Why Is Your Air Conditioner Not Cooling Your Brooklyn Center Home?

If your AC is not cooling your Brooklyn Center, MN, home, there could be several reasons. It usually takes the experience and knowledge of an AC technician from Dean’s Home Services to diagnose the issue and find the solution. Still, you can do a few things yourself, which is why we created this guide on what can cause an AC to not cool properly. 

Why Is My AC Running but Not Cooling the House?

If you have noticed your air conditioner not cooling your Brooklyn Center home, it could be an airflow, electrical, refrigerant, or, for central ACs specifically, a duct issue. You can do a few diagnostic tests yourself before needing a home AC repair in Brooklyn Center from Dean’s Home Services.

Check Your Thermostat Before Troubleshooting the AC

This is always the first step in troubleshooting why your AC is running but not cooling in Brooklyn Center. Confirm that the thermostat is set to “Cool” rather than “Heat” or “Fan Only,” and that the temperature is set several degrees below the current room temperature. 

If the fan is set to “On,” it will blow air continuously, including air that hasn’t been cooled during off cycles. A thermostat with low batteries, a blank screen, or one near direct sunlight can also cause issues. If you are unsure your thermostat is reading the indoor temperature correctly, test it with another thermostat and compare.

A Dirty Air Filter Can Restrict Cooling

Dirty air filters are the most common reason for restricted cooling in air conditioners. Your air filter catches dust, pet dander, and debris before they reach the blower and coils. But when it clogs, your system cannot pull in enough air. This causes weak airflow and sometimes warm air to come through your vents when it’s paired with frozen coils. Dirty air filters are the number one reason for an AC blowing non-chilled air.

Check your air filters every one to two months, and replace them if you can’t see light through them when you hold them up. 

Blocked or Closed Vents Can Reduce Airflow

Here’s another factor that can reduce airflow. Piling furniture or objects in front of vents prevents air from circulating properly. Vents can also close when pushed against furniture, so make sure they have enough room to breathe and are always open. 

A Frozen Evaporator Coil Can Stop Your AC From Cooling

The AC’s evaporator coil sits inside your indoor unit and absorbs heat from your home’s air. When airflow is restricted, or refrigerant levels are low, the coil can get so cold that moisture freezes on its surface. Once the coil freezes, ice blocks it from absorbing heat. 

Signs of a frozen AC coil in Brooklyn Center are: 

• Ice on refrigerant lines.
• Weak airflow.
• Water pooling by the indoor unit.

If you suspect a frozen evaporator coil, turn off the AC and run the fan alone. It should thaw, but if it doesn’t, a professional needs to take a look. 

Dirty Outdoor Condenser Coils Can Reduce Heat Transfer

Your outdoor condenser unit releases the heat it pulls from your home. Outdoor elements like dirt, dust, tree twigs, pollen, and leaves can get lodged inside your condenser unit and its coils, restricting that important heat release, which directly affects the cooling capabilities of the AC and drives up your energy bills. 

Clean around the condenser and remove any debris that could fall into it during the spring. Also see this list of DIY maintenance tips.

If coils are too dirty to clean, a technician at Dean’s Home Services needs to replace them. This is one of the many AC repairs in Brooklyn Center, MN, that we provide. 

Low Refrigerant Can Affect Cooling Performance

Refrigerant is the lifeblood of your AC. It absorbs and releases heat, allowing your unit to deliver cooled, conditioned air. When refrigerant levels are low, the unit can no longer cool properly, leading to frozen coils and lines, warm air blowing, and higher energy bills.

If you hear a hissing sound when the AC is running, it usually points to a refrigerant leak somewhere in the line. Always call Dean’s Home Services for this air conditioner repair in Brooklyn Center, MN.

A Failing Compressor Can Prevent Proper Cooling

If refrigerant is the blood of an AC, the compressor is its heart. It pressurizes the refrigerant and moves it through the AC. When it begins to fail, your central AC will not cool your Brooklyn Center home. 

A failing compressor is signaled by: 

• Loud clanking or grinding noises.
• Short cycling, meaning the unit turns on and off before a complete cycle.
• Constantly tripped breakers.
• The outdoor unit runs, but the indoor fan doesn’t.
• Warm air coming from the vents.
• Weak airflow from AC in Brooklyn Center.

Electrical Problems Can Interrupt AC Operation

Many components, including capacitors, contactors, relays, wiring, and the AC control board, require proper power and correct wiring to function. One electrical issue can quickly trigger another. 

The best thing to do is check your breaker to see if it’s tripped. If it trips again, always call Dean’s Home Services. If you smell burning or hear loud buzzing, shut off the AC and wait for air conditioning repairs in Brooklyn Center, MN.

Leaky or Damaged Ductwork Can Waste Cooled Air

Occasionally, a weak airflow or cooling issue isn’t actually coming from the AC unit but from your ductwork, the network that pushes the conditioned air throughout your home. 

Leaky ducts or damaged sections can trap conditioned air in attics, crawl spaces, and even in between walls. If you notice uneven temperatures between floors, dusty air, or whistling noises from vents, have a Dean’s Home Services technician inspect your ductwork and assess whether it needs central air repair in Brooklyn Center.

Why Your AC May Struggle During Hot Minnesota Weather

Minnesota summers, with periods of intense heat and increased humidity, push ACs to the extreme. During a heat wave, an AC will continue to run, making any weak points, like dirty coils, air filters, clogged condensate lines, or any of the above we described, quite obvious. This is especially true during the day when temperatures are highest. Your AC may work fine at night because temperatures are lower. 

High humidity also makes the air in your home feel warmer and forces the system to work overtime to remove moisture before cooling it. If the AC isn’t in peak condition, it may feel like the AC is blowing warm air in your Brooklyn Center home.

What to Check When Some Rooms Are Warmer Than Others

If some rooms are warmer than others, you likely have airflow issues. Always check: 

• Whether your vents are blocked or closed. 
• For any leaks within the ductwork or whistling sounds.
• Your AC’s air filter condition.

When an Air Conditioner Needs Repair Instead of Troubleshooting

Your AC should take around three hours to cool your entire house during a hot day. If not, you now know how to do AC troubleshooting in Brooklyn Center to see what’s wrong. Still, there are many instances when it’s best left to the professionals: 

• Signs of a refrigerant leak. 
• Ice is forming on coils and lines even after thawing.
• Loud grinding, screeching, or hissing noises. 
• Strange smells, where musty ones point to mold and burning point to electrical issues.
• A sudden jump in your home energy bill.
• A constantly tripped breaker.

If any of these are occurring, turn off your AC and call Dean’s Home Services. 

How Routine AC Maintenance Helps Prevent Cooling Problems

Preventative maintenance is the smartest way to guarantee your AC is ready for the hot Minnesota summers. 

It’s easy to stay on top of this with Dean’s Home Services Club Membership plan. 

This plan covers air conditioning services in Brooklyn Center and is designed to catch minor issues before they turn into costly repairs. We also handle all AC installations for Brooklyn Center. Check out our glowing reviews from countless customers.

We also cover Twin Cities surrounding areas like Maple Grove, Crystal, and Albertville.

Restore Your Home Comfort With Dean’s Home Services

Having a well-working AC is a necessity for Minnesota summers, so why not rely on the expertise of Brooklyn Center’s top air conditioning company? Dean’s Home Services diagnoses and repairs all AC issues and offers preventative maintenance strategies so you’re never left sweating. Call us today to schedule an AC consultation.