Degradation diagnosis device and air-conditioning device

A degradation diagnosis device that diagnoses whether or not a compressor is abnormal, the degradation diagnosis device comprising:

• a current detector configured to detect electric current and output electric-current information being information of a power current supplied to the compressor;
• a vibration detector configured to detect vibration of the compressor and output vibration information being information of the vibration of the compressor every set measurement period;
• an arithmetic unit connected with the current detector and the vibration detector and configured to diagnose whether or not the compressor is abnormal using the electric-current information inputted by the current detector and the vibration information inputted by the vibration detector;
• and
• a notification unit configured to give notification about a result of diagnosis as to whether or not the compressor is abnormal,
• wherein the arithmetic unit
• sets vibration measuring frequency according to rotation speed of the compressor, the rotation speed of the compressor being detected based on electric current of the compressor, the vibration measuring frequency being correlated with a measurement period for detecting vibration by the vibration detector to output the vibration information, and obtained by dividing or multiplying a clock frequency serving as a reference.