A dirty filter is one of the most common causes of a malfunctioning HVAC system. There are many problems associated with a clogged filter, such as lower output, short cycling, overheating motor, and inefficient cooling, among others. These issues reduce the lifespan of your unit. This means you’ll need to spend money for a costly replacement without getting the most out of your HVAC. Properly cleaning your HVAC’s filter can help you maximize your system without the expensive replacement costs.