A faulty thermostat can lead to inconsistent temperatures and increased energy bills, making it crucial to identify the issue early. Signs of a malfunction may include unresponsive controls, inaccurate readings, or frequent cycling. Factors such as age, brand, and type of thermostat can also influence performance. Regular maintenance and understanding your system's specific needs can help prolong its life. Curious about how to troubleshoot or replace your thermostat? Ask Improvi.ai for personalized guidance!