Keeping your HVAC system in top shape is essential on Florida’s Space Coast, where high humidity, salty air, and year-round use put extra strain on your equipment.
With a few simple steps, you can learn how to maintain an air conditioning system, help your unit run efficiently, avoid unexpected breakdowns, and keep your home comfortable, all while saving money on energy bills.
Typical Components of an HVAC System
In order to maintain your HVAC system, you first need to know what you’re working with. Here’s a basic breakdown:
- Air conditioner or heat pump: Cools (and sometimes heats) your home, working overtime during long, hot summers.
- Air handler or furnace: Moves air through the system—if it’s dirty or blocked, your comfort suffers.
- Thermostat: Lets you set and control the temperature; smart thermostats can help you save energy.
- Ductwork and vents: Distributes air throughout your home—leaks or blockages can waste energy and reduce comfort.
- Air filter: Traps dust, pollen, and other particles, protecting your system and your lungs.
- Outdoor condenser unit: Releases or absorbs heat outside, exposed to Florida’s storms, salt, and debris.
Regular HVAC maintenance helps each part work efficiently and extends your system’s lifespan.
5 Common HVAC Issues and How to Troubleshoot Them
Many common HVAC problems can be prevented or mitigated with a little DIY care. Here’s what to look for, what you can do yourself, and when to call a pro.
#1. Clogged Air Filters
A clogged air filter is the #1 cause of HVAC problems, especially here on the Space Coast, where Florida’s long pollen season and coastal conditions can clog filters faster than you might expect. A dirty filter makes your system work harder, raises your energy bills, and can even lead to breakdowns.
To maintain your air filter:
- Check your filter every month, especially during heavy use or allergy season.
- Replace disposable filters or clean washable ones as directed (usually every 1–3 months).
- Choose a filter with a MERV rating that matches your needs—higher for allergies or pets, but check your system’s specs.
- Always turn off your system before changing the filter, and make sure the new filter is facing the right way.
If you notice persistent dust, poor airflow, or your system still struggles after a filter change, it’s time to schedule a professional HVAC maintenance visit.
#2. Malfunctioning Thermostats
Your thermostat controls your comfort and system efficiency. To prevent problems:
- Change batteries annually (if your thermostat uses them).
- Gently dust the exterior to keep sensors clear.
If you’re experiencing issues, make sure it’s reading the temperature accurately. Tape a reliable room thermometer to the wall near your thermostat and compare readings after 15–20 minutes. A difference of more than 2–3 degrees may mean your thermostat needs cleaning, calibration, or replacement.
If you still notice temperature swings or your system isn’t responding as it should, it’s time to call Ellington for professional troubleshooting or an upgrade.
#3. HVAC Vent and Register Obstructions
Blocked or dusty vents can cause uneven temperatures and weak airflow.
To avoid this problem, walk through your home and:
- Vacuum vents and registers to remove dust and pollen.
- Move furniture, curtains, or rugs that might block airflow.
- Check for signs of mold or heavy dust buildup—both can affect air quality and comfort.
Quick AC repair tip: If a vent register is stuck or difficult to adjust, try removing it and cleaning away any built-up dust or debris. Lubricate the moving parts lightly before reinstalling.
If you’ve done all that and still have hot or cold spots after clearing your vents, there could be a larger ductwork problem—a problem best left to an Ellington technician to solve.
#4. Poorly Maintained Outdoor Units
Florida’s salty air and storms can quickly clog or corrode your outdoor AC unit. Knowing how to maintain heating and air conditioning equipment—especially your outdoor units—not only helps prevent costly repairs, but also boosts energy efficiency and extends your system’s lifespan.
Here’s how to keep your equipment in peak condition:
- Clear leaves, grass, and debris from around the unit. Keep at least two feet of space clear.
- With the power off, gently rinse the coils with a garden hose to remove dust and salt buildup (never use a pressure washer).
- Before hurricane season, make sure the unit is secure and clear away any loose yard debris.
- Look for signs of rust, corrosion, or damage.
If you notice unusual noises, visible damage, or your system isn’t cooling well, call Ellington for a professional inspection.
#5. Humidity and Air Quality
High humidity and poor air quality are common complaints on the Space Coast. Too much moisture can make your home feel sticky and encourage mold growth, especially during the rainy season.
To help:
- Run your AC regularly to remove moisture from the air.
- Use exhaust fans in kitchens and bathrooms.
- Consider adding a dehumidifier or air purifier—see our indoor air quality solutions for more options.
If you spot mold, persistent odors, or allergy symptoms don’t improve, it’s time to bring in the pros.
Pro Tip: Know What NOT to DIY
Some HVAC issues are best left to licensed professionals for safety and warranty reasons.
Do not attempt:
- Handling refrigerant or electrical repairs
- Deep cleaning inside the air handler or condenser
- Diagnosing persistent noises, leaks, or electrical problems
DIY repairs in these areas can be dangerous and may void your warranty. For example, trying to fix wiring or recharge refrigerant without proper training can lead to injuries or costly system damage.
Most manufacturers require professional service to keep your warranty valid, and a certified technician can spot hidden issues you might miss. If you notice these problems, schedule AC repair with an Ellington technician.
Rely on Ellington When You Need an HVAC Professional
Regular DIY HVAC maintenance can help your system run better, save you money, and keep your home comfortable all year. But when you run into bigger problems, need a seasonal tune-up, or just want peace of mind, Ellington’s trusted technicians are here for you.
We offer air conditioning services, full HVAC maintenance, and fast AC repair for Rockledge, New Smyrna Beach, and the entire Space Coast. Contact us today for expert, local service and year-round comfort.
