What is hiding inside your air conditioner?

An air conditioner can look clean from the outside while dust and buildup collect inside. The filter catches larger particles, but smaller particles can reach the cooling coil, blower, and drain components.

How Buildup Affects Your AC

The indoor coil becomes cold during cooling, and moisture condenses on its surface. When dust and moisture accumulate, mold may grow on affected surfaces and unpleasant odors may develop.

Buildup can also restrict airflow and interfere with drainage. Regular inspection and cleaning help keep the equipment in good working condition and reveal problems that are easy to miss from the outside.

Health Considerations

Mold exposure can cause irritation or worsen symptoms in some people, particularly those with mold allergies or asthma. Effects vary, and an AC inspection cannot diagnose a health condition. If you have symptoms, consult a healthcare professional.

Ordinary home split and window air conditioners should not be confused with water-based cooling towers. According to the CDC, home air conditioners are not a risk for Legionella growth because they do not use water to cool the air.

Cleaning and Maintenance

Cleaning should follow the equipment and cleaning-product instructions, with electrical components protected and moisture problems addressed. The service needed depends on the condition and accessibility of the unit.

AEL&L provides professional AC cleaning, inspection, and maintenance throughout Guam. We clean accessible components, check drainage and operation, and explain any further work the system needs.

For health information, see the CDC guidance on mold and Legionella.