When the summer heat settles over Monroe and the rest of Green County, your air conditioner becomes one of the hardest‑working systems in your home. But how do you know when your AC simply needs a routine tune-up—or when it’s actually time for a repair? Understanding the difference can help you stay comfortable, avoid major breakdowns, and keep energy costs under control.

At Lanz Furnace & Fireplace, we help homeowners make sense of their cooling systems every day. Here’s what you need to know about AC tune-ups, air conditioner maintenance, and the most common AC repair signs to watch for.

What Is an AC Tune-Up?

An AC tune-up is like an annual checkup for your air conditioner. It’s a preventative maintenance service designed to keep your system clean, efficient, and running smoothly all season long. For Wisconsin’s hot, humid summers, tune-ups are one of the best investments you can make in your home comfort.

During an AC Tune-Up, Our Technicians Will:

• Inspect and clean the condenser and evaporator coils
• Check refrigerant levels and ensure proper charge
• Clean the drain line and check for clogs
• Lubricate moving parts to reduce wear
• Tighten electrical connections for safety
• Test system performance and airflow
• Verify thermostat accuracy

The goal: catch small issues early, boost efficiency, and prevent unexpected breakdowns when Monroe’s temperatures climb.

Benefits of Regular AC Tune-Ups

• Lower energy bills thanks to improved system efficiency
• Longer system lifespan and reduced wear
• Fewer surprise repairs during peak season
• Better cooling performance throughout your home
• Healthier indoor air quality with a cleaner system

If your AC is running but not quite keeping up with demand, a tune-up is often all it takes to get things back on track.

What Is AC Repair?

While a tune-up is preventative, AC repair is corrective. Repairs are needed when a part has failed, the system has stopped working properly, or there’s a sudden drop in performance.

Common AC Repairs Include:

• Fixing refrigerant leaks
• Replacing a faulty compressor or capacitor
• Repairing blower motor issues
• Unclogging or replacing a damaged drain line
• Repairing electrical failures
• Replacing worn belts or sensors

The goal: restore your air conditioner’s function so it can cool your home effectively and safely.

Key AC Repair Signs to Watch For

Sometimes it’s obvious your cooling system needs help—other times, the warning signs are subtle. Call Lanz Furnace & Fireplace for AC repair if you notice:

• Warm air blowing from your vents
• Weak airflow or inconsistent cooling
• Unusual noises like grinding, rattling, or buzzing
• Frozen coils or ice buildup
• Unpleasant smells from the system
• Water leaks or moisture near the unit
• Spiking energy bills despite normal usage
• Frequent system cycling (turning on and off repeatedly)

If you’re experiencing any of these symptoms—especially during a Monroe heat wave—it’s best to shut off the system and call for service right away.

AC Tune-Up vs. AC Repair: How to Know Which You Need

• Your system is running, but not performing well: Start with an AC tune-up.
• Your system won’t turn on, is leaking, or making loud noises: You likely need an AC repair.
• You haven’t had maintenance in over a year: A tune-up can prevent repairs before they happen.
• Your AC breaks down frequently: A repair may help—but it might also be time to discuss replacement options.

If you’re not sure which service you need, our friendly technicians can help you diagnose the issue quickly.

Why Choose Lanz Furnace & Fireplace for Your AC Care?

As Monroe’s oldest continuously operating HVAC company—serving the area since 1887—we know how Wisconsin homes behave in both summer humidity and winter cold. Our team delivers honest guidance, prompt service, and high-quality workmanship you can count on.

• Local, family-owned service you can trust
• Expert Lennox Premier Dealer offering reliable, efficient cooling solutions
• 365-day emergency service for when things can’t wait
• Upfront pricing with no-pressure recommendations

Stay Cool and Comfortable All Summer

Whether your AC needs a simple tune-up or a more involved repair, we’re here to help keep your home running smoothly.

Call Lanz Furnace & Fireplace today to schedule your AC tune-up—or book a repair if your system is showing signs of trouble.

Your home comfort is our family’s tradition—serving Monroe, New Glarus, Brodhead, Monticello, Albany, and all of Green County with warm, reliable service.