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Imagine waking up one day in a pool of sweat due to the sweltering heat coming from seemingly everywhere. You get up from your bed, walk on over to where your AC unit remote, and then press the power button to turn it on. To your dismay, you aren’t greeted with the full blast of refreshingly cool air that you expected to encounter when you turned your air conditioner on. No matter how many times you turn it on and off, your AC unit blows warm air into the room. Worse, it doesn’t blow in any air at all. A few seconds later, you realize that something might be wrong with your unit.

In spite of purchasing it as an investment for your comfort, AC units are not as indestructible as their owners hoped they would be when making the hefty downpayment for it. At times, your air conditioning unit has the potential to break down for no reason, putting an abrupt end to the comfort that you look forward into your home and swapping it with uncomfortably high internal temperatures. While calling your local AC expert or HVAC contractor might seem like the best thing to do, you might find yourself at a point in time where you definitely have to troubleshoot things on your own.

3 common reasons behind air conditioner systems that don’t cool
If your air conditioning system isn’t working the way it’s supposed to, here are a few reasons behind the sudden malfunction that might surprise you:

1. Your air filter might be filled with dirt
While AC system ownership seems like it costs most in terms of ownership than other types of appliances, the small adjustments and maintenance procedures that you carry out can actually make a huge difference in the overall functionality of your aircon unit. If your AC isn’t cooling the house properly, then chances are that you have forgotten to clean the air filter after overlooking the need to clean them out at least once a month. Assuming normal use, AC system filters can fill up with dust, dirt, small items, and other types of debris, resulting in a clog that compromises your system’s functionality. You can fix cooling problems by changing or cleaning your air conditioning unit’s air filter if you can’t take the sustained periods of heat. However, if it’s within your budget, you can even invest in higher quality filters that don’t clog as quickly and facilitate air circulation better for improved cooling.

2. Your thermostat settings aren’t properly set
A lot of people assume the worst when their AC system decides to quit on them, but the truth is that the source of the problem might be much simpler than you would assume. Inefficient air conditioner performance and cooling abilities may be caused by high thermostat settings. If you have set your AC system at a high temperature, it isn’t going to keep you as cool as you’d like. It’s best to check the thermostat before making any other assumptions. Typically, thermostats are also configured with auto settings that allow you to set and forget, but at times they may completely reset and require you to configure your AC unit’s settings again.

3. Your air conditioning system itself might be dirtier than it could possibly handle
Aside from the air filter, the overall presence of dirt in your entire air conditioning system might be the root cause for the lack of cool air coming out. If your AC system uses an outdoor air conditioning unit, perhaps you have neglected its monthly cleaning. This is a simple mistake that can compromise your unit’s functionality. Certain factors, such as the refrigerant not being cool enough or shrubbery being too close to your outdoor air conditioning unit can cause your AC system to blow out hot air instead of the cold air that you yearn for as well.