Removing Bad Smell from your Air Conditioner

Removing Bad Smell from your Air Conditioner

When you have been using your air conditioner unit for quite some time, you will be able to notice a bad smell coming out from the unit which means that it is time for you to do some cleaning on the unit. The information provided below should be able to help you remove any bad smell from your air conditioner system.

What you need to consider doing:

  1. Locate the source of bad smell
  2. Cleaning filters
  3. Cleaning drain pan
  4. Cleaning condensation drain line


  1. The first thing that you have to do is to locate the source of bad odor by checking all the items such as its filters, drain pan, drain lines, or the inside of the air conditioner. Sometimes a dead mouse, lizard or mold can also be the cause of the problem. Always remember to unplug the power supply before starting to do any cleaning exercise on the air conditioning unit.
  2. If it is the filter which is causing the problem then you need to clean it or purchase a new filter. Cleaning process include washing them with warm soapy water and bleach solution and then drying them. Also make sure there are no signs of mold or mildew on the filter.
  3. Other item to check is the air conditioner drain pan. This is because sometimes when old water has been sitting in the drain pan for a long period of time it can get moldy resulting to a really bad smell. The drain pan can be cleaned by using warm soapy water and dish detergent. Rinse the drain pan with diluted bleach or vinegar solution and make sure it is completely dry before installing it back to the air conditioner unit.
  4. Other parts that can be the cause of bad smell is the condensation drain line of the air conditioner unit. This can be resolved by flushing the condensation drain line using bleach and warm water. As for window units, you can use a pipe cleaner or even a toothbrush in order for you to clean the parts that you are able to reach.
  5. Wipe the entire air conditioning system for ensuring that no mold or any mildew residing inside or outside of the unit especially the air vents where mold or mildew are normally found.

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