Air conditioner

An air conditioner that includes an indoor device including inside a casing an electrical-component box having electrical components accommodated therein, an indoor-device heat exchanger, and an indoor-device fan to deliver air to the indoor-device heat exchanger, the air conditioner comprising:

• a temperature measurement device to measure a temperature of the indoor-device heat exchanger;
• a processor;
• and
• a memory to store a program which, when executed by the processor, performs processes of:
• determining an upper limit of a rotational speed of the indoor-device fan on a basis of a temperature of the indoor-device heat exchanger measured by the temperature measurement device, and executing control to operate the indoor-device fan at a rotational speed equal to or slower than the determined upper limit so as to limit an air temperature within the electrical-component box to a temperature equal to or lower than a rated temperature of the electrical components, wherein
• when a temperature of the indoor-device heat exchanger is equal to or higher than a predetermined temperature threshold, the processor determines the upper limit to be a predetermined first upper limit, and
• when a temperature of the indoor-device heat exchanger is lower than the temperature threshold, the processor determines the upper limit to be a predetermined second upper limit that is faster than the first upper limit.