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

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Ec12 hitachi air compressor will not build pressure higher than 40psi

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Most likely the the reed valves are stuck or miss aligned. Worse case senerio your piston seal blew causing this not to build pressure. Read manual on how to disassemble head. to remove should be 4 bolts and your copper line, just be careful of the reed valve plates, they are thin steel that sit into the head. Put back the same way you took it apart.

Posted on Mar 02, 2009

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