Question about Hitachi EC12 Portable Electric 2hp Air Compressor, Oil Lubricated

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Hitachi EC12 won't refill air after initial startup

When I initially start up my EC12 compressor it fills up just fine based on the PSI I set. When it senses it needs to start back up I here a humming sound and then it usually trips the breaker. I checked the oil and it seems fine, but just wondering what else it might be. I have an opportunity to buy a used DeWalt compressor, but I would rather fix mine if possible

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Hi there,
of course comparative cost buying and repairing make a cost reduction.if your compressor run smooth but tripping,make sure where on the right path of diagnosing of your compressor,we can check if the motor or compressor is shutting off the unit.disconnect the belt from pulley of the motor to compressor,run the motor if still tripping w/o load its better if you have calmp ammeter test,to check the current rating,if it is tripping motor is deffective replace the bearing.f motor is fine sr till tripping check the compressor also the crankcase bearing,replace worn out bearing.have a nice day dont forget to fix my rate.thanks a lot.

Posted on May 08, 2010

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Posted on Jan 02, 2017

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