Question 1

How do I improve the efficiency of my AC unit?

Accepted Answer

Regular maintenance, cleaning or replacing filters, sealing ducts, and installing a programmable thermostat are the most effective ways to improve the efficiency of your AC unit.

Question 2

Why is my AC unit blowing warm air?

Accepted Answer

Potential causes include low refrigerant levels, a dirty filter, or a malfunctioning compressor. Schedule a diagnostic with a certified technician to identify and resolve the issue.

Question 3

How often should I replace my AC filter?

Accepted Answer

Most standard filters should be replaced every 1–3 months. Homes with pets or allergy sufferers may need more frequent changes. A clogged filter reduces efficiency and strains your system.

Question 4

What is SEER and why does it matter?

Accepted Answer

SEER stands for Seasonal Energy Efficiency Ratio. It measures how efficiently an air conditioner cools over an entire season. Higher SEER ratings mean lower energy costs — upgrading from a 9-SEER to a 13-SEER system can cut cooling costs by over 30%.

Question 5

How do I know if my AC system needs to be replaced?

Accepted Answer

Signs that your system may need replacement include frequent breakdowns, high repair costs, the unit being over 10–15 years old, inconsistent cooling, or a significant increase in energy bills.

Question 6

What size AC unit do I need for my home?

Accepted Answer

Proper sizing requires a professional evaluation that considers your home's square footage, insulation, windows, orientation, and local climate. An oversized or undersized unit performs poorly and wastes energy.

Question 7

How much does it cost to replace an AC system in Florida?

Accepted Answer

Costs vary based on the size, brand, and efficiency of the system as well as installation complexity. Killian's Air Conditioning provides transparent flat-rate pricing so you know the full cost before any work begins.

Question 8

What are the benefits of a programmable thermostat?

Accepted Answer

A programmable thermostat lets you set temperatures based on your schedule, reducing energy use when you are away and ensuring comfort when you are home. Smart thermostats can save up to 10% on heating and cooling costs.

Question 9

Why is my AC unit making strange noises?

Accepted Answer

Unusual noises such as banging, squealing, or rattling often indicate mechanical issues — loose components, a failing motor, or debris in the unit. Have the system inspected promptly to prevent further damage.

Question 10

How do I maintain my AC system between professional service visits?

Accepted Answer

Change filters regularly, keep the area around the outdoor unit clear of debris, check that vents are open and unobstructed, and monitor your energy bills for unexplained increases that may indicate a problem.

Question 11

What should I do if my AC stops working?

Accepted Answer

Check the thermostat settings, inspect the circuit breaker, and verify the filter is not clogged. If those checks do not resolve the issue, call Killian's Air Conditioning for prompt diagnosis and repair.

Question 12

How does humidity affect my AC system?

Accepted Answer

High humidity forces your AC to work harder to maintain comfort. Florida's coastal climate makes this especially important — a properly sized and maintained system dehumidifies effectively while cooling efficiently.

Question 13

What is the ideal thermostat temperature setting for Florida?

Accepted Answer

The U.S. Department of Energy recommends 78°F when you are home and higher when away. For every degree below 78°F, cooling costs increase by approximately 8%.

Question 14

How long does an AC system last in Florida?

Accepted Answer

In Florida's climate, the average lifespan of a well-maintained AC system is 10–15 years. Coastal exposure to salt air can shorten this, making regular maintenance especially important for homes near the water.

Question 15

What is included in an AC tune-up?

Accepted Answer

A professional tune-up typically includes inspecting and cleaning coils, checking refrigerant levels, testing electrical connections, lubricating moving parts, inspecting the duct system, and verifying thermostat accuracy.

Question 16

What are the benefits of an HVAC service agreement?

Accepted Answer

A service agreement provides scheduled maintenance, priority scheduling, discounted repairs, and extended equipment life. Killian's Air Cool Club members can save hundreds of dollars annually on energy and repair costs.

Question 17

Why is my AC leaking water?

