During summer, you expect your air conditioner to keep your house cool. Your AC might be on, but what should you do if the air blowing out of your vents feels too hot?

Here, we will explain the most common reasons why this happens, and what you can do to fix it. If you need air conditioning repair in Scottsdale, our experts at Scottsdale HVAC Repair Pros can help.

  1. Your Thermostat is Set Incorrectly

Start by checking your fan setting. If the thermostat says that it is “on,” the fan will run even when the AC compressor is off. This is not a mechanical problem, although your energy costs will be higher if your fan runs constantly. By switching the setting to “auto,” the blower will only run when the compressor runs, and the air issuing from the vents will always blow cold.

  1. Your Filter Need to be Changed

Your HVAC air filter traps airborne particles that can damage your heating and cooling system. However, if it becomes too obstructed, it can reduce airflow by obstructing the inflow of warm supply air moving over the indoor evaporator coil. Whenever refrigerant moving through the coil gets too chilled, it freezes and stops the cooling cycle.

Replacing your filter monthly, or as advised by the manufacturer, solves this problem.

  1. Your Refrigerant is Low

Refrigerant is vital for air conditioning to work. Refrigerant transitions from a low-pressure gas to a high-pressure liquid as it loops between the indoor evaporator coil and outdoor condensing unit.

If there is not enough refrigerant in your system, your air conditioner will cool inefficiently. It will not generate enough cold air, and is another common cause of frozen evaporator coils. To diagnose and fix refrigerant problems, you will need help from an HVAC technician, like the ones from Scottsdale HVAC Repair Pros. Give us a call if you would like us to check your system for refrigerant issues.

  1. Your Condensing Unit Is Dirty and Needs to be Cleaned

The outdoor component of your AC unit is called a condenser. Basically, your condenser is a big heat sink that moves warm air from your residence outside. If the metal fins inside your condenser are covered with dirt, the condenser cannot operate as designed.

Rinsing down your condenser unit to eliminate accumulated lawn debris and trimming back vegetation to ensure that the condenser is unobstructed will improve its functionality.

  1. Your Condenser Fan or Your Compressor has Failed

While you are inspecting your condenser, verify that the big fan on the top is turning. If the fan motor has died, the condensing unit cannot dissipate heat as it was designed. You will notice that your air conditioner will start circulating muggy air throughout your home.

Listen to the sound of your compressor as it runs inside the condensing unit. Your compressor is the heart of your air conditioner. It is the device that cools the refrigerant so that it can collect more heat when the refrigerant circulates back into your residence. If your compressor fails, you will likely need to get a new system and plan for an air conditioning installation.

Are you hearing other strange noises when your air conditioner runs? Let us know what you are hearing. Our best service experts are here to support you. Give us a call at (480) 531-8624 or reach out to us to request an air conditioning repair appointment today.