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Help! My AC Is Running but Not Cooling My House!

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If you can tell your air conditioner is on, you have every right to expect to feel the cool air it should be providing. But what if you don’t? You might need AC repair. Several issues can cause an air conditioner to make noises as though it’s running properly without actually cooling your home. We’ll explain the possibilities.

Your Air Filter Is Clogged

This is a best-case scenario, in which you don’t need AC repair at all. Simply check your air filter. If it’s caked with a thick blanket of dust and particles, swap it out for a new one, or wash and dry your filter if it’s reusable. Does this do the trick? Do you have plenty of cool air coming out of your vents now? Fantastic! Make sure to do this monthly during the summer.

Your Outdoor Unit Is Dirty

The heat the refrigerant carries from your home needs to dissipate while the refrigerant flows through the outdoor unit, so it will be cold enough to soak up more heat when it gets back inside. Dirt, lawn clippings, last fall’s leaves, or encroaching plants can insulate the coils so the heat is not able to dissipate. Rake and trim everything away, and wash down the unit, using only gentle hose pressure.

Your Indoor Unit Is Icy

A buildup of ice might seem cold, but just like the mess on the outdoor unit, ice on the indoor unit can actually act as insulation. In this case, it’s preventing the refrigerant from absorbing the heat while it’s inside your home. This ice can develop because of a fan or motor problem or a refrigerant leak, which will require repair, or because of a clogged air filter, which you can check yourself.

Your Ductwork Is Leaky

Even if the air conditioner is generating plenty of cold air, it could still fail to make it out of your vents. Damage or deterioration can cause your ductwork to leak, allowing your cooled air to seep out into places where it’s not needed, like in your attic. Minor damage can easily be repaired by a qualified HVAC technician, while widespread leaks might necessitate duct replacement.

Your Refrigerant Is Low

An air conditioner doesn’t use up refrigerant. It simply cycles it through a closed loop. But if a coil is damaged, refrigerant may leak out, causing the system to be unable to cool effectively. Other indicators are hissing or bubbling sounds, a sweet chemical smell, or the ice mentioned above. The coil can be sealed by a technician and the refrigerant can be topped back up. 

If you notice your AC running but not cooling in Lansing, MI, check on the air filter and outdoor unit first. If cleaning those doesn’t resolve your problem, one of these other issues is likely to be the root cause. Get qualified help right away to prevent sky-high electric bills or further damage to your AC system.

Contact A-1 Mechanical Heating & Cooling for AC repair in Lansing, MI. Comfort and Character You Can Depend On.

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