The model and serial number is located on the product's rating plate. The most common location for the tag is at the rear of the unit. Other locations include:
Window and Built-In Air Conditioners
- Facing the unit, on the right side near the front.
Portable Air Conditioners
- On the rear of the unit.
Ductless (split air) Air Conditioners
- Underside of the access door on indoor wall unit.