Indoor unit for air-conditioning apparatus

An indoor unit for an air-conditioning apparatus, the indoor unit comprising:

• a wire fastening structure configured to fasten a wire, the wire fastening structure including a wire attachment part on which a part of the wire is placed, a wire retainer configured to retain the part of the wire placed on the wire attachment per, a wall part provided on one lateral side of the wire attachment part, and having a plurality of opening ports each configured to receive a protrusion part formed at one end of the wire retainer, a plurality of boss parts provided on an other lateral side of the wire attachment part, and having heights different from each other, the wire retainer having an other end to be fastened to any one of the plurality of boss parts, and a fastener configured to fasten the wire retainer to the one of the plurality of boss parts.