Modern homeowners have come to rely on their air conditioners to maintain a cool and constant temperature inside the home during the hot summer months. It can be easy to take the services provided by an air conditioner for granted, but homeowners sit up and take notice when their air conditioner stops working properly.

Discovering that your air conditioner has suddenly started to blow out hot air can be disheartening. Being able to quickly identify the cause of the malfunction and address the problem through reliable repairs will help you avoid any discomfort in your home during the summer months.

Here are three reasons why your air conditioner might be blowing hot air, and some simple things that you can do to address these problems.

1. Broken Thermostat

If you find that your air conditioner has suddenly started to blow out hot air instead of cold, the issue may not be with your air conditioning unit at all. The thermostat plays a critical role in determining how well your home's HVAC system functions.

Once you set your preferred temperature using the thermostat, this important piece of equipment relays information to the air conditioner unit, telling it to produce more cooled air in order to lower your home's indoor air temperature or to stop producing cooled air in order to allow the indoor air temperature to climb.

If your thermostat is malfunctioning, your air conditioner could start blowing out heated air. An experienced HVAC repair technician will be able to examine your home's thermostat to determine if it is malfunctioning and, if needed, replace it to prevent your air conditioner from blowing out hot air in the future.

2. Restricted Airflow

Your air conditioning unit needs access to a constant supply of air in order to generate the cooled air that circulates through your home. When your air conditioner suddenly starts blowing out hot air, it could be the result of restricted airflow.

There are several reasons why the air flowing into your air conditioning unit could become restricted, but the most common is a clogged air filter. You can remove the air filter from your air conditioner and hold it up to a light source to check if air can flow properly through the filter.

If you can see light shining through the filter, then air can move freely through it. If you cannot see light coming through, the filter needs to be replaced. You can consult an experienced HVAC technician for advice when determining how often your air filter needs to be changed, or you can have the technician change the filter regularly for you as part of your service agreement.

3. Faulty Compressor

Your air conditioning unit relies on a compressor to generate the cooled air that circulates throughout your home on a daily basis. When this compressor begins to malfunction, your air conditioner could start to blow out hot air.

There are many different things that could go wrong with your air conditioner's compressor. Electrical relays can become damaged, causing the compressor to lose power.

Refrigerant levels can drop, preventing the compressor from circulating the refrigerant through your air conditioner to cool off air prior to sending it through your home's ducts.

The compressor can even overheat when it is forced to work too hard because the air conditioner's filter is dirty.

A compressor that isn't functioning properly must be repaired by an experienced HVAC technician to prevent the faulty compressor from causing irreparable damage within your home's air conditioner.

If your air conditioner suddenly starts blowing hot air, contact the experienced professionals at Air Time Heating & Cooling for help identifying the cause and repairing any problems.