Central Ac Unit Not Blowing Cold Air

It s the last thing you want on a sweltering summer s day a central air conditioning system that s not blowing cold air.

Central ac unit not blowing cold air.

While your first reaction may be to contact an hvac pro with a little of. The air conditioner s inside unit called an evaporator absorbs heat from your air and then transfers that heat to the outside unit called the condenser. If the outside unit s breaker has tripped the indoor unit will keep blowing air into your home it will just be warm. Try turning the dial down all the way or pushing the buttons to the lowest setting and see if that trips the unit to run.

The thermostat on the wall of your home is either battery powered or hard wired. Check your breaker box to see if the outdoor unit s breaker has tripped. Check the air filter and change it if it looks like the filter on the right. When the blades are covered with an excessive amount of dust or the blower motor is broken you will have issues with your system.

Surprisingly a frequent cause for an air conditioning system not blowing cold air is a broken thermostat. Here s how your ac cools your house. If the thermostat takes batteries changing them every year will keep the unit functioning normally in most cases. Hence your room will not be optimally chilled.

How to fix it. Here are some reasons why this could happen. It might also not be cooling if it s on the auto setting instead of on. If all looks good on the power front and your ac is still not blowing cold air it could be that the thermostat on your unit isn t set at an appropriate temperature.

This is the most common reason for a central ac not blowing cold air. If your thermostat is set a higher threshold it might not actually be turning on. When your air filter has dirt buildup on it the cold air won t be able to flow through. 2 check your air filter if the air coming out of the supply vents is weak and not very cool check to see if the air filter is dirty and change it if necessary.

If you are experiencing a decrease in airflow your ac blower might be to blame. If it trips again do not reset it. Located inside the air handler this fan is responsible for pushing the cold air through the ducts. Often the thermostat is the culprit behind an uncooperative air conditioner.

One of them is that your central ac may stop blowing cold air. Make sure the fan setting is set to auto not on which will cause your ac to blow air even if it s not being cooled.