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

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Fridge Setting for Thermostat #howto #diy #thermostat #repair | Engineer Setup

Heating Soldering Plate Welder Hot Preheating Chip Welding Station 20V Mini Smart Thermostat for Repair DIY Laboratory - Walmart.ca