Summer in Central Florida is brutal. The temperature hits 95 degrees with 80 percent humidity, and your air conditioner becomes the most important appliance in your home. When it works, you barely think about it. When it breaks, everything stops.
The good news is that most summer AC breakdowns are preventable. A few simple habits, some basic maintenance, and knowing what to watch for can keep your system running strong through the hottest months of the year.
In this article, we are going to walk you through practical, actionable steps you can take right now to protect your AC, avoid breakdowns, and stay comfortable all summer long.
The single most important thing you can do to prepare for summer is to schedule a professional AC maintenance visit in the spring, before the heat really kicks in.
A tune-up catches problems before they become breakdowns. A technician will clean the coils, check refrigerant levels, test electrical connections, inspect the condensate drain, and make sure everything is running the way it should. Small issues like a worn capacitor or a loose wire can be fixed on the spot, saving you from an emergency repair later.
Think of it like getting your car serviced before a road trip. You want to know the system is ready before you depend on it for three months straight.
This is the easiest and most important thing you can do yourself. A dirty air filter restricts airflow, makes your system work harder, and can cause the evaporator coil to freeze. In the summer, when your AC is running constantly, filters get dirty fast.
Check your filter every 30 days during the summer. If it looks gray, caked with dust, or you cannot see light through it, replace it. Some homes need a new filter every month. Others can go 60 days. It depends on how much the system runs, whether you have pets, and how dusty your home is.
Filters are cheap. A good filter costs a few dollars. A frozen coil or a burned-out blower motor costs hundreds or thousands. Do not skip this step.
Your outdoor condenser unit needs airflow to work properly. If it is covered in dirt, grass clippings, pollen, or blocked by plants, it cannot release heat efficiently. This forces the system to work harder and can lead to overheating or compressor failure.
Here is what to do.
Do this once a month during the summer, or more often if you mow nearby or have a lot of trees and pollen.
When it is 95 degrees outside, it is tempting to crank the thermostat down to 68 degrees. But forcing your AC to work that hard all day long puts unnecessary strain on the system and drives up your electric bill.
The U.S. Department of Energy recommends setting your thermostat to 78 degrees when you are home and raising it a few degrees when you are away. If 78 feels too warm, try running ceiling fans or adjusting the airflow in your home. Fans make the air feel cooler without putting extra load on the AC.
Also, avoid constantly adjusting the thermostat. Let the system cycle on and off naturally. Constantly changing the temperature forces the system to work harder and can shorten its lifespan.
Your AC removes humidity from the air, and that moisture has to go somewhere. It drains out through a condensate line. If that line gets clogged, water can back up and cause the system to shut down or, worse, leak into your home.
The condensate drain line is usually a white PVC pipe near the indoor unit. To keep it clear, pour a cup of white vinegar or a mixture of bleach and water down the drain once a month. This kills algae and prevents clogs.
If you notice water pooling around the indoor unit or the AC shutting off unexpectedly, a clogged drain line is a common cause. Call a technician to clear it before it causes water damage.
Catching problems early means smaller repairs and less downtime. Here are some warning signs that your AC needs attention.
If you notice any of these signs, do not wait. Call for AC repair before a small problem turns into a major breakdown.
Your AC does not need to run at full blast 24/7. On cooler days or in the evenings when the temperature drops, raise the thermostat a few degrees or open windows to give the system a break.
You can also reduce the load on your AC by closing blinds during the hottest part of the day, using your oven and dryer in the morning or evening instead of midday, and sealing any air leaks around windows and doors.
The less your system has to work, the longer it will last and the lower your electric bill will be.
A programmable or smart thermostat can automatically adjust the temperature based on your schedule. You can set it to raise the temperature when you are at work and cool the house down before you get home. This reduces runtime when you do not need it and saves energy without sacrificing comfort.
Smart thermostats can also alert you to problems. Some models will notify you if the system is running longer than usual, if the filter needs changing, or if something is wrong. This gives you a heads-up before a breakdown happens.
Even with the best maintenance, things can still go wrong. If your AC stops working in the middle of summer, here is what to do.
Keeping your AC running strong all summer is not complicated. It comes down to a few basic habits: change your filter, keep the outdoor unit clean, schedule a professional tune-up, and pay attention to warning signs.
Most summer breakdowns are preventable. A little effort now saves you from a lot of stress, discomfort, and money later.
If you have not had your AC serviced yet this year, now is the time. At ABS Heating and Air, we offer straightforward maintenance that keeps your system running the way it should. Give us a call, and we will make sure your AC is ready for whatever summer throws at it. You can also check out our HVAC maintenance checklist or learn more about preparing your system for seasonal changes.
Check your filter every 30 days during the summer. If it looks dirty, replace it. Some homes need a new filter every month, especially if the AC runs constantly, you have pets, or your home is dusty. Others can go 60 days. Let the condition of the filter guide you, not a set schedule.
The U.S. Department of Energy recommends 78 degrees when you are home and a few degrees higher when you are away. If that feels too warm, use ceiling fans to help circulate air. Setting the thermostat too low forces your AC to work harder and increases your energy bill without much added comfort.
You can gently rinse the outdoor condenser coils with a garden hose, but avoid using a pressure washer as it can bend the fins. For a deep cleaning or for the indoor evaporator coils, it is best to call a professional. They have the tools and knowledge to clean without causing damage.
The most common causes are a dirty air filter, blocked airflow, or low refrigerant. If the evaporator coil does not get enough warm air flowing over it, ice forms. Turn the system off, let the ice melt, replace the filter, and check that all vents are open. If it freezes again, call a technician to check for refrigerant leaks or airflow problems.
Change your filter regularly, keep the outdoor unit clean, raise your thermostat a few degrees, use ceiling fans, close blinds during the hottest part of the day, and schedule regular maintenance to keep the system running efficiently. A well-maintained system uses less energy and saves you money.
It is normal for your AC to run for long stretches on very hot days, but it should still cycle off once the house reaches the set temperature. If it runs nonstop and never cools the house down, that indicates a problem like an undersized system, low refrigerant, dirty coils, or ductwork leaks. Call a technician to diagnose the issue.