Comfort. Always.

It’s usually one of three things: a dirty air filter blocking flow, a tripped breaker, or a refrigerant leak. Start by checking your thermostat settings and the filter; if those are fine, it’s time to call a pro to check the coolant levels.

SEER2 (Seasonal Energy Efficiency Ratio 2) measures how much cooling a system puts out per unit of energy it consumes. As of 2026, higher ratings (like 16+) mean significantly lower monthly operating costs, though the upfront equipment cost is higher.

Use the $5,000 Rule: Multiply the age of the unit by the cost of the repair. If the total exceeds $5,000, replacement is usually the smarter investment. Generally, if a system is over 15 years old and needs a major repair, it’s time to retire it.

• Banging: Usually indicates a loose part (like a connecting rod or blower wheel).
• Squealing: Often a failing motor bearing or a slipping belt. Turn the system off immediately if you hear these to prevent further mechanical “trauma.”

Install a smart thermostat to optimize run times, seal leaky ductwork (which can lose 20–30% of air), and ensure your attic insulation is up to modern standards. Even keeping curtains closed during the hottest part of the day helps tremendously.

A heat pump moves heat rather than generating it (like a refrigerator in reverse). In 2026, modern “cold-climate” heat pumps are incredibly efficient and can replace both your AC and furnace, though they may require an electric backup in extremely sub-zero regions.

No. An oversized unit will “short-cycle,” meaning it turns on and off too quickly. This prevents the system from properly dehumidifying your home and leads to uneven temperatures and premature wear. A “Heat loss, Heat Gain ” load calculation is the only way to find the perfect size for your home.

Expert Guide Tip: If you’re noticing your energy bills creeping up even though your habits haven’t changed, have you checked the date on your outdoor unit lately?