FAQ

Answers techs give Port St. Lucie homeowners every week.

Straight answers techs give Treasure Coast homeowners every week—searchable and linked into repair, replacement, and maintenance paths.

Talk to Flux Contractor Demo
What does HVAC mean?
HVAC is an acronym that stands for Heating, Ventilation, and Air Conditioning—the furnace/heater, air conditioner, and ductwork that regulates your home’s temperature.
What is my warranty on my air conditioner?
Your warranty varies according to the brand, but many offer a five-year warranty on their products. Look for the label on the outside of the unit (production date and model number), then check the brand’s website. Need warranty repair?
What do the noises from my air conditioner mean?
Units should run fairly quietly. Whooshing on startup or loud banging, knocking, or rattling usually means a loose or broken part that needs replacement. Emergency path →
What size air conditioner do I need?
Size, SEER, BTUs, and output depend on home size, windows, occupants, and where the system must fit. Get a free estimate
What is a tune-up, and do I need one?
A seasonal tune-up is regular maintenance for your heat pump, heater, condenser, and coils—inspecting worn parts, cleaning, and restoring efficiency. $129 tune-up special
How frequently do I need to change my air filter?
With allergies or pets / high pollen, every ~60 days. Otherwise about every three to four months. Maintenance agreement includes free filters.
Is my indoor air quality making me sick?
It could—mold spores, pet dander, pollen, and recirculated bacteria/viruses can aggravate respiratory issues. IAQ solutions
How can I make my indoor air smell better?
Sprays only mask odors. An indoor air purification system removes odor-causing elements; duct cleaning helps too.
How does a home humidifier work?
A whole-home humidifier adds moisture via steam while connected to your HVAC—helpful against dry air on skin.
What is the popping sound in my walls when HVAC runs?
Often ductwork design vibration or loose connections. A Flux Contractor Demo tech can inspect and recommend next steps.
Why does my HVAC system need regular maintenance?
Like a car: clean debris that causes friction and replace worn parts before they cascade into bigger failures. $300 agreement