Many people don’t realize that their air conditioner is overheating until it’s too late. The last thing you want to do is find out your AC has been running all day, and the unit is working overtime to cool down a room that was never hot in the first place!

To avoid this from happening, we’re going to talk about the information provided by Top Air Cond Services on what causes an air conditioner to overheat and how you can prevent it from happening again.

Dirty Air Filters 

Dirty air filters are a major cause of overheating. When your AC unit is working hard to cool the air, it pulls in dirty and dry air from outside through your filter.

This filthy air creates heat within the unit as it’s being circulated through its system. If you have an older model, this could also be because the fan blades may have accumulated dirt or debris that has collected on them over time–this will not allow enough airflow for proper cooling inside the home.

Replace both filters regularly so they’re clean and free of any contaminants lying around on top!

By doing this, you can make sure that your conditioning system doesn’t overheat, which can help stop a lot of other expensive damages to your home.

Now that you know what causes an air conditioner to overheat and how to prevent it from happening again, make sure you take care of those filters!

Low AC Refrigerant Levels

If your air conditioning unit is running continuously and the temperature of the room isn’t cooling down, it could be that you’re experiencing low refrigerant levels.

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This causes high pressure inside the unit because it’s trying to cool a hot space without enough liquid to do so. The overworked system will cause those electrical components like compressors, condensers, and evaporators–to break down quickly!

To fix this problem before any major damage happens: have someone check your AC for leaks or uncharged units with a leak detector.

If this problem isn’t solved, it could lead to overheating because of high pressure.

Dirty Conditioner Condenser Coils

If your air conditioner is working extra hard to cool and it seems like overheating, then you might have dirty coils on the condenser.

This causes high temperatures because of a build-up of grease that has accumulated over time or could be due to an accumulation from when water droplets get in.

If this happens, there will either be black spots on them–or if they’re completely clean but still aren’t cooling properly, then more than likely some dirt got stuck inside those tight spaces!

To fix these: ensure that any plants around are far enough for leaves don’t fall onto the unit itself–and also make sure nothing sits too close to stop airflow (like furniture).

Clean off all greasy and dusty materials and use a coil cleaner to spray into the air conditioning unit.

If all of these steps are followed, your AC will no longer overheat!

Not Having Your AC Unit Regularly Serviced 

If your AC unit is running all day and the temperature still isn’t cooling, you’re at risk for overheat!

This can be because either your system’s been too long without a regular service or it could also mean that other issues are contributing to overheating.

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It might seem like this won’t happen–but if your air conditioner hasn’t had any attention in a while, then it will have accumulated dirt that has collected on its components.

This makes an even higher chance of high pressure inside the unit from run time with little liquid left to pull through these parts.

To avoid this problem: make sure to get an annual maintenance checkup as often as possible! That way you can ensure that no leaks exist and that all parts are in working order.

Now with a clean and well-running air conditioning unit, you can get back to the coolness of your home–without worrying about it overheating!


It’s important to know the basics of your air conditioner so you can fix some simple problems before they become serious such as overheating. You should be able to find a solution in our guide, but if not, we’re always here for you!

We are passionate about helping people understand their A/C units better as well as help you out when you encounter issues.

If you have questions that aren’t covered by our guide, feel free to shoot us an email or give us a call any time!