Why Air conditioner not cooling

Air conditioner not cooling? I had this problem too, and I found that it’s usually something straightforward that can’t be fixed by just calling the repairman. This blog post will show you how to check if your AC is just broken or something that you can set yourself for a lot less money.

The first thing you need to do is check if your AC is turned on. Sometimes people forget to turn it on or turn it off without realizing it. To check, go to your thermostat and see if the fan is blowing. If the fan is blowing, the next step is to check the air filters.

Why Air conditioner not cooling

If you have a dirty air filter, it can impact how your AC works. You should replace your air filter every 3-6 months, depending on how often you use your AC depending on the type of air filter you have. If you don’t replace your air filter, it will get dirty and clogged, which will make your AC work less efficiently. To return your air filter, you can go to your local hardware store and buy a replacement, or you can go online and buy one.

If the fan is blowing and the air filters are clean, the next step is to check the outside unit. Ensure that there isn’t any dirt or leaves blocking the team and that the condenser coils are clean. If the waves are dirty, you can clean them with a garden hose.

If the outside unit is clean and the air filters are dirty, the next step is to check the inside team. Ensure that the unit is clean and that there isn’t any dust or dirt blocking the air vents. You can either clean it yourself or call a professional to do it for you if there is.

If you’ve checked all of these things and your AC is still not cooling correctly, it may be time to call a professional to come and take a look.

The most important thing to remember is that if your AC is not cooling, it’s not necessarily the fault of the AC unit. Many things can go wrong, and it’s important to troubleshoot the problem before you call a professional.


We hope that this guide was helpful and that you now understand why your AC unit may not be cooling properly. If you’ve checked all of the items on this list and your AC is still not cooling, please call a professional to come and take a look.

Frequently Asked Questions (FAQs)

Why is My AC Running But Not Cooling?

One common reason your air conditioning system may be running constantly is a clogged air filter. This impedes airflow and prevents it from effectively removing moisture from the air. The result is a home that feels much warmer than usual and an inefficient AC system. If you suspect this is the case, replace or clean the filter. Contact a professional HVAC technician to diagnose and repair the problem if all else fails.
The thermostat is another possible cause. The thermostat controls the temperature inside your home and should be set to the lowest temperature possible. You can reset it by turning the dial to the lowest setting or pushing the buttons to the lowest ground. Also, make sure that the thermostat batteries are not dead. If they are, replace them. If the air conditioner is still running but not cooling, it may be faulty wiring. Lastly, the fan may be defective.
Check the air filter. If it is dirty, the air conditioner will not work properly. If the filter is dirty, it will not draw sufficient air in. Check the filter regularly, and replace it if necessary. Then, check the thermostat to see if it is connected to the AC. If it is, use a Pro-Tech to know if it is connected and if it provides diagnostic information.

How Do I Fix My Air Conditioner That is Not Cooling?

Your AC might be not cooling properly because of a few reasons. One of them is that the thermostat is set to heat rather than cool. If this is the case, try resetting the thermostat. If the problem persists, the compressor fan is likely not working properly. Another common reason for your AC not cooling properly is a leak in the refrigerant lines. This could also lead to a hissing sound from the unit and frozen coils. Ensure that the drain lines are clean and that the team is not getting any power from the outside.
In addition to dirty coils, it is necessary to check the refrigerant levels. Low levels can cause poor performance and lower energy efficiency. Additionally, a faulty compressor can damage the system’s components. To fix a leaking refrigerant, you should remove all bushes and debris from around the condenser. It would help if you also cleaned the coil to remove any dirt or debris accumulated inside. You can find the refrigerant levels by visiting a local furnace dealer or appliance store. If you are not familiar with a particular brand or model, you can search for the unit’s nameplate online.
Another common reason why an air conditioner does not cool is dirty. If your condenser is full of dirt, the air cannot flow to the evaporator coil. This can lead to the freezing of the evaporator coil. Change your air condenser filter frequently if you live in an area with many pets. Moreover, check the thermostat settings to ensure that it is cool.

Why is my AC unit not cooling?

A: Several reasons why your AC unit may not be cooling properly. It’s important to troubleshoot the problem before you call a professional.

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