FB Pixel

Family Serving Since 1975

AC Blowing Hot Air? Here’s WHY & How to Fix It Yourself (Maybe!)

why is my ac blowing hot air

Is your home AC acting more like a heater than a cooler?  Struggling to escape the summer heat can be miserable, but don’t reach for the fans just yet! This guide will break down the common culprits behind a malfunctioning AC unit, along with some potential DIY fixes (we’ll be honest about when to call a professional).  Let’s troubleshoot that hot air and make your home feel comfortable again!

Top 4 Common Reasons Why Your AC Is Blowing Hot Air

When your sanctuary turns into a sauna, there are several common culprits behind your air conditioning unit’s rebellion. Here are the most frequent reasons we’ve encountered in our extensive experience:

1. Thermostat Settings Mismanagement

One of the first things to check when your air conditioner starts blowing hot air is the thermostat settings. It may sound simple, but it’s not uncommon for settings to be inadvertently changed, setting the system to ‘heat’ mode instead of ‘cool.’ Ensure the thermostat is set correctly and the fan is on ‘auto’ rather than ‘on,’ which circulates air non-stop, regardless of the cooling.

2. Refrigerant Leak

The lifeblood of your AC system, refrigerant, is crucial for cooling your home. A leak in the system can lead to decreased efficiency and the unit blowing warm air. Signs of a refrigerant leak include ice on the refrigerant lines, hissing noises, or a noticeable decrease in cooling power. Due to environmental and safety concerns, addressing a refrigerant leak requires professional intervention.

3. Dirty Air Filter

A clogged air filter restricts airflow, making it hard for your system to circulate cool air. Over time, this can cause the unit to overheat and blow out warm air instead. Regularly checking and replacing your air filter (every 1-3 months, depending on usage and filter type) can prevent this issue and improve your AC’s efficiency and air quality.

Filters for Reducing CO2 From the Air

4. Outdoor Unit Issues

The outdoor unit of your AC plays a pivotal role in expelling heat from your home. If it’s dirty, obstructed by debris, or damaged, it can’t perform this function efficiently, leading to your system blowing warm air. Ensuring the area around the unit is clear, and the unit itself is clean can significantly impact performance.

DIY Tips for Troubleshooting AC Problems

Reasons Your Air Conditioner May Be Buzzing

Before reaching out for professional help, there are a few troubleshooting steps you can safely undertake to potentially resolve your AC blowing hot air. These DIY fixes not only save you time but might also save on repair costs if the issue is minor. Here are some tips to get you started:

Verify Thermostat Settings

Begin with the basics: ensure your thermostat is set to “cool” and the temperature is set lower than the current room temperature. It’s easy to overlook, but it’s also the easiest to fix.

Clean or Replace Your Air Filter

A dirty filter is one of the most common reasons for AC inefficiency. Check your air filter, and if it’s clogged with dust and debris, either clean it (if it’s reusable) or replace it. This simple step can significantly improve airflow and cooling efficiency.

Inspect the Outdoor Unit

Make sure there’s no debris, such as leaves, dirt, or grass clippings, blocking the outdoor unit. Such obstructions can impair the unit’s ability to expel heat, leading to warm air circulating inside. Keeping a 2-foot clearance around the unit can help prevent such issues.

Check for Ice on the Evaporator Coils

If you notice ice buildup on the evaporator coils, it could indicate airflow issues or a refrigerant leak. Turn off your AC to let the ice melt, and check the air filter or airflow restrictions. If the problem persists, it’s time to contact a professional, as it might indicate a more serious issue.

Ensure Proper Electrical Connections

Sometimes, an AC unit blowing hot air can be due to tripped circuit breakers, blown fuses, or disconnected power. Check your electrical panel and any external safety switches to ensure everything is in order.

While these tips cover basic troubleshooting steps, they’re not exhaustive and might not solve all issues. If your AC continues to blow hot air after trying these suggestions, it’s crucial to call in the experts. Our skilled technicians at Cartwright Heat & Air are equipped to diagnose and fix more complex problems, ensuring your system runs smoothly and efficiently.

The Importance of Regular AC Maintenance

Residential AC Maintenance In Tulsa, OK

Regular maintenance is the backbone of a long-lasting, efficient air conditioning system. It’s not just about fixing problems when they arise but preventing them from happening in the first place. Here’s why regular AC maintenance is vital:

Prevents Unexpected Breakdowns

Routine maintenance helps catch small issues before they escalate into significant, costly repairs. By keeping your system in top shape, you’re less likely to face the dreaded scenario of your AC blowing hot air on the hottest day of the year.

Extends Your System’s Lifespan

Just like any major appliance, an AC unit wears down over time. Regular maintenance can significantly extend the life of your system, ensuring you get the most out of your investment.

Improves Energy Efficiency

A well-maintained AC unit operates more efficiently, consuming less energy to cool your home. This not only reduces your carbon footprint but also lowers your utility bills, providing savings that add up over time.

Ensures Air Quality

A clean, well-maintained AC unit filters and circulates clean cold air throughout your home. Regular checkups and cleanings can prevent dust, dirt, and pathogens from circulating, ensuring you breathe healthier air.

Maintains Warranty

Many manufacturers require regular maintenance as a condition of the warranty. Keeping up with maintenance ensures you remain covered, protecting your investment.

customer discuss the affordable hvac PRODUCTS with professional from Cartwright heat and air

At Cartwright Heat & Air, we understand the importance of regular AC maintenance and offer comprehensive maintenance services designed to keep your system running smoothly. Our maintenance visits include thorough inspections, cleaning, and adjustments to optimize performance and efficiency. Investing in regular maintenance can save you from the inconvenience and discomfort of your AC blowing hot air when you least expect it.

Ready for Cool Comfort?

Experience unmatched air conditioning service with Cartwright Heat & Air! Whether it’s maintenance, repair, or a full system upgrade, our expert team is here to ensure your home stays comfortable year-round. Contact us today, and let’s turn your cooling woes into a breeze. Your comfort is our mission.

cartwright professional team member