Accepted Answer

Water leaks are often caused by a clogged condensate drain line, a dirty evaporator coil, or a refrigerant leak. A float switch can shut off your system automatically to prevent water damage. Contact a technician promptly.

Question 18

What is the difference between a heat pump and a central AC system?

Accepted Answer

A central AC system only cools your home, while a heat pump both cools and heats by moving heat rather than generating it. Heat pumps are highly efficient in Florida's mild winter climate.

Question 19

How can I reduce my energy bill in the summer?

Accepted Answer

Keep your thermostat at 78°F or above, use ceiling fans, seal duct leaks, improve insulation, schedule regular AC maintenance, and consider upgrading to a high-SEER system to significantly reduce cooling costs.

Question 20

Why does my AC run constantly?

Accepted Answer

A system that runs continuously may be undersized, have a dirty filter or coil, a refrigerant leak, or be working against a poorly insulated home. A professional inspection can identify the root cause.

Question 21

What is a two-stage or variable-speed AC system?

Accepted Answer

Two-stage and variable-speed systems adjust their output based on demand rather than simply running at full capacity. They provide better humidity control, quieter operation, and greater energy efficiency.

Question 22

How do I know if my ductwork needs to be sealed or replaced?

Accepted Answer

Signs of duct problems include uneven cooling between rooms, high energy bills, dusty air, and difficulty maintaining comfort. Professional duct testing can identify leaks and assess whether repair or replacement is needed.

Question 23

What refrigerant does my AC system use?

Accepted Answer

Older systems use R-22 refrigerant, which is no longer manufactured. Newer systems use R-410A or R-32. If your system uses R-22, upgrading to a new system is the most cost-effective long-term solution.

Question 24

Is it worth repairing an old AC system or should I replace it?

Accepted Answer

A common guideline is to replace if the repair cost exceeds 50% of the cost of a new system, or if the system is more than 10 years old. Killian's Air will provide an honest assessment of your options.

Question 25

What is an air handler and what does it do?

Accepted Answer

The air handler is the indoor component of your HVAC system. It circulates conditioned air throughout your home via the duct system and typically contains the evaporator coil, blower motor, and air filter.

Question 26

How can I improve indoor air quality?

Accepted Answer

Regular filter changes, air duct cleaning, installing HEPA or UV air purifiers, maintaining proper humidity levels with a dehumidifier, and scheduling regular HVAC maintenance all improve indoor air quality.

Question 27

Why is my AC unit freezing up?

Accepted Answer

A frozen AC unit is typically caused by low refrigerant, restricted airflow from a dirty filter or blocked vents, or a failing blower motor. Turn off the system and call a technician to diagnose the cause.

Question 28

How does salt air affect my AC system in Pinellas County?

Accepted Answer

Salt air accelerates corrosion of coils, cabinets, and refrigerant lines on coastal properties. Regular maintenance, corrosion-resistant coatings, and selecting coastal-rated equipment are essential in Pinellas County.

Question 29

What HVAC brands does Killian's Air Conditioning install?

Accepted Answer

Killian's Air partners with top-tier manufacturers to ensure you receive high-quality, reliable equipment backed by strong manufacturer warranties. We recommend systems matched to your specific needs and budget.

Question 30

How long does a typical AC installation take?

Accepted Answer

Most standard residential AC installations are completed in one day. More complex installations involving new ductwork or system upgrades may take longer. Killian's will give you a clear timeline before starting.

Question 31

What financing options are available for AC installation or replacement?

Accepted Answer

Killian's Air Conditioning has partnered with Wisetack to offer flexible financing for projects up to $25,000. Terms range from 3 to 60 months with APRs from 0 to 35.9%. Checking your options does not impact your credit score.

Question 32

What is an Energy Star certified AC system?

Accepted Answer

ENERGY STAR certified systems meet strict efficiency standards set by the EPA. They use approximately 8% less energy than conventional models.

Question 33

How does duct sealing improve AC efficiency?

