Why Is My Air Conditioner Blowing Hot Air? Four Reasons Explained

Two air conditioning units outside of a white paneled houseExperiencing air conditioner problems during the summertime is an ordeal you want to avoid. For instance, if you reside in Northern Virginia, the last thing you want when enduring scorching summer days is to have your AC blowing warm air when it’s supposed to be blowing cool air. Unfortunately, airflow issues are a common culprit for these inconveniences. Familiarizing yourself with the typical causes of air conditioner problems is essential. You can say goodbye to the frustrations of having your AC unit blow warm air during the peak of summer.

If you need professional air conditioning service in Northern Virginia, look no further. Schedule your appointment with C.B. Lucas to ensure your AC unit is in optimal condition.

Thermostat Issues

When your air conditioner blows hot air, it can indicate thermostat problems. If you have the air conditioner manual, it’s worth checking if your thermostat settings are correct. If the problem continues, replacement or resetting the thermostat may be necessary.

Review the split and window AC unit thermostat settings to troubleshoot the issue. Switch the settings to “auto” mode instead of “on” mode, ensuring the fan operates only when the air is cooled. Double-check if you accidentally switched the thermostat to heat mode.

Long-Term Solution: Consider investing in a programmable thermostat as a long-term solution. Older control systems are prone to malfunctions. With a programmable thermostat, you can maintain a consistent temperature inside your home. The energy savings will make the investment worthwhile.

Low Refrigerant

Low refrigerant is another common issue. Refrigerant is important for maintaining performance as it absorbs heat and humidity from the air. When your AC is not cooling effectively, it may indicate a refrigerant leak, and the remaining amount may not be sufficient to keep your home cool.

Addressing low refrigerant is more complex than just replacing, and repairing the leaks can be time-consuming and costly. If left unchecked, low refrigerant levels can even damage the compressor motor, which may result in smoke coming from the AC unit. Some signs of a refrigerant leak include hissing or bubbling noises and the presence of ice buildup on the outside unit.

Get Professional Help: If you suspect a refrigerant leak in your AC unit, contact a qualified technician in NOVA. A leaking refrigerant poses health and safety risks, requiring immediate repair. A professional technician can accurately locate the leaks and perform the necessary repairs to restore your AC unit’s proper functioning.

Fan Problems

When your AC unit’s fans fail to work properly, it can lead to poor airflow and hot air blowing from your AC instead of cool air. Several factors can contribute to fan problems, including faulty motors, worn belts, lack of lubrication, and the buildup of dirt and debris. Addressing these issues is crucial to prevent further damage, such as compressor failure.

Address fan problems: Check the fan motor to assess if it requires replacement or if a thorough cleaning can restore its functionality. If the motor is still operational but running at a reduced speed, seek assistance from a professional AC repair service. Additionally, clean the fan blades using a vacuum cleaner and a soft cloth to eliminate any dirt or debris that might have accumulated. Regular cleaning of the blades maintains optimal airflow and prevents potential issues from arising in the future.

Dirty Condenser Coils

The condenser coils in your air conditioner play a vital role in removing heat from the air and expelling it outside your home. These coils can accumulate dirt and grime over time, hindering their ability to transfer heat. This can result in your AC unit blowing hot air instead of cool air. Dirty condenser coils put excessive strain on the entire system, increasing wear and tear on its components.

Clean your coils: To effectively clean dirty condenser coils, follow these steps for proper maintenance. First, create ample space around the outdoor unit by removing weeds, vegetation, or debris. This allows for sufficient airflow and prevents further accumulation of dirt. Next, power off the air conditioner before cleaning to avoid electrical hazards. Then, using a hose, gently spray water onto the condenser coils to dislodge and wash away the caked-up dirt and grime. It’s important to be cautious and avoid excessive pressure that could bend the delicate fins. Finally, to maintain the optimal performance of your AC unit, schedule regular maintenance, including condenser coil cleaning, with a professional HVAC technician.

Schedule AC Repair With C.B. Lucas

Take control of your air conditioning and ensure a cool, comfortable home all summer. With our 24/7 emergency service, NATE-certified technicians, and family-owned operation, we provide unmatched expertise and reliable solutions.

Don’t let your air conditioner blow hot air. For service in NOVA today, call C.B. Lucas at 703.590.3700 or schedule an appointment online.

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