Get advice on recognizing caution signals including unexpected noises or smells coming from an air conditioner; early detection

https://raymondidxp992.theburnward.com/understanding-seer-ratings-and-their-importance-when-buying-an-ac-3

Get assistance on spotting warning signs equivalent to unexpected noises or smells coming from an air conditioner; early detection leads to timely interventions stopping further wreck down the road!