Frequently Asked HVAC Questions

The most common causes are: low refrigerant (due to a leak), a dirty condenser coil blocking heat transfer, a failed capacitor preventing the compressor from running, a tripped breaker on the outdoor unit, or a thermostat set to "fan" instead of "cool." Check your thermostat setting and the circuit breaker first. If those are fine, call us — most of these issues are diagnosed and repaired same day.

The federal minimum in Tennessee is 14.3 SEER2 (approximately 15 SEER). For most Nashville homeowners who run their AC heavily from June through September, we recommend 16–18 SEER as the sweet spot for value. The higher upfront cost of a 16 SEER unit vs. a 14 SEER unit typically pays back in energy savings in 4–7 years. 20+ SEER systems make sense for large homes with high usage. We'll show you the payback math for your specific situation.

A well-maintained AC system should last 15–20 years in Nashville's climate. Gas furnaces typically last 20–30 years. Heat pumps last 15–20 years. Systems that don't receive regular maintenance typically fail 5–7 years earlier. Our clients on maintenance plans routinely get 20+ years out of their systems. The second most important factor after maintenance is correct installation — an improperly sized or installed system will fail much sooner.

Ice on your AC is caused by low refrigerant (reducing the coil temperature below freezing) or restricted airflow (dirty filter, closed vents, or blocked return). Turn the system to "fan only" immediately — running a frozen AC causes compressor damage. Let it thaw completely (1–2 hours), then replace the filter and try again. If it freezes again, call us — you likely have a refrigerant leak that needs professional repair.

Modern cold-climate heat pumps perform excellently in Nashville's winters (average January lows around 29°F). They're also significantly more efficient than gas furnaces for most of the heating season. However, during Nashville's occasional hard freezes below 20°F, a gas furnace backup is valuable. We often recommend a dual-fuel system — a heat pump with a gas furnace backup — as the best of both worlds for Middle Tennessee.

Sudden increases in energy bills usually point to a dirty or faulty HVAC system. Common causes: a dirty condenser coil (system runs longer to transfer heat), low refrigerant (system works harder), dirty air filter (restricted airflow), failing capacitor (compressor struggles to start), or duct leaks (conditioned air escaping into walls/attic). A tune-up often cuts bills by 15–20% by restoring system efficiency. Call us for a diagnostic visit.

Consider replacing when: the system is 15+ years old, repair cost exceeds 50% of replacement cost, R-22 refrigerant is needed (no longer manufactured, very expensive), you've had multiple repairs in the past 2 years, the system uses excessive energy, or comfort is consistently poor. We give you our honest assessment — if repair makes sense financially, we'll tell you. We don't make more money on replacements than repairs.

Yes. We offer 0% financing for 18 months with approved credit through our financing partners. Same-as-cash plans are also available for longer terms. Most approved customers can be financed same-day. Don't let upfront cost stop you from getting the system your home needs — a new efficient system actually lowers your monthly expenses through reduced energy bills.

Yes. We service and repair all major brands including Carrier, Lennox, Trane, Rheem, York, Goodman, American Standard, Bryant, Heil, and Ruud. Our technicians receive ongoing manufacturer training and carry diagnostic tools for all brands. We also stock common parts for the most widely-used brands on our service trucks, which is why most repairs are completed in a single visit.