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

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Were is the reset button for the hitachi EC 12 compresor?

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  • Hitachi Master
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As you may have noticed, there is no reset button listed in the parts breakdown. If you have been experiencing unexpected shut-down when the unit is hot you probably have one of the ec12s with a thermal protector incorporated with-in the winding of the motor. To prevent shutdown do not use extension cord or power your compressor with a generator. Test your unit with an amp meter to make sure that it is working with specifications. If you have other questions please post again. Good luck

Posted on Aug 27, 2010

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1 Answer

Where is the restart button on a ec12 hitachi compresor


I have seen two locations over the years including incorporated within the field coils. If not under the shroud mounted to metal frame, it is located on the shroud very visible. If yours is not visible , then most likely in windings. This internal reset will cut out on high heat , then reconnect after cool down. Can't rush cool down. Motor will overheat on low power / long or too thin power cord. If reset does not cut back in, then reset probably burned-out. It is not ment to be replaced but not impossible. The motor can be taken apart and reset removed and breaker installed on shroud. Good luck

Oct 16, 2015 | Hitachi Air Tools & Compressors

1 Answer

Compresor will not start under pressure


I have the same compressor with the same problem. I have temporarily eliminated the thermal reset with a piece of 12 gauge hard wire and it runs just fine. However it's not adviseable to run without the thermal reset for an extended time. I tested the draw at 15.5 amps and the reset was a 17 amp. I am told by someone with superior electrical background, that I need to install a 20 amp thermal reset in it's place. I have found that mine runs best when plugged directly into a 20 amp circuit with no extention cord. But, when using an extention cord, I have a 10 guage cord that will carry the load needed to run the EC12. I also have changed to 100% synthetic oil.

Jul 23, 2011 | Hitachi EC12 Portable Electric 2hp Air...

1 Answer

Model ec 510 just won't start. Can't find the reset button, unit is only 4 months old


I just looked a the owners manual, did not see a reset, try taking the plastic cover off and see it the motor has a button on it to reset the motor, the motor may be damaged also, always try to use a direct connection to the wall outlet for power, Hitachi air compressors dont like extension cords.

Mar 08, 2011 | Hitachi Air Tools & Compressors

2 Answers

What type oil does the Hitachi EC 12 use? Ray


SAE 5W50 and if available use full synthetic.

This link will take you to the EC12 owners manual if you would like.

http://www.hitachipowertools.com/product/files/pneumatics/compressors/EC12__OM.pdf

Oct 28, 2010 | Hitachi EC12 Portable Electric 2hp Air...

1 Answer

I need wiring diagram for EC-12 preasure switch email address: mresnak@hotmail.com THANX


Just hook the black (gnd) wire to one screw and the white (signal) wire to the other. You should crimp ring connectors on the end of the wires for a good connection. The red (+5v) wire is unused.


http://www.toolpartsdirect.com/cgi-bin/schematic.cgi/hitachi/EC12

Aug 12, 2010 | Hitachi Air Tools & Compressors

1 Answer

Hitachi EC 12 Air Compressor does not keep pressure


to repair this problem (a) the pressure switch is not working,(b) check valve or non return valve sticking(stripe down repair and refit)

Sep 28, 2009 | Hitachi EC12 Portable Electric 2hp Air...

2 Answers

HITACHI AIR COMPRESSOR


what type of air compressor you have,since when you maintained it

Sep 23, 2009 | Hitachi EC12 Portable Electric 2hp Air...

1 Answer

Air tank leaks along the weld


NO,NOT FOR MINE,REMOVE TANK FILL WITH WATER AND TAKE TO A WELDING SHOP.THATIS THE BEST AND SAFEST WAY

Jul 27, 2009 | Hitachi EC12 Portable Electric 2hp Air...

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