A management apparatus for managing an air-conditioning apparatus, the management apparatus including a memory to store data, and managing an operation of an air-conditioning apparatus including at least one indoor unit and an outdoor unit, the management apparatus comprising: remaining memory capacity acquisition means to acquire a remaining memory capacity of the memory; memory leak determination means to determine whether or not a memory leak is present in the memory based on the remaining memory capacity acquired by the remaining memory capacity acquisition means; characterised in that the management apparatus also comprises: usage limit estimation means to estimate, when the memory leak determination means determines that the memory leak is present, a usage limit period being a length of time to a point when the memory reaches a preset usage limit threshold; a schedule table storing an operation schedule of the air-conditioning apparatus and the management apparatus; schedule management means to search the schedule table for an all-stop period in which operations of all of the at least one indoor unit are stopped within the usage limit period estimated by the usage limit estimation means, and set a restart schedule for restarting the management apparatus in the schedule table in accordance with the all-stop period searched out; and equipment control means to restart the management apparatus according to the restart schedule set in the schedule table by the schedule management means. remaining memory capacity acquisition means to acquire a remaining memory capacity of the memory; memory leak determination means to determine whether or not a memory leak is present in the memory based on the remaining memory capacity acquired by the remaining memory capacity acquisition means; characterised in that the management apparatus also comprises: usage limit estimation means to estimate, when the memory leak determination means determines that the memory leak is present, a usage limit period being a length of time to a point when the memory reaches a preset usage limit threshold; a schedule table storing an operation schedule of the air-conditioning apparatus and the management apparatus; schedule management means to search the schedule table for an all-stop period in which operations of all of the at least one indoor unit are stopped within the usage limit period estimated by the usage limit estimation means, and set a restart schedule for restarting the management apparatus in the schedule table in accordance with the all-stop period searched out; and equipment control means to restart the management apparatus according to the restart schedule set in the schedule table by the schedule management means. usage limit estimation means to estimate, when the memory leak determination means determines that the memory leak is present, a usage limit period being a length of time to a point when the memory reaches a preset usage limit threshold; a schedule table storing an operation schedule of the air-conditioning apparatus and the management apparatus; schedule management means to search the schedule table for an all-stop period in which operations of all of the at least one indoor unit are stopped within the usage limit period estimated by the usage limit estimation means, and set a restart schedule for restarting the management apparatus in the schedule table in accordance with the all-stop period searched out; and equipment control means to restart the management apparatus according to the restart schedule set in the schedule table by the schedule management means.