Mild and mildew in the AC system can be a major concern. Not only does it smell musty and unpleasant, but it can lead to respiratory issues or allergy troubles. Further, mold and mildew can build up on filters and other AC system components, which can result in damage. The following guide can help you determine whether there is mold in your AC system, as well as provide you with strategies to get rid of it.

Signs of mold in the AC system

For most people, the first sign that there is mold is a musty, damp odor that is mildly unpleasant. You may also have allergy symptoms, such as respiratory difficulties, irritated eyes, or a stuffy nose. Often, you will notice that the symptoms worsen when the AC fan is blowing or when you are sitting near an air vent. In extreme cases, you may even find mold beginning to form outside of the system. For example, mold or mildew may begin to form on the carpeting or wall around vents. This is because the spores are coming from the vents and landing on these surfaces.

Causes of mold growth

Moisture is the main cause of mold growth. Condensation is a common issue with an AC system, particularly if filters are clogged or if there are gaps in the duct system. In some cases, the moisture comes from the surrounding air. This is typically the case, if you live in a humid climate, a rainy area, or if you are located near a large body of water.

Methods for removing mold

How you remove the mold depends on where it is growing. Generally, the first place to check are the filters. Removing and replacing the filters may handle most issues, if the mold isn't severe. You should also vacuum out the filter housing so any spores are removed. If humidity or air moisture is the culprit, then you should consider the addition of a dehumidifier. There are models that connect directly into your AC system, which allow you to dehumidify the whole house. This will generally cut down on moisture such that mold cannot grow. If the cause is condensation or mold in the duct work, then you may need more extensive service. Often, this means having your ducts inspected and repaired, if necessary, followed by a full duct cleaning. Your technician may also fully clean out your unit so that there will be no more spores in circulation.

As you can see, most mold issues can be handled quickly and easily, without any need for major repairs. Contact an air conditioning installation and maintenance service, for more help.