Accepted Answer

Leaky ducts can reduce system efficiency by 20–30%. Sealing and insulating ducts prevents conditioned air from being lost before it reaches your living spaces, improving comfort and reducing energy costs.

Question 34

What is a float switch and why is it important?

Accepted Answer

A float switch is a safety device that automatically shuts off your AC system when the condensate drain pan fills with water, preventing water damage to your home from an overflowing pan or clogged drain line.

Question 35

How does proper AC installation affect performance?

Accepted Answer

Even the highest-rated system will underperform if improperly installed. Correct refrigerant charge, proper airflow, and secure duct connections are essential. Killian's Air ensures every installation meets manufacturer and industry standards.

Question 36

What is the minimum SEER rating required by federal regulations?

Accepted Answer

Federal regulations mandate a minimum SEER of 13.0 for most residential air conditioners manufactured after January 23, 2006. Many newer systems exceed this significantly to deliver greater efficiency and lower operating costs.

Question 37

How does Killian's Air Conditioning price their services?

Accepted Answer

Killian's uses flat-rate pricing, which means you receive the full cost of a repair or service before any work begins. There are no surprise charges or hidden fees — just transparent, honest pricing.

Question 38

What areas does Killian's Air Conditioning serve?

Accepted Answer

Killian's Air Conditioning serves St. Petersburg, Pinellas County, and the greater Tampa Bay Area, including Clearwater, Treasure Island, Seminole, Largo, and surrounding communities.

Question 39

Does Killian's Air offer 24/7 emergency service?

Accepted Answer

Yes. Killian's Air provides 24/7 emergency AC service. Cool Club service agreement members receive priority emergency scheduling, ensuring the fastest possible response when your system fails.

Question 40

How do corrosion-resistant coatings protect my AC system?

Accepted Answer

Corrosion-resistant coatings applied to outdoor unit coils and cabinets protect against the oxidation caused by salt air. For coastal Florida homes, these coatings can significantly extend the life of the outdoor unit.

Question 41

What is the Cool Club service agreement?

Accepted Answer

The Cool Club is Killian's Air Conditioning's service agreement program. Members receive scheduled preventive maintenance visits, priority emergency scheduling, discounted repair rates, and significant energy and repair cost savings throughout the year.

Question 42

How does an air purification system work with my HVAC system?

Accepted Answer

Air purification systems integrate with your existing HVAC to filter or neutralize contaminants including mold spores, bacteria, allergens, and VOCs as air passes through the system, improving indoor air quality throughout your home.

Question 43

What is involved in a duct cleaning service?

Accepted Answer

Professional duct cleaning removes dust, debris, mold, and allergens from your duct system using specialized tools and vacuum equipment. It improves airflow, reduces allergens, and can improve HVAC efficiency.

Question 44

Can I install a smart thermostat with my existing AC system?

Accepted Answer

Most modern smart thermostats are compatible with existing central AC systems. A Killian's Air technician can verify compatibility and install the thermostat correctly to ensure optimal performance and energy savings.

Question 45

What should I look for when choosing an HVAC contractor?

Accepted Answer

Look for proper licensing and certification, transparent pricing, strong local reputation, manufacturer partnerships for quality equipment, and a commitment to long-term customer relationships — all hallmarks of Killian's Air Conditioning.

Question 46

How can I tell if my AC system is properly sized for my home?

Accepted Answer

If your system runs very briefly before shutting off (short cycling), has difficulty controlling humidity, or cannot maintain your set temperature on hot days, it may be improperly sized. A professional assessment by Killian's Air can confirm proper sizing.

Question 47

What preventive measures can I take to avoid emergency AC breakdowns?

Accepted Answer

Schedule bi-annual professional maintenance, change filters regularly, keep the outdoor unit clear of debris, monitor for unusual noises or changes in cooling performance, and enroll in a service agreement for expert preventive care.

HVAC Frequently Asked Questions

Air Conditioning Frequently Asked Questions

Ready to Feel the Difference?