Your air conditioner works hard to keep your home cool and comfortable—especially during the hottest months of the year. But like any piece of equipment, it can develop issues over time. Catching these problems early can help you avoid expensive breakdowns and extend the life of your system.
Here are the top 5 warning signs that your air conditioner may need professional repair:
1. Weak or Warm Airflow
If your AC is blowing air, but it’s not cool—or if the airflow from your vents feels weak—there’s a good chance something’s wrong.
Possible causes:
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Clogged air filter
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Broken blower motor
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Low refrigerant levels
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Leaky or blocked ducts
What to do:
First, check and replace your air filter. If that doesn’t help, it’s best to call an HVAC technician to inspect the system and get to the root of the issue.
2. Unusual Noises
Your air conditioner should run relatively quietly. If you hear grinding, squealing, rattling, or banging sounds, it’s a clear sign something’s not right.
Possible causes:
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Loose or broken parts
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Worn-out belts
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Motor or fan issues
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Debris stuck in the unit
What to do:
Turn off the system immediately to prevent further damage and schedule a professional inspection.
3. Frequent Cycling On and Off
Air conditioners typically cycle on and off to maintain your set temperature. But if it’s happening too frequently or erratically, that’s a red flag.
Possible causes:
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Thermostat malfunction
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Dirty condenser or evaporator coils
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Oversized or undersized unit
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Refrigerant problems
What to do:
Frequent cycling not only affects comfort but also wastes energy. Have an HVAC pro evaluate the system for underlying issues.
4. High Energy Bills
A sudden spike in your energy bills—especially without increased usage—is often a sign that your AC is working harder than it should.
Possible causes:
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Aging or inefficient system
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Dirty filters or coils
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Leaks in ductwork
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Low refrigerant levels
What to do:
Regular maintenance can help prevent this, but if the problem persists, a repair (or even replacement) may be needed.
5. Leaking or Moisture Around the Unit
Any moisture or water pooling around your AC should never be ignored. It could be a sign of a serious issue.
Possible causes:
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Clogged or broken condensate drain
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Refrigerant leak (which is hazardous)
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Frozen evaporator coil
What to do:
Shut off the unit and call a technician right away. A refrigerant leak, in particular, can be dangerous and should only be handled by a licensed pro.
Don’t Wait for a Total Breakdown
Air conditioners often show signs of trouble before they completely fail. Addressing small issues early can save you time, money, and discomfort in the long run.
If your system is showing any of these signs, contact a certified HVAC technician for a proper diagnosis and fast repair. Staying ahead of AC problems means staying cool all summer long.
