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Cathy Sahakian Posted on Oct 03, 2015
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I have a 3 gal craftsman air compressor. Compressor runs but will not build more than 20 psi in tank reserve. Whats wrong?

3 gallon 1hp

1 Answer

txslim55

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  • Master 1,104 Answers
  • Posted on Oct 03, 2015
txslim55
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Joined: Nov 15, 2010
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If shuts down at 20 psi regulator is set wrong
it runs but only builds 20 psi, compressor is probably worn out

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Yes,but if the max is 125 you don't want to increase it above 110 and set off the pressure relief valve.
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My air compressor builds up to 40 psi and just keeps running, i have a craftsman 5 GAL, 1HP, 125 PSI and pressure goes up to 40 psi and dose not go any higher and on the other hand engine keeps running and dose not stop. Please advise?
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Kia
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