AC Trouble? Here’s How to Know What to Do

Before scheduling service, there are a few things you can safely check on your own. If those don’t solve the problem, our team is ready to help restore your comfort quickly and professionally.

SAFE TO CHECK YOURSELF

✔ Thermostat Settings

Make sure it’s set to “Cool” and the temperature is lower than room temp.

✔ Tripped Breaker

Check your electrical panel and reset if necessary.

✔ Dirty Air Filter

Replace your filter if it looks clogged or dusty.

✔ Blocked Outdoor Unit

Remove leaves, brush, or debris around the condenser.

✔ Drain Pan Overflow

Check for visible clogging that can be gently cleared.

Not Sure What’s Causing the Problem?

When in doubt, it’s always safer to have it checked.

Call (507) 625-4328

TIME TO CALL KELLEY

✔ AC Won’t Turn On

Motor or compressor issues require professional diagnosis.

✔ Blowing Warm Air

Low refrigerant or leaks must be handled by licensed technicians.

✔ Grinding, Screeching, or Popping Noises

Internal components may be failing.

✔ Burning Smell

Possible electrical issue — turn system off immediately.

✔ Repeated Breaker Trips

Could indicate a serious mechanical or electrical fault.

✔ Water Leaking Inside

Clogged drain line or pump failure can cause damage quickly.

Common AC Problems

If your air conditioner isn’t working properly, don’t panic. Some issues are simple — others require professional repair. Here’s what to look for:

  • First, check:

    • Is the unit plugged in?

    • Is the thermostat set correctly?

    • Has the breaker tripped?

    If everything looks normal but your system still won’t start, the issue could involve the motor or compressor. These components require professional diagnosis.

    If your system won’t power on, it’s time to schedule service.

  • Warm air could be caused by:

    • Blocked outdoor condenser

    • Dirty air filter

    • Low refrigerant

    • Refrigerant leak

    If your copper lines aren’t cold to the touch, refrigerant may be the issue — and that’s something only a licensed technician should handle.

    Warm air usually means your system needs attention quickly.

  • Your AC should run quietly. If you hear:

    • Squealing → belt issue

    • Grinding → motor or bearing problem

    • Popping or pinging → loose internal component

    Turn the system off and call for service. Continuing to run it may cause further damage.

    Unusual sounds are often early warning signs.

  • Some condensation is normal. Pooling water is not.

    Possible causes:

    • Clogged drain pan

    • Dirty air filter

    • Blocked drain line

    • Failing condensate pump

    Water damage can escalate quickly; this is best addressed right away.

    Leaks should never be ignored.

  • Burning smells may indicate:

    • Overheating components

    • Electrical issues

    • Seized motor parts

    Musty smells could signal:

    • Dirty filter

    • Mold in ductwork

    • Blocked airflow

    Electrical smells require immediate professional attention.

    If you smell something unusual, turn the unit off and call.

Prevent Most AC Problems with Regular Maintenance

Many common breakdowns are preventable with routine service. Our maintenance visits help:

  • Catch small problems early

  • Improve efficiency

  • Extend equipment life

  • Prevent emergency repairs

Join the Comfort Protection Plan