Get details on spotting caution signals similar to exotic noises or smells coming from an air conditioner; early detection

https://telegra.ph/Exploring-Smart-Thermostats-and-Their-Compatibility-with-Various-Units-11-12

Get data on recognizing caution signals similar to peculiar noises or smells coming from an air conditioner; early detection results in timely interventions combating additional wreck down the road!