Gas compressor

A gas compressor comprising:

• a compressor body that compresses gas;
• a drive source that drives the compressor body;
• a discharged-gas temperature sensor that is disposed on a compressed-gas pipe and detects a discharged-gas temperature of the compressor body;
• a display unit;
• and a controller that is configured to process the detected result from the discharge-gas temperature sensor and cause the display unit to display information according to the processing, wherein the controller is configured to store in advance a plurality of preset range with respect to a rate of change of the discharged-gas temperature and a plurality of items of information about at least either causes of changes in the discharged-gas temperature or dealing methods of dealing with the causes, according to the plurality of present ranges, calculate a rate of change of the discharged-gas temperature on a basis of the detected result from the discharged-gas temperature sensor, determine which predetermined set range the calculated rate of change of the discharged-gas temperature falls in, wherein the predetermined set range is associated with a predicted cause of an abnormality, set a sequence of the preset ranges in the order closer to the calculated rate of change in the discharged-gas temperature and cause the display unit to display a list of corresponding items of information about at least either corresponding causes or dealing methods of dealing with the causes when the calculated rate of change of the discharged-gas temperature is determined as falling any one of in the preset ranges, and dynamically display the abnormality and the predicted cause thereof.