by Kimz


Last Updated on

If you have an air cooler, you know that they are a great way to keep cool during the hot summer months. But what you might not know is that air coolers can sometimes emit an unpleasant smell. Many people have experienced this problem, and it can be quite frustrating. There are a few different reasons why your swamp coolers might smell bad, and in this blog post, we’ll explore some of the most common causes. We’ll also provide some tips on how to eliminate the bad smell and keep your air cooler smelling fresh.

Swamp Cooler Smells Like Rotten Eggs

Air coolers can smell like rotten eggs for a few reasons. The first possibility is that the water in the cooler has chloramine or other organic materials in it. This can happen if the water supply is not properly filtered.

The second possibility is that there is bacteria or mold growing in the cooler. This can happen if the swamp cooler is not cleaned regularly. The third possibility is that the cooler is overheating an electrical component. This can happen if the cooler is not properly ventilated.

Another reason why your air cooler may smell like rotten eggs is because of an overheating electrical component. If your cooler has an overheating motor or other electrical components, it can cause the cooler to smell bad. You should unplug the cooler and allow it to cool down before using it again.

If an air cooler does start to smell like rotten eggs, there are a few things that can be done. The first is to empty the water from the cooler and refill it with fresh, filtered water. The second is to clean the cooler thoroughly, using a vinegar solution to kill any bacteria or mold. The third is to check the cooler for proper ventilation and make sure that it is not overheating. You may need to replace the swamp cooler pads. The pads in the cooler can become saturated with water and start to grow mold or mildew. If this happens, you should replace the pads as soon as possible.

The best way to prevent an air cooler from smelling like rotten eggs is to make sure that the water in the cooler is properly filtered. This will remove any chloramine or other organic materials that could cause the smell. Additionally, the cooler should be cleaned regularly to prevent bacteria or mold from growing. Lastly, the cooler should be properly ventilated to prevent overheating.

Swamp Cooler has a Fishy Smell

When your swamp cooler smells like fish it can be caused by a few different things. The first possibility is that there is bacteria or mold growing in the cooler. This can happen if the cooler is not cleaned regularly. The second possibility is that the air intake for the cooler is located near a fishy-smelling area, such as a garbage can or sewer. The third possibility is that an electrical component in the cooler is overheating, which can cause a fishy smell. If your air cooler smells like fish, the first thing you should do is clean it. This can be done by using mild soap and water. If the problem persists, you may need to replace the air cooler pads. The pads are what the cool air blows through and can become moldy or full of bacteria over time.

You can also try adding essential oils to the water in your air cooler. This can help to mask the fishy smell. Some good essential oils to use include lavender, lemon, and eucalyptus. You can also try adding a small amount of vinegar to the water. This can help to kill any bacteria that may be causing the fishy smell.

To get rid of the fishy smell, you will need to clean the air cooler to remove the bacteria and mold. First, empty the water reservoir and scrub it with a mixture of bleach and water. Then, rinse the reservoir thoroughly and dry it completely.

Next, clean the air cooler pads. Soak the pads in a solution of bleach and water, then rinse them thoroughly. Finally, dry the pads completely before putting them back in the air cooler.

Once you have cleaned the air cooler, you should notice a significant reduction in the fishy smell. If the smell persists, it is likely due to an underlying problem, such as a foul air intake or an overheating electrical component.

How Often Should Swamp Cooler Pads Be Replaced?

Air cooler pads should be replaced every 3-6 months, depending on the type of air cooler and the amount of use it gets. If you live in a dusty area, you may need to replace the pads more frequently. Pads can become clogged with dust and dirt, which can reduce the efficiency of the air cooler and cause it to smell bad. To clean the pads, simply remove them and rinse them off with a garden hose. You can also soak them in a solution of 1 part bleach to 10 parts water for 30 minutes, then rinse well.

How Can You Make Swamp Coolers Water Smell Better?

If your swamp cooler has started to smell bad, there are a few things you can do to try and improve the situation. First, you should clean the air cooler according to the manufacturer’s instructions. This will remove any build-up of dirt and grime that could be causing the bad smell.

You can also try adding a water treatment product to the cooler’s water. These products are designed to kill bacteria and other microorganisms that can cause bad smells. Follow the product’s instructions carefully to ensure that you are using it correctly.

If the bad smell persists, you may need to replace the air cooler’s pads. The pads can become saturated with water and start to harbor mold and mildew. Replacing the pads is a fairly easy process and should solve the problem.

Finally, if the cooler is still smelling bad, the problem may be with the swamp cooler itself and not the water. In this case, you may need to contact the manufacturer for assistance.

How To Clean A Swamp Cooler

If your swamp cooler has begun to emit a foul smell, it is likely due to a build-up of dirt, bacteria, and mold. Luckily, this is an easy problem to solve with a little regular cleaning. Below is a step-by-step guide on how to clean an air cooler and remove that bad smell.

1. Unplug the air cooler from the power outlet and remove any water that is inside.

2. Take out the filter and wash it with soap and water. If the filter is very dirty, you may need to replace it.

3. Clean the inside of the air cooler with a solution of water and vinegar.

4. Rinse the air cooler thoroughly with clean water.

5. Dry the air cooler completely before using it again.

By following these simple steps, you can easily clean your air cooler and eliminate that unpleasant smell.

Can You Put Essential Oil In Swamp Coolers?

You can put essential oil in a swamp cooler, but you need to be careful about the type of oil you use. Some oils can damage the cooler, so it’s important to read the manufacturer’s instructions before adding anything to the water.

If you do decide to add essential oil to your air cooler, start with a small amount. A few drops should be enough to make the water smell better. You can always add more if you want a stronger scent.

Be aware that essential oils can evaporate quickly, so you may need to add them more often than you would if you were using a diffuser. You might also want to add a little bit of glycerin or other carrier oil to help the essential oils last longer.

If you’re using a swamp cooler that doesn’t have a water reservoir, you can put the essential oil on a cloth or paper towel and place it near the fan. This will help disperse the scent throughout the room.


If your swamp cooler has started to smell bad, there are a few possible explanations. The most common cause is bacteria or mold growing in the water. This can be remedied by cleaning the cooler and changing the water regularly. If the fishy odor is coming from the air intake, you may need to clean the filter or vents. Finally, if the smell is coming from an overheating electrical component, you should have the cooler serviced by a professional.

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