Air Conditioner

When I ran the air conditioner today the air had a musty smell. It worked fine a couple of weeks ago. I cleaned the filter inside where else do I need to look and do?

Thanks
Dave

There may have been a little moisture in the fins and passages. Where there is moisture mold and mildew will grow. Try shooting some lysol or similair mold/mildew killers into the intake on low fan and shut off the unit for a few hours.