There’s nothing more frustrating than having to deal with a scorching hot day while having an air conditioner that isn’t blowing cold air. Although there are many reasons why an AC unit might be blowing hot air instead of cold air, this is often easy for a professional to diagnose. If you’re experiencing this type of issue, here are some of the possible reasons why and how we can help.
Dirty Air Filters
Clogged or dirty air filters are a common culprit when it comes to air conditioners not blowing cold air as they should. When the filters are dirty, they restrict proper airflow, causing the evaporator coil to freeze, resulting in warm or hot air coming out. This happens because the AC unit can’t absorb enough warm air from your home to cool and dehumidify before recirculating it.
Refrigerant is the substance found in your air conditioner that is responsible for cooling the air in your home. If there’s a refrigerant leak, your AC won’t be able to produce cold air effectively, and you might notice that the air blowing from the vents is not as cool as it should be. Also, refrigerant leaks, like dirty air filters, can overburden an air conditioner and cause long-term damage to the unit and higher electricity bills.
Faulty Condenser Units
The condenser unit is located outside your air conditioner and is crucial in the cooling process. It is responsible for releasing the heat extracted from your home to the outside environment, which helps to cool rooms much faster. However, in the case of an air conditioner not blowing cold air, this unit might be obstructed by debris, dirt, or vegetation from nearby trees that have fallen inside it.
A Failing Compressor
You can think of the compressor as the heart of an air conditioner, as it’s responsible for pumping refrigerant through the system. If the compressor is faulty or fails, a scenario you may be dealing with might occur where the AC cannot cool indoor air. This issue often causes other signs of something wrong, such as unusual noises from the unit or the system not turning on, though not always.
Electrical problems, like faulty wiring or capacitor issues, can be quite common and can easily affect an AC unit from doing its job effectively. These types of issues might prevent the compressor or fan motors from running correctly, resulting in warm air being blown throughout your home. If you’ve noticed that your air conditioner is struggling to start, frequently tripping the circuit breaker, or experiencing intermittent cooling, electrical issues could be the problem.
Leaky or poorly insulated ductwork can also be responsible for your hot-air woes, as it can cause cool air to escape before it reaches your living space. As a result, your air conditioner might be unable to cool the ambient air, even when it’s running correctly and has nothing else wrong with it. Leaky ducts not only reduce the cooling efficiency but also increase energy consumption, as the system has to work harder to compensate for the lost cool air.
A Frozen Evaporator Coil
The evaporator coil in your air conditioner absorbs heat from indoor air, though it can sometimes become frozen because of restricted airflow or low refrigerant levels, leading to cooling issues. This type of issue is often caused by either dirty air filters, blocked air vents, or low refrigerant levels.
An Oversized AC Unit
In some cases, an air conditioner may simply be too big for a home. If you’ve recently moved into a new home or are having issues with a new air conditioner, its size may be the issue. When an AC unit is too large for the space it needs to cool, it cools the air quickly but doesn’t run long enough to dehumidify it adequately.
Start Getting Relief Today
If you’re not getting the cooling relief you need on hot days, it is time to call the professionals here at Dr. HVAC Inc, where we proudly serve Margate, FL and the surrounding areas. Our technicians have extensive experience in recognizing and addressing cooling issues, and in addition to air conditioning maintenance and repair, we offer services for both indoor heating and air quality as well.