Outdoor unit

Abstract

An outdoor unit of an air conditioner includes a casing having an opening for maintenance, and a substrate disposed in the casing. The substrate includes a first surface on which an electric component is disposed, and a second surface facing the opening. The substrate includes a light transmitting region in which light is transmitted from the first surface toward the second surface when the second surface is viewed from a front, and a first light source provided on the first surface. The first light source is a surface mount LED that emits light toward the light transmitting region.

Dependencies are inferred from the claim text.