When you go to turn on your air conditioner, you expect nice cool air to be coming out. Although most air conditioners are very reliable, the fact is that there may be a time when warm rather than cool air begins to pour out. This, of course, can be both concerning and frustrating for most homeowners, especially if it’s during the hot summer months. So, does this mean you need to throw out your unit and go buy another one? Not exactly. Fortunately, replacing your unit is not always required. Read on to learn a few of the reasons why your a/c unit is throwing warm air and troubleshoot the issue.
Make Sure Your Thermostat is Correct
One of the most common reasons for an a/c unit blowing out warm air is simply because the thermostat is set to that particular setting. If you live with a large family, someone may have accidentally changed the settings on your unit. For example, a common feature found on most units is “fan mode.” If both the temperature is low and fan mode is on, that would lead to the warm air that you are experiencing. Your a/c unit must be on both a low temperature and on “cool mode” to properly cool your home.
Your Air Filter Needs to be Changed ASAP
Another possible reason why your a/c unit is suddenly producing warm air is that it’s working too hard. When an a/c unit is working harder than it should, it is often due to a dirty air filter. Fortunately, this is an extremely easy issue to correct. All you have to do is locate the air filter on your unit and remove it. Now, if you have a complicated a/c unit or are working with a home HVAC system, you may want to search “ac repair near me” to have a professional come and locate the exact location of the filter for you. However, if you do find it, the next step is to clean it. Wash the filter with a bit of soap and water to remove all the dirt and grime that has accumulated over time. If this was indeed the reason for the warm air, your unit should be good as new.
Frozen Evaporator Coils
In some cases, simply cleaning your air filter will not be enough to fix the issue. This is because if an air filter goes unclean for longer than it should, the evaporator coils within the unit will have frozen over. Now, frozen over may sound like a good thing, but it’s not. When these coils are frozen, they will impede the flow of cool air thus causing nothing but warm air to come out of the unit. At this point, you may need to turn off your unit completely to allow the coils to thaw out. If this does not fix the issue and the coils continue to freeze even after cleaning the filter, you will need to contact a professional HVAC system professional as there may be a much more complicated issue with the unit.
Having a malfunctioning a/c unit is never fun, especially during those long hot summer afternoons. We hope that the information above has shown you how to get your a/c unit working once again. However, if issues persist, it is highly recommended that you contact an HVAC repair company as soon as possible.