As summer temperatures rise in White Bear Lake and throughout the Twin Cities, your air conditioner becomes a critical part of your home’s comfort. But what happens when it suddenly stops working, starts making strange noises, or isn’t cooling the way it used to? At Four Seasons Air Specialists, we’ve seen it all—and we’re here to help you avoid the most common AC problems before they turn into expensive repairs.
Here are five common AC issues and practical tips on how to prevent them.
Clogged or Dirty Air Filters
The problem: One of the most frequent causes of AC trouble is a dirty or clogged air filter. When filters aren’t changed regularly, they restrict airflow, reduce efficiency, and can even cause the system to freeze up.
How to prevent it:
- Check your filter every 30 days during cooling season and replace it at least every 1–3 months. If you have pets or live in a high-pollen area, you may need to change it more often.
- Pro Tip: Mark your calendar or set a phone reminder to check your filter monthly—it’s a simple step that can make a big difference.
Refrigerant Leaks
The problem: Refrigerant is what cools the air inside your AC system. If there’s a leak, your unit won’t cool properly and may even stop working altogether. You might notice warm air from the vents, hissing noises, or ice on the refrigerant lines.
How to prevent it:
- While you can’t prevent every leak, annual maintenance can catch small issues before they become big ones. A trained technician will inspect your lines for leaks and ensure the refrigerant levels are correct.
- Warning: Never try to recharge refrigerant yourself—this is a job for certified HVAC professionals due to EPA regulations and safety concerns.
Thermostat Malfunctions
The problem: If your thermostat is faulty or incorrectly calibrated, it can cause your AC to short cycle (turning on and off too quickly) or fail to maintain the right temperature.
How to prevent it:
- Upgrade to a programmable or smart thermostat to gain more control and improve efficiency. Also, make sure it’s installed in a location that isn’t affected by direct sunlight or other heat sources, as that can throw off its readings.
- Bonus: Smart thermostats can help you save money by learning your schedule and adjusting temperatures accordingly.
Drainage Problems
The problem: Your AC doesn’t just cool—it also removes humidity. That moisture collects in a drain pan and exits through a drain line. If the line clogs, it can cause water to back up into your system, leading to leaks or mold growth.
How to prevent it:
- Have your condensate drain line inspected and flushed at least once a year during a seasonal AC tune-up. If you notice water pooling around the unit, call for service right away.
Electrical or Capacitor Failures
The problem: AC units rely on electrical components to start and run smoothly. Over time, capacitors can wear out, wires can corrode, or relays can fail—especially during frequent cycling in hot weather.
How to prevent it:
Routine inspections by a qualified technician can uncover signs of electrical wear or damage. Preventative maintenance allows parts to be replaced before failure, helping you avoid unexpected system shutdowns during a heatwave.
Keep Your AC in Peak Condition with Preventative Maintenance
The best way to prevent AC issues is with a professional maintenance plan. At Four Seasons Air Specialists, we offer comprehensive seasonal inspections that include:
- Cleaning coils and drain lines
- Checking refrigerant levels
- Inspecting electrical connections
- Testing thermostat operation
- Replacing air filters (or reminding you when it’s time)
Regular tune-ups not only keep your system running efficiently—they also extend the life of your AC unit and reduce the risk of major breakdowns.
Need Help with Your AC? We’re Just a Call Away.
At Four Seasons Air Specialists, we’ve been helping homeowners in White Bear Lake and surrounding areas stay comfortable since 1974. Whether you need fast repairs or a reliable tune-up, our experienced HVAC technicians are ready to help.
✅ Licensed & certified professionals
✅ Friendly, honest service
✅ Emergency repairs available
✅ Family-owned and trusted since 1974
📞 Call us today at 651.4265254
