Your air conditioner relies on refrigerant to remove heat from your home and keep you comfortable during Missouri’s hot summer months. When refrigerant levels are where they should be, your AC system can cool your home efficiently and maintain consistent indoor temperatures.
However, if refrigerant levels become low due to a leak, your air conditioner may struggle to do its job. The problem often starts small, but ignoring it can place additional strain on your AC system and potentially lead to more expensive repairs over time.
Here are some of the most common signs that your air conditioner may be low on refrigerant and why it’s important to have the issue addressed promptly.
What Does Refrigerant Do?
Refrigerant is the substance that allows your air conditioner to transfer heat from inside your home to the outdoors.
As refrigerant circulates through your AC unit, it absorbs heat from your indoor air and releases it outside. It’s this continuous process that allows your air conditioner to keep your home cool, even during the hottest days of summer.
Unlike fuel, refrigerant isn’t something that gets “used up.” It circulates within a sealed system, and, in theory, it can keep cooling your home forever. If refrigerant levels are low, it usually means there is a leak somewhere in the system.
Why Refrigerant Levels Matter
When refrigerant levels drop, your air conditioner can’t absorb and move heat as efficiently as it should.
This means that the system has to work harder and longer to reach the temperature set on your thermostat. You may notice that your home isn’t as cool as it should be and that your energy bills are higher than normal. But it’s the hidden consequence of low refrigerant that can often be even more costly: since the system has to work harder, it creates additional strain that will cause its components to wear out faster.
Common Signs Your Air Conditioner Is Low on Refrigerant
If you notice any of these signs, there’s a good chance that the refrigerant levels in your air conditioner are running low:
Your Home Takes Longer to Cool
One of the earliest warning signs is that your home simply doesn’t cool as quickly as it used to. You may notice your air conditioner running for extended periods without reaching the desired temperature, particularly during the hottest parts of the day.
Warm Air Coming from the Vents
If your air conditioner is blowing air that feels lukewarm or only slightly cool, there’s a good chance that your refrigerant levels are low. However, there are several issues that can cause this, so you’ll need to have your system evaluated by an HVAC professional to determine if low refrigerant is the cause.
Higher Energy Bills
When your air conditioner has to run longer to keep your home cool, the result is higher energy bills. If your energy usage hasn’t changed but your electric bill has, your HVAC system may not be operating as efficiently as it should.
Ice Forming on the Refrigerant Lines or Indoor Unit
If you see ice on your AC unit, you might assume that just means it is working extra hard. In reality, ice forming on refrigerant lines or the indoor evaporator coil is often a sign that something is wrong.
Low refrigerant can cause temperatures inside the evaporator coil to drop below freezing, allowing moisture in the air to freeze on the coil and surrounding components. If you notice ice anywhere on your AC system, it’s a good idea to turn the unit off and schedule a professional inspection.
Hissing or Bubbling Sounds
Refrigerant leaks sometimes produce hissing or bubbling noises. While these sounds don’t always indicate a refrigerant leak, they aren’t something you should ignore.
Your Air Conditioner Runs Constantly
Low refrigerant often makes it difficult for your system to keep up with cooling demands. As a result, your air conditioner may run almost continuously while struggling to keep your home cool.
Why You Shouldn’t Simply “Top Off” Refrigerant
There’s a common misconception that refrigerant can be “topped off” in the same manner as adding gasoline to your car’s fuel tank when it’s running a little low. However, the difference is that refrigerant operates inside a sealed system. If levels are low, there is almost always a leak that needs to be located and repaired.
Simply adding more refrigerant without fixing the leak usually results in the same problem returning later. A qualified HVAC technician can identify the source of the leak, make the necessary repairs, and recharge the system to the manufacturer’s recommended specifications.
Can You Fix a Refrigerant Leak Yourself?
Because refrigerant systems operate under high pressure and require specialized equipment, refrigerant leaks should always be handled by a licensed HVAC professional.
If you attempt to repair refrigerant lines or recharge an air conditioner yourself, you may end up damaging the system and creating a much more costly repair. Working on an AC unit without the proper equipment and training can also be a safety risk due to the high pressures involved.
The best thing homeowners can do is recognize the warning signs early and schedule service before the problem becomes more serious.
Trust Jon Wayne Heating & Air for AC Repairs
If you notice any of the signs that your AC unit is low on refrigerant, it’s a good idea to schedule an inspection as soon as possible. Thankfully, the experienced technicians at Jon Wayne Heating & Air are here to help.
We’ll thoroughly inspect your HVAC system, identify the cause of the problem, and recommend the appropriate repairs to restore your system’s ability to efficiently cool your home.
Whether your AC needs a refrigerant leak repaired, a system recharge, or another type of repair, you can count on our team to provide honest recommendations and dependable service. Contact us today to schedule your inspection!
