Summers in Crown Point, Indiana, are known for their intense...
Read MoreNo Cool Air in Your Crown Point Home? Troubleshoot Your A/C Problems

Indiana summers in Crown Point can send the mercury soaring, and when the heat settles in, few things are worse than realizing your air conditioner isn’t keeping up. If your A/C is running but failing to cool your living space as it should, the discomfort can escalate quickly. Not to mention the stress over possible system damage or higher utility bills. Understanding what’s causing your A/C to underperform is the first step toward restoring comfort and energy efficiency to your home.
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So, why isn’t your A/C cooling as you expect? Some problems can be fixed at home with a little troubleshooting; others require a professional touch. Let’s take a closer look at the most common reasons Crown Point homeowners face A/C cooling issues and what you can do next.
How Your Air Conditioner Keeps You Cool
A typical central air conditioning system works by cycling warm indoor air over a chilled evaporator coil. The refrigerant in those coils captures heat from the air, turning from liquid to gas in the process, and then moves the collected heat outdoors via the condenser unit. Proper cooling depends on each component performing seamlessly. If there’s a breakdown anywhere in the system, your A/C’s performance drops.
This cooling cycle is especially critical during Crown Point’s muggy summer months, where heat and humidity put air conditioners through their paces. Even a small issue with airflow, refrigerant, or electronics can make the difference between a cool retreat and a stifling space.
Common Reasons Your A/C Isn’t Cooling
Certain A/C issues arise time and again for homeowners in the Crown Point area. Recognizing these problems can help you determine the best next steps:
Thermostat Malfunctions: Sometimes the source of the problem is as simple as incorrect thermostat settings or a dead battery. Other times, a malfunctioning thermostat can prevent the system from turning on or maintaining the desired temperature.
Dirty or Clogged Air Filters: Over time, your A/C’s filters trap dust, pollen, and other debris. When left unchecked, dirty filters restrict airflow, forcing your system to work harder and less efficiently, which impairs cooling and can overheat components.
Low Refrigerant Levels: If refrigerant is leaking or too low, your system cannot absorb or release heat properly. This results in weak cooling, icy coils, and potential compressor damage which are problems best handled by HVAC pros.
Obstructed or Dirty Coils: Both indoor (evaporator) and outdoor (condenser) coils need to stay clean for proper heat transfer. Dirt, grass clippings, and other debris on the coils make the A/C far less effective.
Frozen Evaporator Coils: Low airflow or refrigerant issues often cause the evaporator coils to freeze over, leaving you with tepid air or a system that won’t run at all.
Ductwork Leaks or Blockages: Gaps or blockages in your home’s ducts can allow cooled air to escape or reduce the amount of air reaching your rooms.
Electrical or Control Issues: Loose wiring, worn contactors, or faulty capacitors may keep your A/C from starting up or running reliably. Electrical components are best left to licensed HVAC technicians.
Troubleshooting Steps for Crown Point Homeowners
While some A/C issues need immediate professional attention, others you can solve with a little time and care. Here’s how you can troubleshoot a poorly cooling A/C system:
1. Inspect Thermostat Settings and Power Sources
Ensure your thermostat is set to “Cool” and the temperature is below your room’s current reading. If your thermostat runs on batteries, swap them out. If the screen is blank, check for tripped circuit breakers or blown fuses.
2. Check and Replace Air Filters
Remove your air filter and hold it up to the light. If you can’t see light through it, it’s time for cleaning or replacement. Clean filters boost cooling efficiency and reduce wear on the system. Aim to check filters monthly during heavy A/C use in Crown Point.
3. Clear the Outdoor Condenser
Walk outside and check your condenser unit for grass, leaves, or other debris collecting around or on top of it. Gently hose down the unit if it seems dusty. Leave at least two feet of clearance on all sides for best airflow.
4. Examine Vents and Ducts
Walk through your home and ensure all supply and return vents are open and unobstructed by furniture or curtains. If you notice weak airflow in specific rooms, there may be duct leaks or internal blockages that need professional repair.
5. Monitor for Ice or Strange Noises
If you spot frost or ice on the indoor lines or evaporator coil, turn off your system to let it thaw. Persistent freezing or unusual sounds like buzzing, rattling, or squealing are warning signs that a professional should diagnose.
6. Check the Drainage
Condensation from your A/C should drain outside the home. If the unit’s drain is clogged, water may back up or leak. Clearing the line gently with a mixture of vinegar and water can help. If the problem doesn’t resolve, call in an expert.
When to Call an A/C Professional in Crown Point
If basic troubleshooting doesn’t restore cool air, or you suspect a refrigerant leak, electrical issue, or major component failure, you’ll need a licensed technician to safely diagnose and correct the problem. In Crown Point’s climate, waiting too long can make minor issues cascade into bigger breakdowns.
Regular professional maintenance, such as coil cleaning, refrigerant checks, and safety inspections, can keep your air conditioning system running at peak efficiency and help you avoid surprises during the hottest weeks of the year.
Summers Plumbing Heating & Cooling: Your Crown Point Comfort Experts
Nothing disrupts summer comfort faster than a failing A/C system. As a trusted name in Crown Point, Summers Plumbing Heating & Cooling understands the unique needs of local homes and the stress of unexpected breakdowns. Our technicians use the latest tools and techniques to pinpoint and resolve cooling system issues quickly, minimizing downtime and helping you stay ahead of costly repairs.
Protect Your Comfort with Proactive Service
Summers Plumbing Heating & Cooling Is Ready to Help. If your A/C isn’t keeping your Crown Point home cool, you don’t have to suffer through another sweltering day. Let our experienced team handle the troubleshooting and repairs, so you can relax in total comfort. Call us at (219) 797-6150 or book your Crown Point A/C service online today. Don’t forget to check our local specials for extra savings!