An aging compressor pulls more and more electricity every year. It is here that, every cycle, low pressure gas becomes high pressure gas.īeing such an important part of your central air conditioner, it requires the most electricity to run. Like a heart, it circulates the refrigerant around your HVAC system. Your Compressor Might Have Failed So Your Air Conditioner Blowing Hot Air. Without it, the coil’s cooling capabilities are hindered. Air is constantly flowing in and out, so the condenser needs 2 feet of “breathing room”. If you don’t want your AC blowing hot air, it’s important to keep the area around the condenser box clear of obstruction. Dirt, debris, critters, and even grass can find its way onto the exposed coil through the vents, or holes and cracks, and interfere with normal operation. Being exposed to the extremes in weather it can also sustain considerable damage. Your AC Not Blowing Cold Air As A Result Of Dirty Condenser Coil.īecause the box that covers the coil needs to transfer the heat outside, it is vented. To learn more about refrigerant leaks, click here. Your outdoor unit houses the other end of the coil, where the refrigerant arrives as a hot vapor and is released into the outdoor air. Your AC not blowing cold air as a result of dirty condenser coil. (For those of you living in Maryland, you can get AC help here). Call an HVAC technician to do a “leak search” to locate the leak, repair the hole and add the correct refrigerant into the evaporator coil to normalize the levels. It is simply sent back un-conditioned.ĭon’t try fixing the freon leak yourself. And once the coil has frozen over, your AC cannot extract the warmth from your home’s air. With low refrigerant levels, the chemical liquid in the coil expands, cooling it until it freezes.īecause your AC is a closed loop system, if your refrigerant is low, it is escaping the refrigerant line through a leak. We saw how the refrigerant, when put under pressure, gets hotter. If your air conditioning system seems intact and clean, your system might be low on refrigerant so you have a frozen evaporator coil So, Your Ac Blowing Warm Air Could Be Due To A Refrigerant Leak. If dirt has made its way into this area, you may have a defective filter or cracks/fissures in your air ducts. The evaporator coil is covered in a layer of grime and air cannot pass through. ![]() A less common scenario, your air duct has collapsed due to wear and tear, or bad installation, or pests, and air from the return vent cannot reach the coil.OR a household object is in the vent’s way and is blocking air flow, like a sofa or blanket. Dirt and debris are blocking warm air from entering the return vent. So, what prevents the presence of hot air around the coil?Īirflow is somehow being cutoff, which can mean one of several different things: Because of the chemical properties of the refrigerant, when heat is not absorbed into the coil for a certain amount of time, it freezes.
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