When Does Your HVAC System Need New Parts?
Keeping your commercial building comfortable year-round means maintaining the HVAC system. Like any mechanical system, it doesn’t last forever. However, you don’t always have to replace the entire unit – you can replace broken parts with new parts for an HVAC system to turn the comfort back on. HVAC Jack carries several parts, including:
When to Get New Parts for Your HVAC System
Knowing when to replace parts on your HVAC system is the key to keeping it running efficiently. Maintaining the HVAC system every four to six months allows you to find worn parts before they completely break. You can then schedule it for repair during downtime for your business or at a time when the building has fewer workers and/or customers.
It’s Over Ten Years Old
It’s likely time for new parts for an HVAC system when it reaches 10 years old. Even though many components can last longer with proper maintenance, some may begin to fail, which reduces efficiency and increases energy costs. Older HVAC systems also work harder to provide the same level of comfort, which usually means frequent breakdowns. By replacing key parts in an older HVAC system, you can extend the unit’s lifespan and improve performance.
It Frequently Breaks Down
When an HVAC system frequently breaks down, it may be time for new parts. Frequent breakdowns don’t necessarily mean you have to buy a new system. Mechanical parts only last for an indefinite amount of time. You may be able to get several more years out of it by replacing several old parts at the same time, thus saving several service calls.
New parts for an HVAC system that may wear out after several years could include exhaust fans, dampers, grilles, diffusers, and motors. If you’ve had two breakdowns, consider replacing other parts that haven’t broken but may be worn.
Energy Bills Skyrocketed
When temperatures rise in the summer, it’s normal for your energy bill to increase. However, it should not be significantly higher than it was in the same month the previous year. If you notice your electric bill is significantly higher compared to the same time in the previous year, the HVAC unit may not be as efficient.
It’s for new parts for the HVAC system – even if you keep it regularly maintained. Parts wear out over time. If you don’t change them soon, they will eventually fail, which means more downtime than if you were to shut the unit down for a few hours to replace worn parts.
Uneven Heating and Cooling
If one part of your building is cold and another part is hot, the HVAC unit isn’t maintaining a consistent temperature. While it’s possible that grilles, diffusers, dampers, and other parts on the unit aren’t working properly, the issue may also be with the ductwork.
What Parts Need to Be Replaced First?
If you perform regular maintenance on the HVAC system – usually every six months – you can expect a unit to last 12 to 15 years. All mechanical devices wear out over time, but you can get some extra years from an HVAC unit by replacing parts.
The first replacement parts depend on how many hours per day your HVAC system runs, and that depends on your local climate.
Air Filters
The first part that will most likely need to be replaced is the air filter, as it requires replacement regularly. Dirty filters obstruct airflow and decrease efficiency and performance. Dirty air filters also increase wear and tear. Your HVAC maintenance professional should replace the air filters during his or her regularly scheduled maintenance times.
Exhaust Fans and Motors
The electric motors in HVAC blower fans run while the unit is cooling and heating. This component works more hours in a year than other parts in the HVAC unit, which means it wears out faster than other parts. Besides the air filters, exhaust fans, and fan motors are more likely to need replacement than other parts.
Grilles and Diffusers
Crucial parts of an HVAC system are grilles and diffusers. They can become clogged with dust and debris, causing the system to work harder because of reduced airflow. You might notice uneven heating or cooling, strange noises, or more dust in your building. If you notice poor air quality, it’s time to change the grilles and diffusers.
Heat Exchangers
Another vital component of an HVAC system is the heat exchanger. This part transfers heat between the air and the HVAC system. Over time, heat diffusers can crack or become corroded because of the constant heating and cooling cycles.
Damaged heat exchangers reduce efficiency and can become dangerous, as they can develop a carbon monoxide leak. If you notice unusual smells or sounds, check the heat exchanger.
Dampers
Another critical part of the HVAC system is dampers. They ensure the air is distributed throughout the building. Over time, they can wear or break and become stuck, misaligned, or otherwise damaged, which leads to uneven heating or cooling and reduced efficiency.
If you notice one area of your building seems hotter or colder or if your energy costs increase, you may have an issue with the dampers. Replacing them with new dampers can restore proper airflow and make your building more comfortable. It also makes the HVAC system work more efficiently.
How Long Do Commercial HVAC Systems Last?
Commercial HVAC systems have to be built to meet the demands of large spaces and more frequent use than residential systems. However, they still wear out over time. They can last from 12 to 20 years, depending on who you ask.
A large part of an HVAC system lasting longer involves keeping up with maintenance. In most cases, HVAC systems need maintenance and cleaning every six months. The environment can also play a part in how long an HVAC system lasts, as well as the quality of the system.
Monitoring HVAC systems closely once they reach 10 years can help you find worn parts so you can replace them before they cause additional wear or break.
HVAC Jack is Your Source for HVAC Replacement Parts
When you need new parts for an HVAC system, visit HVAC Jack and browse through our catalog. You can also contact us by calling 630-448-2218 or completing the online form.