AC Running But Not Cooling? Know The Reason

As the summer progresses, homeowners prepare to combat the elements with the help of their air conditioners. Is your residential air conditioner malfunctioning? Your HVAC system could be blowing hot or lukewarm air. Not every AC repair issue is expensive to resolve. Knowing what’s wrong with your air conditioner will help you figure out how to avoid similar problems in the future.

Why Isn't The AC Cooling The House?

Examine The Condenser

An outside coil wraps around the condenser on the outside of this unit. If your air conditioner isn’t cooling even when turned on, you may have a clogged or obstructed coil. Unfortunately, a wide variety of things, including grass, mud, and other impurities, can find their way into this equipment. This can cause a major clog, which can cause the system to blow warm air instead of cold air.

Solution: Check the condenser for debris and clean it out. Use a vacuum or a hose to wipe away dirt and grime gently. Call a professional for an air conditioning tune-up in Palmdale if the problem persists.

Check The Thermostat

Check your thermostat first if your HVAC system is functioning but not cooling. First and foremost, ensure that this is set to cool. If your air conditioner was recently serviced, something could have been changed by accident.

Solution: Set the AC thermostat to AUTO. Keeping it ON is a common cause of your air conditioner not cooling.

Check The Air Filter

If the AC filter is dirty or clogged with dust and grime, it might prevent the thermostat from working correctly. The movement inside the ducts is blocked by dirt in the AC filters.

Solution: Check the air filter; however, ensure your system is turned off before proceeding. Remove the filter and examine it. Clean it and put it again.

Refrigerant is Low or Leaking

The lack or insufficiency of a refrigerant, which absorbs heat from the surrounding air, may result in your air conditioner not cooling. To avoid this problem, get your air conditioning serviced regularly.

Solution: Signs of this problem include hissing or bubbling noises and a buildup of ice on the outside unit. Once you’ve found the issue, contact an expert for an air conditioning tune-up in Lancaster.

Leaky Ducts

Frozen Evaporator Coil

Humidity and heat are removed from the air as warm air travels through this coil, and much cooler, conditioned air is delivered back into your home. However, this coil can occasionally freeze, resulting in AC not providing cold air.

Solution: Unfortunately, repairing a frozen evaporator can be difficult. You need to contact a licensed and skilled HVAC specialist to resolve the problem.

A leak in your air ducts might cause a snag in distributing conditioned air throughout your home. Because the AC duct is located in the attic, some warm air may enter your ductwork, causing a spike in indoor temperatures.

Solution: Signs of this problem include hissing or bubbling noises and ice buildup on the outside unit. Once you’ve found the issue, contact an expert for an air conditioning tune-up in Palmdale.


Employ an AC service and repair professional from DAC Heating and Air if it seems too time-consuming to accomplish independently. Contact us at 661-449-1527 or drop us a mail here to know more about air conditioning service in Palmdale.