Why did my thermostat go blank and how do I fix it?
It's a total pain when you walk over to check the temperature and realize you're staring at a dark screen, wondering why did my thermostat go blank right when you need the AC or heat the most. Usually, this happens at the worst possible time—like the first real cold snap of November or a sweltering July afternoon. Before you start panic-searching for a local HVAC tech and preparing to pay a hefty emergency call-out fee, take a deep breath. A blank thermostat doesn't always mean your entire system is fried. In fact, it's often something pretty simple that you can handle yourself in a few minutes. ...