Air compressor

An air compressor, comprising:

• a compressor body;
• a motor for driving the compressor body;
• an air cooler that cools air compressed by the compressor body;
• an oil cooler for cooling the motor and the compressor body;
• an enclosure housing the compressor body, the motor, the air cooler and the oil cooler;
• wherein the enclosure includes:
• a cooler intake for intaking an external air for cooling the air cooler and the oil cooler, and
• a motor cooler intake for intaking an external air for cooling the motor;
• wherein the air compressor further comprises,
• a cooler duct for separating, a cooler cooling path which cools the air cooler and the oil cooler by air drawn from the cooler air intake, and a motor cooling path which cools the motor by air drawn from the motor cooler intake,
• wherein the cooler duct has an opening merging the cooler cooling path and the motor cooling path,
• wherein the air compressor further comprises:
• a cooling air exhaust port for exhausting the merged air at the opening from the cooler cooling path and the motor cooling path;
• a first sensor for detecting a temperature of a load side bearing of the motor,
• a second sensor for detecting a temperature of an anti-load side bearing of the motor, and
• a controller for calculating a temperature difference between the first sensor and the second sensor, and determining that the air cooler or the motor cooler is clogged if the temperature difference is less than a threshold value.