Top 5 Common HVAC Problems Homeowners Face in Central Missouri (and How to Spot Them)

If you’re a homeowner in Central Missouri—serving Boonville, Columbia, Jefferson City, Lake Ozark, Osage Beach, and surrounding communities—your heating and cooling system is essential for year-round comfort. Like any hardworking equipment, your HVAC can develop problems, especially during Missouri’s hot summers and cold winters. At Liebi Mechanical LLC, we help local homeowners stay informed and prepared. Here are five of the most common residential HVAC issues, what causes them, and how to recognize the warning signs.

1. Dirty or Clogged Air Filters

Problem: Reduced airflow, decreased energy efficiency, and poor indoor air quality.

How to Spot It: If your air conditioner or furnace is running longer than usual or rooms feel stuffy, check your air filter. Most filters should be replaced every 1–3 months to keep your HVAC system running efficiently.

2. Thermostat Issues

Problem: Inaccurate temperature readings or your heating/cooling system not turning on or off as expected.

How to Spot It: If your home feels too hot or cold despite thermostat settings, or the system cycles on and off frequently, your thermostat may need recalibration or replacement.

3. Refrigerant Leaks

Problem: AC isn’t cooling properly, higher utility bills, or hissing noises from the unit.

How to Spot It: If your air conditioner blows warm air or you notice ice on the coils, it could indicate a refrigerant leak. This is a common issue in Missouri summers and requires professional HVAC repair.

4. Electrical Component Failures

Problem: System won’t start, repeatedly trips breakers, or stops unexpectedly.

How to Spot It: If your HVAC system won’t power on or shuts off at random, electrical components like capacitors or relays may be failing. Electrical issues should always be handled by licensed technicians.

5. Drainage Problems

Problem: Water leaks around your indoor unit or musty odors.

How to Spot It: If you see water pooling or smell mildew, your condensate drain line may be clogged. Prompt attention can prevent water damage and mold growth in your home.

When to Call the Pros

While some HVAC maintenance—like changing filters—is simple for homeowners, others require expert care. If you’re unsure or notice persistent problems, Liebi Mechanical LLC is here to help with prompt, professional heating and cooling service across Central Missouri, including Boonville, Columbia, Jefferson City, Lake Ozark, Osage Beach, and more.

Stay tuned for more HVAC tips and advice on protecting your home’s comfort and efficiency. Have a question or a topic you’d like us to cover? Contact us or leave a comment below!