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Anonymous Posted on Dec 15, 2010

I got one of your compressors off a friend that had not used the unit in years, it say in his garage and collected dust. So I changed the plug and wires, got a new outlet in my garage for a 230 line and plugged it in. It ran great and filled the tank to115 psi (its max) then shut off, I used it a bit to test and it turned back on to fill and then shut off. It now wont start or run, and I'm confused as to what it could be.

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John Trevino

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  • Puma Master 1,420 Answers
  • Posted on Dec 15, 2010
John Trevino
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With pressure in tank test for leak at the check valve. Follow the discharge line from the pump to the tank. There you will find the checkvalve (usually brass valve). If the check valve leaks the compressor will be under load when motor tries to start and will probably trip breaker. Look for reset button (red button )on the compressor motor and push-in to reset. With pressure in tank the motor /pump should turn freely by hand. If checkvalve good and unit turns freely, test capacitor for proper valve. It should test to within 95% of printed uf/mfd. Good holidays

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