[Object] Provided is such an indoor unit for an air-conditioning apparatus that an electrical component unit arranged in front of a heat exchanger is not exposed under a state in which a front designed panel is opened, and that a service engineer is allowed to easily perform inspection work and repair work on the electrical component unit. [Solution] The indoor unit for an air-conditioning apparatus includes: a fan (1); a heat exchanger (2b) located on a front side of the indoor unit with respect to the fan (1) and on an upstream side with respect to the fan; an electrical component unit (30) arranged in front of the heat exchanger (2b) in a horizontally long posture; a front designed panel (16) located on a foremost side of the indoor unit in an openable and closeable manner; and an electrical component cover (20) removably mounted to members forming a casing of the indoor unit, the electrical component cover (20) including: a lower cover plate (21) for covering a lower side of the electrical component unit (30); and a front cover plate (22) for covering a front side of the electrical component unit (30). The front cover plate (22) is exposed when the front designed panel (16) is opened.
