i BOUGHT a used CARRIER INFINITY THERMOSTAT. INSTALLATION seemed EASY, but the SCREEN won’t LIGHT UP, though it BEEPS.

WarmlyYours 73 sqft (120V) Electric Radiant Floor Heating System Cable Kit with Underfloor Heated Cable, WiFi Programmable Thermostat, Floor Sensor, and Circuit Tester

Dreo Wall Heater for Bathroom, Smart Space Heaters with ALCI Plug, 1500W, 120° Vertical Oscillation, Adjustable Thermostat, 24H Timer, Easy Installation Electric Heater for Indoor use, Bedroom, Office

how to FIX WHITE RODGERS & EMERSON THERMOSTAT BLINKING ISSUES EXPERT Q&A

Emerson Sensi Wi-Fi Smart Thermostat for Smart Home, Pro Version, Works with Alexa, Energy Star Certified, (1F87U-42WF)

Emerson Sensi Wi-Fi Thermostat for Smart Home, ST55, DIY Version - Walmart.ca