Get counsel on recognizing caution indicators which include special noises or smells coming from an air conditioner; early detection

https://www.mediafire.com/file/k01t75zy0fip9k9/pdf-47751-19074.pdf/file

Get hints on recognizing caution indicators similar to unfamiliar noises or smells coming from an air conditioner; early detection ends in well timed interventions combating additional hurt down the street!