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My AC Is Blowing Warm Air: What Do I Do?

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My AC Is Blowing Warm Air: What Do I Do?
 

Nothing is more frustrating in the hot summer than dealing with a broken AC unit. Warm air blowing from your AC unit means that the refrigerant isn’t cold enough to adequately cool the air in your home, which can lead to several problems, including higher energy bills and an increased chance of getting sick. Keep reading for tips on troubleshooting and fixing your AC unit.

Dirty Air Filters

Dirty air filters are the most common cause of an AC blowing warm air. Over time, dust and dirt build-up on the filters, which restricts airflow and causes the unit to work harder than necessary. This can lead to various problems, including a decrease in cooling capacity and an increase in energy use. In severe cases, the AC may even fail to turn on.

It’s crucial to periodically clean or change your air filters to prevent these air conditioner problems. If you’re unsure how often to change your filters, consult your owner’s manual or contact the manufacturer.

Issue with the Thermostat

If the thermostat isn’t working correctly, it can’t control the temperature in your home, which can cause the AC to blow warm air. You can do a few things to troubleshoot the thermostat and fix the problem.

  • Make sure you turn on the thermostat. Some thermostats have a switch on the back that needs to get flipped to work.
  • Make sure the thermostat is set to the correct temperature. If it’s not set to the right temperature, your AC will blow warm air.
  • Check the batteries in the thermostat. If they’re low, the thermostat might not be working correctly.
  • Make sure the wires are appropriately connected to the thermostat. If they’re not, it might not be working correctly.
  • If you’ve tried all these things and your AC is still blowing warm air, you might need to call a technician to look at it.

Dirty Evaporator Coils

The evaporator coils are responsible for cooling the air inside the house. If they are dirty, it can cause the AC to blow warm air. This is because the coils will not be able to cool the air properly, leading to inefficient cooling. You can clean the coils yourself by spraying them with a coil cleaner or have a professional do it for you. If the coils are too dirty, you may need to replace them.

A few things can cause the evaporator coils to become dirty. The most common cause is lack of maintenance. If you do not clean or replace the filter on your AC unit, dirt and dust will build up on the coils. Another cause can be pet hair or debris that enters the AC unit. If you have pets, vacuum out the unit regularly to prevent this from happening. If the air filter gets clogged, it can cause dirt and debris to build up on the coils. Finally, a leak in the ductwork can allow dirt and dust to enter the system and settle on the coils.

Compressor Malfunction

The compressor is the central part of an air conditioning system. It compresses the refrigerant gas to high pressure and sends it through the condenser. If the compressor malfunctions, it will not be able to send pressurized refrigerant gas through the condenser, which will cause the air conditioner unit to blow warm air.

Compressor malfunctions are often caused by a lack of maintenance or by using the AC unit in an environment that is too hot or humid. If you suspect that your ac unit’s compressor is malfunctioning, you should contact a qualified technician to have it repaired or replaced.

Leaky Ducts

If you’ve been experiencing warm air blowing from your vents, the most likely culprit is leaky ducts. Ducts are responsible for delivering cool air throughout your home, but if they leak, warm air can get mixed in with the cooled air, resulting in warmer than normal air from your vents.

You’ll need to locate and seal the leaky ducts to solve this problem. This cannot be easy, so it’s best to hire a professional to do it for you. Once the leaks get sealed, your AC should start blowing cool air again.

When the Outdoor Condenser is Malfunctioning

The outdoor condenser is the part of the air conditioning system responsible for cooling the refrigerant before it gets pumped inside the house. When the outdoor condenser is not working correctly, it can cause the AC unit to blow warm air. This may be due to several reasons, such as a blocked or dirty coil, low refrigerant levels, or a faulty compressor.

There are a few things you can do to troubleshoot the issue and get your AC blowing cold air again. First, check to make sure the outdoor condenser gets turned on. If it is, make sure the air filter is clean and replace it if it’s not. You may also need to clear any debris or obstructions around the outdoor condenser unit. If none of these solutions work, you should call a technician to inspect and repair the outdoor condenser.

AC Unit Needs Replacement

The AC unit may be reaching the end of its lifespan, and you may need to replace it to improve its efficiency. The AC unit is less likely to function correctly as it ages and may start blowing warm air. If your AC unit is over ten years old, it’s probably time to replace it with a newer, more energy-efficient model. Replacing your old AC unit can help you save money on your energy bills and keep your home cool during the summer months.

In conclusion, if your AC is blowing warm air, it’s essential to take action immediately. Contact Lee Heating & Cooling today to schedule a service appointment and get your home cool and comfortable again!

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