Get guidance on recognizing caution signs and symptoms similar to uncommon noises or smells coming from an air conditioner; early detection

https://www.scribd.com/document/983545350/Air-Conditioner-Prices-Ontario-Ductwork-Costs-and-Options-161941

Get suggestions on spotting warning signs resembling strange noises or smells coming from an air conditioner; early detection ends in timely interventions stopping extra break down the road!