Seasonal HVAC Maintenance in Michigan: Your Year-Round Checklist

Michigan gives your heating and cooling system a real workout. Hot, humid summers are followed by freezing winters, and your system works hard through every season. Regular seasonal maintenance is the simplest way to avoid surprise breakdowns, keep energy bills in check and extend the life of your equipment.

Here’s a season-by-season guide from our team, with over 35 years of experience serving Macomb County.

Spring: Get Your Air Conditioner Ready

• Replace or clean your air filter. A clogged filter reduces airflow and strains your system.
• Clear debris from around your outdoor unit so air can move freely.
• Test your AC on a mild day, before the first heat wave.
• Check your thermostat to make sure it reads accurately.
• Book a tune-up. Preventative maintenance catches small problems before they become costly repairs.

Summer: Keep Cool and Stay Alert

• Keep vents and registers clear of furniture and curtains.
• Watch for rising humidity in your home or business.
• Notice any strange smells from your vents.
• Pay attention to rattling, knocking or clanking noises.
• Keep an eye on your utility bills. A sudden increase can mean your system is struggling.

Fall: Prepare for Heating Season

• Schedule a furnace tune-up before the first cold snap, when HVAC companies get busiest.
• Change the air filter.
• Inspect your thermostat and set it for heating.
• Have your boiler or water heater checked if you have one. Units 10 years or older deserve extra attention.
• Pay attention to your pilot light. A yellow or flickering flame should be inspected.

Winter: Monitor and Maintain

• Keep vents and registers unblocked.
• Change filters as recommended.
• Listen for banging, whistling or scraping noises.
• Notice uneven heating or a furnace that cycles on and off too often.
• If something seems wrong, don’t wait. Call right away.

Don’t Forget Commercial Equipment

Restaurants, grocery stores and convenience stores depend on refrigeration all year. Walk-in coolers, freezers, glass door systems and ice machines need attention too. Watch for inconsistent temperatures, excess frost, odd noises, or ice machines producing small cubes or running slowly.

Why Maintenance Pays Off

• Fewer emergency breakdowns
• Lower energy bills from more efficient operation
• Longer equipment life
• More consistent comfort

And if we find a problem, you’ll get an honest assessment. We never pressure you into buying a new unit.

Schedule Your Seasonal Tune-Up Today

Call Astro Heating & Cooling Inc. at 586-725-5106 or email astrohvacr@gmail.com to request a free estimate. We serve residential and commercial customers throughout Macomb County, and emergency service is available 24/7.



Serving Chesterfield Twp., Armada, Algonac, Richmond, Washington, Romeo & Marine City, MI.