The answer to 'why is my thermostat high energy bills' is that there are several common causes, including an outdated or malfunctioning thermostat, improper thermostat placement, and issues with the HVAC system itself. These problems can lead to the thermostat not accurately reading the temperature or not properly controlling the HVAC system, resulting in higher energy usage and bills.
Some symptoms of thermostat-related high energy bills include the HVAC system running excessively, the home not reaching the desired temperature, or the thermostat display showing incorrect readings. Solutions can range from simple DIY adjustments to professional HVAC system maintenance or thermostat replacement, depending on the root cause.