dry cloth. Do not use liquids that could seep into the edges.
• Check for damage: Inspect the screen for cracks or signs of impact. Physical damage usually requires replacement.
• Factory reset: If possible via app or hardware button, perform a reset to clear firmware lockups.
• Replace thermostat: If the UI remains unresponsive, the touch panel or button matrix is defective and the thermostat must be replaced.