Your HVAC system might be failing you, but you need to pay close attention to what it’s telling you. Some issues are obvious, like abnormal noises, but some problems, like a broken thermostat, might not be that obvious at first. Read on to understand what causes five common issues of failing HVAC systems and what you can do to resolve those issues.
Little Air Is Coming Through Your Vents
If very little air is coming out of your vents, that could be due to a dirty filter, a failing compressor, or blocked or leaky ducts. A problem with your compressor means that you may need a new AC unit, if not just a new compressor. If you have issues with your ducts or your compressor, call an HVAC professional.
Your Unit Is Blowing Hot Air
If your AC unit is not blowing cold air, it is not working efficiently, and it is wasting energy. When something like this happens, there could be a refrigerant leak, low refrigerant, issues with the condenser, a bad capacitor, a blown fuse, a tripped circuit breaker, a wiring issue, or leaky ducts.
To solve this issue or to avoid it entirely, there are a few things you can do. Replace your filters regularly (at least once a month to every three months). You may also be able to handle a blown fuse and tripped circuit breaker by yourself. However, only an experienced HVAC service technician, like one at J&J Mechanical Inc., should address issues with your wiring, ducts, and HVAC components.
Your Thermostat Is Not Working Properly
Your thermostat is supposed to serve as the command center for your AC, which means that it tells the AC how much cool air to generate, and it measures the temperature in your home. If your thermostat is not working properly, it cannot tell you if your AC unit is working or not, the AC might not turn on, or the unit might run for short periods before turning itself off. You will need to call an HVAC service technician to fix this problem.
Your Unit Is Making Strange Sounds
If your AC unit is making any grating, grinding, scraping, screeching, or squealing noises, that might mean that a belt has slipped out of place, AC components need lubrication, debris is in the system, or some components are broken. You will need to call in an HVAC service technician because a loose belt or any other loose part in your AC unit will likely lead to other parts of the AC being damaged as well. This will cost you more down the line if you don’t address it early on.
Your Unit Is Older Than 10 Years Old
While your air conditioning unit may last at least 12-15 years, many experts recommend replacing your unit if it’s more than 10 years old. After an AC unit has aged 10 years, it is less energy-efficient, and it may need more repairs. Also, newer models are more energy-efficient, which means you will have lower utility bills.
When your HVAC unit is failing you, there are several things you can do. Some problems require general maintenance, but most require the assistance of a professional HVAC service technician