5 Reasons Why Your AC Won’t Cool the Whole House 

As summer approaches and the temperature rises, having an air conditioning system that can cool your entire house becomes necessary. Imagine coming home on a hot day, expecting a cool and comfortable environment, only to discover that your AC isn’t cooling the whole house. This frustrating situation can leave you feeling uncomfortable and annoyed. But worry not! We’re here to help you understand the reasons behind this issue and provide some solutions to keep your home cool and comfortable all summer long. This blog will discuss five common reasons why your AC won’t cool the entire house and how to address them.

1. Improperly Sized AC Unit

One of the primary reasons your AC might not be cooling the whole house is that it needs to be properly sized for your space. An undersized unit will need help to maintain the desired temperature throughout your home, while an oversized unit can lead to short cycling and increased energy consumption. To resolve this issue, consult an HVAC professional to help you determine the right size AC unit for your home.

2. Blocked or Leaking Air Ducts

Air ducts are responsible for distributing cool air throughout your home. If they are blocked or have leaks, your AC system will struggle to maintain the desired temperature in every room. Inspect your air ducts for any blockages or damage, and clean or repair them as needed. Having your ducts professionally inspected and expert air conditioning repair is always a good idea to ensure optimum performance.

3. Dirty Air Filter

A dirty air filter can significantly impact the efficiency of your air conditioning system. When the filter is clogged with dust and debris, the airflow becomes restricted, and your AC has to work harder to cool your home. This can lead to inadequate cooling and higher energy bills. To avoid this problem, regularly check and replace your air filter, ideally every 1-3 months, depending on usage and the type of filter.

4. Thermostat Issues

A malfunctioning thermostat could be why your AC isn’t cooling your entire home. Ensure that your thermostat is set correctly and functioning properly. If you have a programmable thermostat, double-check the settings to ensure they are accurate. If the problem persists, you may need to replace your thermostat or consult an HVAC professional for further diagnostics.

5. Insufficient Insulation

Proper insulation is crucial for maintaining a comfortable temperature in your home. If your home has insufficient insulation, the cool air produced by your AC system will escape, making it difficult for the system to cool the entire house. To address this issue, consider adding or upgrading the insulation in your home, especially in the attic and exterior walls.

If your AC isn’t cooling the whole house, there could be a variety of reasons behind it. Addressing these issues can help you achieve a cool and comfortable living environment, from improper sizing to blocked air ducts. Trust the experts at Elite Plumbing, Heating & Air Conditioning for professional AC Service. Our skilled technicians are ready to help you enjoy a cool and comfortable home all summer long.


Business Name – Elite Plumbing, Heating & Air Conditioning

Address:  3085 E Post Rd, Las Vegas, NV 89120, United States

Phone Number: 702-263-2665



July 2024