7 Powerful Fixes for Common AC Problems on Hot Days
When summer heat peaks, there’s nothing worse than an AC that isn’t working right. If your air conditioner is blowing warm air, making strange noises, or leaking water, it’s time to troubleshoot. Here are 7 smart fixes for common AC problems that can help you stay cool when it matters most.
1. AC Blows Warm Air Instead of Cooling
Fix:
First, check your thermostat. Make sure it’s in cool mode and set lower than the current temperature. If that’s fine, check your air filter—a clogged filter can cause warm air to blow. Replace it if it’s dirty.
Next, check the outdoor unit. Clear any debris, leaves, or dirt that could block airflow. If the issue persists, it could be low refrigerant, and you’ll need a professional to recharge it.
Voice Search Query: “Why is my AC blowing warm air?”
Voice Search Query: “How to fix an AC blowing warm air?”
2. Strange Noises Coming from the AC
Fix:
Unusual noises can mean something inside your unit is loose or damaged. If you hear a banging noise, check for loose parts. A screeching sound may indicate a problem with the fan motor or compressor.
Turn off the AC and visually inspect the unit. Tighten any loose screws or bolts. If the noise continues, it’s best to call a professional.
Voice Search Query: “Why is my AC making strange noises?”
Voice Search Query: “How to fix an AC making noise?”
3. AC Unit Leaking Water
Fix:
Water leaking from your AC can mean a clogged drain line. Use a wet/dry vacuum to clear the line or flush it with vinegar and water. Another cause could be a frozen evaporator coil—this happens when airflow is blocked by a dirty filter.
Replace the filter and turn the unit off for a few hours to allow the coil to thaw.
Voice Search Query: “Why is my AC leaking water?”
Voice Search Query: “How to fix AC leaking water?”
4. Weak Airflow from Vents
Fix:
Check for blockages in your vents or ductwork. Furniture, curtains, or debris can reduce airflow. Also, ensure all supply vents are open. Next, inspect the air filter. If it’s dirty, replace it to improve airflow.
If airflow is still weak, you may need a professional to check the blower motor or ductwork.
Voice Search Query: “Why is my AC blowing weak air?”
Voice Search Query: “How to fix weak airflow in AC?”
5. AC Turns On and Off Too Frequently (Short Cycling)
Fix:
Short cycling can happen when your thermostat is exposed to heat or direct sunlight. Make sure it’s not near a heat source. A dirty evaporator coil can also cause short cycling, so try cleaning it.
If short cycling continues, your system may be oversized for your home, or low refrigerant could be the issue. A professional technician can help.
Voice Search Query: “Why is my AC turning on and off?”
Voice Search Query: “How to fix short cycling in AC?”
6. Foul Odors Coming from the AC
Fix:
Bad smells often mean mold or mildew is growing inside your AC. Check the unit for visible mold or dampness and clean it with water and vinegar. Clogged drain lines can also trap moisture and cause odors, so ensure the line is clear.
If the odor persists, consider a professional cleaning.
Voice Search Query: “Why is my AC smelling bad?”
Voice Search Query: “How to fix foul smells from AC?”
7. Uneven Cooling in Different Rooms
Fix:
Uneven cooling usually results from blocked vents or inconsistent airflow. Check all vents in the affected rooms to ensure they’re clear. Adjust the dampers in your ductwork to send more air to warmer areas.
If this doesn’t help, consider installing a zoning system or upgrading your thermostat. Adding insulation can also help keep rooms cool during extreme heat.
Voice Search Query: “Why is my AC not cooling some rooms?”
Voice Search Query: “How to fix uneven cooling in AC?”
Frequently Asked Questions
1. How often should I replace my air filter?
Replace your air filter every 1-3 months, especially if you have pets or allergies.
Voice Search Query: “How often should I change my AC filter?”
2. Why is my AC freezing up?
A dirty filter or low refrigerant could be the cause. Replace the filter and check refrigerant levels.
Voice Search Query: “Why is my AC freezing?”
3. Is it normal for an AC to drip water outside?
Some condensation is normal, but excessive water pooling may indicate a clogged or disconnected drain line.
Voice Search Query: “Is it normal for my AC to drip water outside?”
4. Can I clean the AC coils myself?
Yes, but do so gently. For deep cleaning, it’s best to call a professional.
Voice Search Query: “Can I clean my AC coils myself?”
5. When should I call a professional?
If you’ve tried basic troubleshooting (like replacing filters or cleaning drain lines) and the issue persists, it’s time to call a technician.
Voice Search Query: “When should I call an AC repair professional?”
Contact Us
Garrison & Garrison believes a productive home starts with clean air and a comfortable indoor environment. Whether you need an AC tune-up, an air purifier, or better humidity control, we can help optimize your home for maximum comfort and efficiency. Located in Huntsville, AL.
📞 Call us at (256) 859-8500
📧 Email us at [email protected]
🌐 Visit us at www.garrisonandgarrison.com
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Transform your home into the perfect oasis—because your comfort matters!
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