What should be done with HVAC systems when mold is suspected?

When mold is suspected in HVAC systems, inspecting and cleaning them is essential to ensure the safety and health of the occupants as well as to maintain the efficiency of the system. Mold can thrive in the damp and warm environment that HVAC systems often create. If left untreated, mold spores can spread throughout the building, circulating through the system and potentially leading to respiratory issues and other health concerns for those within the space.

A thorough inspection allows for identifying any visible mold growth or conditions that may promote mold, such as moisture accumulation. Cleaning involves not only removing mold but also addressing the source of moisture that allows mold to flourish. Regular maintenance and prompt action at the first sign of mold are crucial components of effective mold management in HVAC systems, helping to prevent further contamination and protect indoor air quality.

The other options do not adequately address the issue. Painting over mold does not eliminate it and can actually trap moisture, leading to further problems. Leaving the system unattended allows mold to grow unchecked, exacerbating the problem. Replacing units might be a solution in severe cases but is often unnecessary and not cost-effective if proper inspection and cleaning can resolve the issue. Thus, inspecting and cleaning is the most appropriate and effective response to mold concerns in HVAC systems.