HVAC Maintenance Mythbusters: Separating Fact From Fiction

The way you maintain your HVAC system plays a major role in how well it performs and how long it lasts. Unfortunately, plenty of well-meaning advice and common myths can lead homeowners in the wrong direction. To help you make informed decisions, we broke down some of the most common HVAC maintenance myths and explained what facts and what is fiction.

It’s Okay to Skip Maintenance if You Have a New System

Even brand-new HVAC systems need routine maintenance. Skipping tune-ups in the early years can shorten system life and increase the risk of early problems. During maintenance visits, technicians look for loose connections, worn parts, airflow issues, and signs of abnormal wear. Addressing small issues early prevents breakdowns and protects your investment. No matter how new your system is, yearly maintenance is essential.

Once-a-Year Air Filter Changes Improve Indoor Air Quality

Changing your air filter once a year is far from enough. Most HVAC filters need replacement every one to three months depending on the filter type and your home’s conditions. Homes with pets, smokers, or high dust levels usually require more frequent changes. Neglecting filter changes strains your system and hurts your indoor air quality. Always check your filter regularly and follow the recommended schedule on the label or ask us to create one for you.

Keeping Vents Closed in Unused Rooms Saves Money

Closing vents might seem like a good way to save energy, but it actually disrupts airflow and increases system strain. Your HVAC system is designed for balanced air distribution. When vents stay closed for long periods, pressure builds in the ductwork, which can lead to leaks, hot and cold spots, and reduced efficiency. If you temporarily close a vent for cleaning or repairs, make sure to reopen it when you are finished.

Duct Cleaning Is Optional

While duct cleaning is technically optional, it is still an important part of maintaining good indoor air quality and efficient airflow. Dust, debris, and allergens build up inside your ducts over time. This buildup makes your HVAC work harder and circulates unwanted particles throughout your home. Having ducts cleaned every two to three years helps maintain cleaner air and reduces energy waste caused by airflow restrictions.

You Can Use Any Air Filter as Long as It Fits

Filters vary in size, material, and performance. Using the wrong filter can reduce airflow, make your HVAC run harder, and even harm the blower motor. Always choose a filter with the correct size and recommended MERV rating for your system. We can help you choose the right filter type to maintain efficiency and protect your system.

Programmable Thermostats Always Save Money

Programmable thermostats have the potential to save energy, but only if you actually program them correctly. If you never set schedules or use the features they offer, you are unlikely to notice savings. To get the best results, set cooler temperatures while you sleep, adjust settings when you are away from home, and use vacation mode for longer trips. When used properly, a programmable thermostat can reduce energy costs and improve comfort.

You Can Diagnose Most HVAC Problems Yourself

Some basic issues such as unusual noises or visible leaks can be identified by homeowners. However, most HVAC problems require professional tools and training to diagnose correctly. Electrical issues, refrigerant leaks, and component failures should never be handled as DIY projects. Attempting repairs on your own can cause safety hazards or expensive damage. Our technicians at MVP Air Conditioning, Heating, Plumbing & Electric use advanced equipment to identify problems safely and accurately.

It’s Fine to Skip Maintenance if You Have a Warranty

Warranties do not replace the need for maintenance. In fact, most HVAC warranties require proof of regular professional tune-ups. If you skip maintenance, you may void your warranty and lose coverage for repairs or replacement parts. Routine tune-ups not only keep your system efficient but also protect your warranty benefits.

Heat Pumps Need Less Maintenance Than Central HVAC Systems

Heat pumps actually need more frequent maintenance than many traditional systems because they operate year-round. They provide both heating and cooling, which means they experience double the wear. We often recommend having heat pumps serviced twice a year: once before cooling season and once before heating season.

A One-Foot Clearance Around the HVAC Is Sufficient

Both indoor and outdoor HVAC components need plenty of open space around them to ensure proper airflow. A one-foot clearance is not enough. We recommend at least three feet of clearance to help prevent overheating, promote good airflow, and allow easy access for maintenance. Keeping the area around your HVAC free of clutter, vegetation, and debris will help your system run more efficiently.

If you have questions about HVAC maintenance, MVP Air Conditioning, Heating, Plumbing & Electric is here to help. We provide installations, repairs, and professional tune-ups to keep your system running smoothly. Contact MVP Air Conditioning, Heating, Plumbing & Electric today for reliable heating and cooling services in Lenexa.