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7 Common Reasons Why Your Air Conditioner Is Not Cooling Properly

1. Dirty cooling coils. Your air conditioner has a set of indoor coils that absorb heat from your workplace air, as well as a set of outdoor coils that transfer heat from your workplace to the outdoors. If either of these coils have a layer of dirt on them it becomes much more difficult for heat to transfer between the coils and the air that’s blown over them. This can greatly reduce your system’s ability to remove heat from your workplace and the air that comes out of your vents will be warmer than it should be.

2. Refrigerant leak. Refrigerant is what flows through your air conditioner coils and actually moves the heat from inside your workplace to the outside condenser unit. If your system has a refrigerant leak it will not be able to adequately move heat out of your workplace. Your air conditioner will run, but will not provide optimal comfort.

3. Blocked condenser unit. Condenser units are located outside, where they can be blocked by all kinds of unsuspected problematic things. If your condenser unit is obstructed, it will not be able to adequately release heat from the condenser coils. This means that the heat that is removed from your system will not be released properly.

4. Dirty air filter. When your air filter is dirty, the amount of air that is able to blow over your evaporator coils is restricted. When this happens, much of the warm air that your air conditioner pulls from your workplace’s air will not actually be cooled.

5. Compressor problems. Your air conditioner’s compressor is responsible for making sure the refrigerant is at optimal pressure, making it one of the most important parts of your unit. Without it, your system would not be able to absorb heat from the rooms in your workplace and transfer it outside. If it starts to malfunction, your air conditioner has no chance of cooling your workplace properly.

6. Old system. When an air conditioner reaches the end of its operating life it will not be able to cool your workplace like it used to. This is just a natural fact of an air conditioner’s lifespan, which is why it’s important to replace your system when it is no longer able to perform effectively.

7. Improper thermostat settings. If your thermostat’s fan setting is set to “on” your air handler will blow air even when your system isn’t in a cooling cycle. As a result, some of the air that comes out of your vents will feel warm. You can adjust this by switching the fan setting to “auto” instead. Another setting to check is whether your system is in “heat” or “cool” mode. Your air conditioner will only be turned on if your thermostat is set to “cool.”

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