Thermostat buttons or touchscreen are unresponsive or respond intermittently.

Safety first: Turn off power before removing the thermostat from its base.

Steps to attempt:

• 1. Reboot device: Power-cycle the thermostat and test the buttons or touchscreen again.
• 2. Clean surface: Wipe the front panel with a soft, dry cloth. Do not use liquids that could seep inside.
• 3. Check for physical damage: Inspect for cracks, warping, or signs of impact that may have damaged the touch sensor or buttons.
• 4. Use app control: If the physical interface is unreliable, use the Baxi app as a temporary workaround.

When to call a professional: Physical UI components are not usually repairable; the thermostat head unit should be replaced.