Introduction
Florence’s humid summers and cool winters can take a toll on your HVAC system. Over time, small issues can build up and turn into expensive repairs. At Building Technology Inc. (BTI Plumbing & HVAC), we help Shoals-area homeowners identify and fix these problems before they lead to breakdowns or high utility bills.
Here are the five most common HVAC problems in Florence, AL, why they happen, how to spot them early, and what you can do to keep your system efficient and reliable.
1. Poor Dehumidification and “Clammy Air”
Florence’s humidity levels often exceed 60%, which can make your home feel cool but still sticky. This happens when your system shuts off before removing enough moisture from the air.
Signs to watch for:
- Rooms that feel damp or muggy even with the AC on
- Condensation on windows or vents
- Musty odors, especially in basements
How to fix it:
- Run your fan for several minutes after cooling to help remove humidity
- Install a whole-home dehumidifier for better air balance
- Make sure your system is properly sized for your home’s layout
2. Frozen Evaporator Coils
In Florence’s humid environment, frozen coils are a common issue. When airflow is blocked or refrigerant is low, moisture freezes on the coils, cutting off circulation and cooling power.
Warning signs:
- Frost buildup on the indoor unit or refrigerant lines
- Reduced cooling performance
- Water dripping around the unit after thawing
Fix & prevention:
- Turn the system off to let coils thaw naturally
- Replace dirty filters and clean air vents
- Have a professional check for refrigerant leaks or airflow issues
3. Rising Energy Bills and Overworked Systems
When your HVAC system is running constantly or unevenly, it’s working harder than it should. This leads to higher energy bills, worn-out parts, and reduced efficiency.
What to look for:
- Higher utility costs despite consistent use
- Warm or cold spots in different rooms
- The system cycles on and off frequently
Preventive maintenance:
- Schedule biannual HVAC tune-ups (spring and fall)
- Clean coils, check refrigerant, and tighten electrical components
- Seal and insulate ductwork to reduce energy loss
4. Indoor Air Quality Issues and Mold Growth
With Florence’s humidity, moisture buildup inside ductwork and coils creates ideal conditions for mold and mildew. This can lead to poor indoor air quality and allergy symptoms.
Common symptoms:
- Musty odors coming from vents
- Visible mold spots around registers
- Increased allergies, coughing, or respiratory irritation indoors
Solutions:
- Use high-efficiency filters (MERV 8–13)
- Clean condensate pans and drain lines
- Consider installing UV light or an in-duct air purifier
5. Thermostat Malfunctions and Short Cycling
When your thermostat is in direct sunlight or near a vent, it can cause inaccurate readings, leading to short cycling. This frequent on-and-off pattern wears out components and increases energy use.
Common causes:
- Thermostat placement in heat or draft zones
- Loose wiring or old components
- Compatibility issues with the HVAC system
Easy fixes:
- Move the thermostat away from direct sunlight
- Upgrade to a programmable or smart thermostat
- Have a technician inspect connections and calibrate sensors
Conclusion and Soft Call-to-Action
At BTI Plumbing & HVAC, we see these five issues every season in Florence homes. The good news? Most can be prevented with regular inspections and maintenance.
If you’ve noticed uneven temperatures, high bills, or humidity problems, it’s time for a professional HVAC evaluation.
Contact Building Technology Inc. today to schedule a full HVAC inspection or maintenance service in Florence, AL—and keep your home comfortable year-round.
