Discovering that your air conditioner is making unusual noises can be worrisome, especially in the midst of a hot summer. One sound that often alarms homeowners is a hissing noise. Understanding the possible causes behind this noise is key to addressing this problem. Here are some of the most common reasons for a hissing sound.

1. Refrigerant Leak

A common cause for a hissing sound from your AC unit is a refrigerant leak. This sound often resembles air as it’s released from a balloon and usually means there’s a leak in your refrigerant line. Refrigerant is vital for your AC to cool your home effectively, and a leak can reduce efficiency, causing your unit to work harder and drive-up energy costs.

2. Internal Valve Issues

Another possible reason for a hissing sound is an issue with an internal valve. If the noise seems to be coming from your indoor unit, it might be a valve releasing air within the system. This usually isn’t a major problem, but it’s worth getting checked out by a professional to ensure everything is functioning correctly.

3. Air Escaping

If the hissing sound is continuous, it could be due to air escaping from your ductwork or the unit itself. This could be the result of a hole in your ductwork or a problem with the unit’s seal. These leaks can greatly reduce the efficiency of your air conditioner and cause higher energy bills.

When to Call a Professional

If your AC unit is making a hissing sound, it’s best to contact an HVAC professional promptly for repair services. Ignoring this issue could lead to more significant problems down the line and potentially damage your unit. At Valley Mechanical LLC, we are focused on keeping your system working at an optimal level with AC maintenance services. We specialize in HVAC services, and we also offer indoor air quality services, humidifiers, and commercial services for customers in Blue Springs and the surrounding areas. Call Valley Mechanical LLC today to learn more about our services.

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