Frozen AC Unit. 4 Reasons Why Your Air Conditioner Is Blowing Lukewarm Air . The best way to prevent the problem of an AC blowing warm air is to schedule annual air conditioner tune-ups from Hydes. When the system is not calling for cooling, the air that is circulated can feel warm coming out of … But all you have to work with are the symptoms. Contact your local AC repair company and explain the issue to them. But hold the phone. But what about the outdoor unit — the condenser? is changing the fan from “auto” to “on”, which causes the fan to blow air when the system isn’t running. 1. Home AC Blowing Warm Air Intermittently. So far, so good. The duration for which cold air will be produced from the supply air outlets depends on the programmable set point of the temperature controller. No home air conditioning system is designed to constantly blow cold air without intermittently recycling return air from within the conditioned space. Before calling an AC repair company, here are 5 common causes to help narrow your focus and point you in a cool direction. 7 Reasons Your Heater Blows Cold Air/AC Blows Hot Air. There are many reasons an HVAC (heating, ventilation, air conditioning) system might stop working. The Thermostat Is On the Wrong Settings. If its power has gone out, the system won’t cool the air it blows out. During your tune-up we’ll measure your refrigerant levels, clean your coils and check to ensure that all of your system’s parts are working properly. If your AC is blowing warm air, the first thing you should check … Your AC could be blowing warm air for a lot of reasons. But don’t worry just yet, we’ve got your back. There are many different reasons why your AC is blowing warm air and sure, it can get kind of complicated. Yes, freeze solid inside into a block of ice. To many homeowners’ surprise, air conditioners can actually freeze. So, without us looking at your air conditioner, there’s really no way for us to know exactly what’s causing your AC to blow warm air. Truth is, there are a ton of different variables that lead to warm air blowing out of your air conditioner. Dont panic. As your AC system blows warm air from your home over the coils, the refrigerant in the coils absorbs heat from the air, thereby making the air cooler. Here are some of the most common reasons why your AC is blowing warm air and what to do next. 6 Reasons Your AC Is Blowing Warm Air. Why tell this story? An AC blowing warm air shows you that your indoor air handler unit is on, and the power supply is functional. Now that’s a reason to sweat. If the evaporator coil goes too long without maintenance, it can become caked with dust and unable to absorb heat as effectively. Noticing your AC blowing warm air? In fact, this is the most common cause of air conditioners to blow warm or hot air. 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