A furnace thermostat is an important component of any HVAC system that controls the heating and cooling of your home or office. It regulates the temperature by turning the furnace on and off as needed. However, over time, a furnace thermostat can start to malfunction or fail completely, leading to a variety of problems. In this article, we will discuss the symptoms of a bad furnace thermostat, so you can recognize the signs and take action before it's too late. 5 symptoms of a bad furnace thermostat 1. Inconsistent Temperatures One of the most common symptoms of a bad furnace thermostat is inconsistent temperatures in your home or office. You may notice that some rooms are too hot, while others are too cold, even when the thermostat is set to a specific temperature. This could be a sign that your thermostat is not functioning properly and may need to be repaired or replaced. 2. High Energy Bills Another symptom of a bad furnace thermostat is high energy bills. If your thermostat is...