When your AC stops working properly, try these DIY troubleshooting steps before calling for professional help. Save time and money with these simple checks any homeowner can perform.
Is your air conditioner not cooling properly or making strange noises? Before you reach for the phone to call us at Rich’s AC, there are several simple checks you can safely perform yourself. These DIY troubleshooting steps might save you time, money, and the inconvenience of waiting for a service appointment during Florida’s hot weather. While we’re always here to help with your AC problems, knowing these basics can help you determine if the issue is something simple or if professional attention is truly needed.
Check Your Thermostat First
Many AC issues start with the thermostat. Before assuming your system has a major problem:
Make sure your thermostat is set to “cool” mode and at a temperature at least 5 degrees below the current room temperature. Sometimes the problem is as simple as someone accidentally switching the system to “heat” or “fan only” mode.
Replace the batteries if your thermostat is battery-powered. A dying battery can cause erratic behavior or complete failure to communicate with your AC system.
Check if the display is working. If it’s blank or displaying error codes, consult your owner’s manual or give us a call for guidance specific to your model.
Inspect Your Air Filter
A clogged air filter is one of the most common causes of AC problems in Central Florida homes. When filters get dirty, they restrict airflow, which can lead to reduced cooling, frozen coils, and system failures.
Locate your filter – it’s typically found in the return air duct or in a slot on the air handler unit itself. Gently remove it and hold it up to a light source. If you can’t see light passing through, it’s time for a replacement.
For most homes in Orange, Lake, Seminole, and Osceola counties, we recommend checking filters monthly during heavy use periods (summer) and replacing them every 1-3 months depending on your home’s conditions.
Clear the Area Around Your Outdoor Unit
Your AC’s outdoor condenser unit needs proper airflow to function efficiently. Take a quick walk around your outdoor unit and:
Remove any vegetation growing within 2 feet of the unit. Florida’s fast-growing plants can quickly encroach on your system.
Clear away leaves, grass clippings, and debris that might be blocking the sides of the unit.
Gently spray the exterior fins with a garden hose to remove dirt buildup, being careful not to use high pressure that could damage the delicate fins.
Check Your Circuit Breakers
AC systems typically connect to two separate circuit breakers – one for the indoor air handler and another for the outdoor condenser unit.
Locate your electrical panel and check if any breakers labeled “AC,” “HVAC,” or “Air Conditioning” have tripped. If a breaker has tripped, switch it fully to the “off” position before flipping it back to “on.”
If a breaker immediately trips again when the AC attempts to start, stop trying and call us – this indicates an electrical problem that needs professional attention.
Look for Blocked or Closed Supply Registers
Walk through your home and check all supply registers (the vents that blow air into rooms):
Make sure furniture, drapes, or rugs aren’t blocking the airflow from registers.
Confirm that all registers are in the open position. Sometimes they get accidentally closed, especially in rarely used rooms or after cleaning.
Ensure that at least 80% of your registers remain open, as closing too many can create pressure problems in your duct system.
Check for Ice on the Indoor Coil
If your AC is running but not cooling well, carefully remove the access panel on your indoor unit (after turning the system off) and check for ice buildup on the evaporator coil.
If you see ice, turn off the AC at the thermostat but leave the fan running. This will help melt the ice without risking water damage to your system. Once the ice has melted completely (which may take several hours), you can try running the system again.
Remember that frequent freezing often indicates an underlying issue that will likely require professional service.
When to Call Rich’s AC Services
While these DIY checks can resolve minor issues, don’t hesitate to call us if:
Your AC is making unusual noises like grinding, screeching, or loud banging
You notice water leaking from your indoor unit
Your system cycles on and off rapidly (short-cycling)
These troubleshooting steps don’t resolve the problem
You’re uncomfortable performing any of these checks yourself
As your neighbors in Central Florida for over 20 years, we understand how crucial reliable cooling is to your comfort. Our team of licensed technicians is just a phone call away when you need professional assistance.
Ready for Professional Help?
If you’ve tried these troubleshooting steps and your AC still isn’t working properly, it’s time for expert help. Our team at Rich’s AC is ready to diagnose and fix your system quickly and effectively.
Call us today at [phone number] or schedule online for prompt, professional service from the team your neighbors in Winter Garden, Orlando, Windermere, and throughout Central Florida have trusted for over two decades.
Remember, regular maintenance prevents many common AC problems. Ask about our affordable maintenance plans starting at just $129/year to keep your system running smoothly year-round.