![]() Normally, electrical wires transmit messages from the thermostat to the HVAC unit, such as telling it when to turn on and what temperature to make your house feel. In most cases, this indicates the wiring has failed. ![]() If the screen is dark, it’s most likely the batteries are dead, or the thermostat itself is experiencing a major malfunction.Ī malfunctioning thermostat can make your heater or air conditioner unable to turn on. Normally, it should display the temperature in the room and details about your programmed schedule. ![]() That’s why we put together this handy guide to help you determine if your thermostat is not working and some steps you can take to fix it!Ī sure sign that there’s something wrong with your thermostat is when the screen is dead. Here at HB Home Service Team, we understand that it can be tough to figure out exactly why your home is uncomfortable or climate inefficient. We often have a knee-jerk reaction to blame the HVAC system, but there are also a variety of thermostat issues that can cause your system to malfunction. If your house doesn’t cool down on a sweltering summer day or warm up on a frigid winter night, your thermostat might be to blame.
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