5 Surprising Reasons Your AC Isn’t Working and How to Fix Them

11 Sep

When the summer heat becomes unbearable, the last thing you want is a malfunctioning air conditioner. Unfortunately, AC issues are a common problem that can disrupt your comfort and peace of mind. If you’re facing an underperforming AC unit, it’s essential to understand the potential causes to address the problem effectively.

Ahead in this post, we’ll explore five surprising reasons your AC isn’t working and how you can fix them. Whether you’re a DIY enthusiast or prefer to call in the professionals, knowing these common issues can help you decide when to contact AC Repair Coral Springs experts.

Issue 1: Incorrect Thermostat Settings

It might sound too simple to be true, but one of the most overlooked reasons for AC malfunction is incorrect thermostat settings. Your thermostat is the brain of your air conditioning system, dictating when and how it operates. If your thermostat isn’t set correctly, it can cause the entire system to behave erratically, or not work at all.

Why It Happens:

User Error: Often, the thermostat is accidentally set to the wrong temperature or mode, such as “heat” instead of “cool.”
Low Battery: If your thermostat runs on batteries, low power can cause it to malfunction.
Outdated Thermostat: Older, non-programmable thermostats may not work efficiently with modern AC systems.

How to Fix It:

Double-Check Settings: Ensure your thermostat is set to “cool” and the temperature is set to your desired level.
Change Batteries: If the display is fading or blank, replace the batteries.
Upgrade: Consider upgrading to a programmable or smart thermostat for better control and efficiency.

If these simple fixes don’t resolve the issue, it could be a sign of a deeper problem within the AC system, and it may be time to contact AC Repair Coral Springs specialists for professional diagnosis.

Issue 2: Faulty Capacitors and Relays

Capacitors and relays are small but crucial components of your AC system that help power the motors that drive the compressor and fans. If these components fail, your AC could struggle to start, or worse, it may not run at all.

Why It Happens:

Age and Wear: Over time, capacitors can degrade, losing their ability to store and release energy, while relays can wear out, failing to close the electrical circuit properly.
Power Surges: Electrical storms or power surges can damage these sensitive components.
Overheating: High temperatures can cause capacitors to overheat and fail prematurely.

How to Fix It:

Check for Symptoms: A failing capacitor may cause a clicking sound or a humming noise when the AC is trying to start. If you notice these signs, turn off the system immediately to avoid further damage.
Professional Replacement: Replacing capacitors and relays requires electrical knowledge and should be handled by a professional HVAC company. Attempting to replace these parts yourself can be dangerous if you’re not experienced with electrical systems.

Issue 3: Frozen Evaporator Coils

The evaporator coils in your AC are responsible for absorbing heat from your home. If these coils freeze, your AC will struggle to cool your home, and in some cases, it may stop working entirely.

Why It Happens:

Poor Airflow: Dirty air filters or blocked vents can restrict airflow, causing the coils to freeze.
Low Refrigerant: A refrigerant leak can also lead to frozen coils by reducing the amount of heat the coils can absorb.
Running AC in Cold Weather: Running your AC when outdoor temperatures are too low can also cause the coils to freeze.

How to Fix It:

Turn Off the AC: If you notice ice on the evaporator coils, turn off your AC immediately to allow the coils to thaw.
Check Air Filters: Replace dirty air filters and ensure all vents are open and unblocked to restore proper airflow.
Call a Professional: If the coils continue to freeze or if you suspect a refrigerant leak, contact an AC repair agency to inspect and repair the system.

Issue 4: Broken or Misaligned Blower Fan

The blower fan in your AC system is responsible for circulating air throughout your home. If the fan is broken, misaligned, or not working properly, it can lead to poor airflow and insufficient cooling.

Why It Happens:

Wear and Tear: Over time, the fan motor can wear out, or the fan blades can become loose or misaligned.
Debris Buildup: Dirt and debris can accumulate on the fan blades, causing them to become unbalanced.
Motor Issues: Electrical problems within the motor can cause the fan to operate erratically or stop working altogether.

How to Fix It:

Inspect the Fan: If you hear unusual noises or notice poor airflow, inspect the fan for debris buildup or loose blades.
Clean the Blades: Carefully clean the fan blades to remove any dirt or debris. Be sure to turn off the power to the AC unit before attempting any cleaning.
Professional Repair: If the fan is misaligned or the motor is failing, it’s best to have a professional AC Repair Coral Springs technician handle the repairs to ensure it’s done correctly and safely.

Issue 5: Poor Installation Practices

Sometimes, the root of your AC troubles lies in how the system was installed in the first place. Poor installation can lead to a range of issues, from inefficient cooling to frequent breakdowns.

Why It Happens:

Incorrect Sizing: If the AC unit is not properly sized for your home, it may struggle to cool efficiently, leading to excessive wear and tear.
Improper Ductwork: Ducts that are improperly sealed or installed can lead to significant energy losses and poor airflow.
Neglecting Manufacturer Guidelines: Failing to follow the manufacturer’s installation guidelines can lead to issues with performance and reliability.

How to Fix It:

Get a Second Opinion: If you suspect your AC was poorly installed, it may be worth having another professional inspect the system.
Consider Reinstallation: In some cases, it may be necessary to reinstall the system to correct any issues and ensure optimal performance.
Work with Experienced Installers: To avoid these problems in the future, always work with a reputable AC company that has a proven track record of quality installations.

Final Words: When to Call in the Experts

In conclusion, while some AC issues can be resolved with a little troubleshooting, others require the expertise of a professional. If your air conditioner is still not functioning properly after addressing these common issues, it’s time to call AC Repair Coral Springs professionals. They can diagnose and fix the underlying problems, ensuring your system is running efficiently and keeping you cool all summer long.

Remember, regular maintenance and timely repairs are key to extending the lifespan of your AC system and avoiding costly breakdowns. By staying proactive and knowing when to call in the experts, you can enjoy a comfortable, cool home even during the hottest days.