You are currently viewing What Causes My AC to Blower Hot Air?

What Causes My AC to Blower Hot Air?

What should you do if the air conditioner in your house suddenly stops cooling the space and begins to blow hot air? Continue reading to learn about what factors might result in air conditioners producing warm air and how this problem can be fixed.

The reason why the Air Conditioner is blowing hot air

While the fan is running, something prevents the cooling mechanism from working correctly, which is why your air conditioner blows warm air. You may be able to adjust the thermostat or ensure enough air circulation if there are a number of potential causes. In contrast, others may be more complex, such as faults with the electrical system or leaks in the refrigerant.

We’ll start with the specific concerns you can solve on your own, and we’ll let you know when you need the expertise of a trained professional to diagnose and resolve a more significant issue.

Problems with the Temperature Control

The first item on our to-do list is relatively straightforward: ensure that your thermostat’s temperature is set to cool. Next, ensure the fan’s setting is on AUTO and not ON. In this manner, the ceiling fan will not turn on until there is already a supply of cold air ready to be blown into your house. And last, make sure the temperature is at the correct setting before you start cooking!

If this does not solve the problem, the problem is most likely a mechanical one along the closed loop system of your air conditioner. You can find several potential explanations for why your thermostat is malfunctioning here.

Improper working of the AC Filter

One of the most prevalent issues that might hinder the performance of your air conditioner’s cooling function is a reduction in the amount of airflow. For your air conditioner to work effectively, it requires a constant flow of warm air over the coils, which may seem like a strange need at first. However, the filter in your air conditioner is intended to remove dust and other particles and impurities from the air circulating through the appliance.

On the other hand, if the air filter is blocked with dust and other debris, it may prevent any air from entering the system. When this occurs, the coils are unable to dissipate the heat. Therefore, the fan in your system merely pushes heat back into the room it’s in.

Low Refrigerant Level

If you notice that your air conditioner is emitting warm air, the refrigerant levels in the device may be too low. It is often a sign that your system leaks the refrigerant! Such a scenario will not affect the operation of your air conditioner. It will continue to expel warm air while it works to achieve the temperature you have selected on the thermostat.

Final Words

We observed that the refrigerant temperature increased when the pressure increased. When there is not enough refrigerant, the chemical liquid in the coil will expand, causing it to cool down to the point where it would freeze.

Your air conditioner is a closed loop system; thus, if the refrigerant level is low, it means that some of it leaks out of the pipe that carries it. And after the coil has frozen solid, your air conditioner will be unable to remove the warmth from the air inside your house. It is just returned to us without being conditioned in any way.

Read More: Water Heater Repair: When to Do It Yourself and When to Hire a Professional

Leave a Reply