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Air compressor not building pressure

Air compressor turned over on its side while running and now it runs, but will not build pressure.

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  • Corey McConnell
    Corey McConnell May 11, 2010

    When if fell over did something maybe break off and is allowing the air to leak out. Run the unit and see if you can tell if there is an air leak anywhere.

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  • 226 Answers

YOU MAY HAVE BROKEN OR CRACKED A FEED LINE REMOVE THE COVER LET IT RUN ,CHECK FOR LEAKS

Posted on May 23, 2009

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Motor turns and pump pully does not. burning up belt.


Air Compressor Trouble-Shooting, Problems, The Causes ...

www.portlandcompressor.com/compressor/trouble-shooting.aspx
Provided below is a general list of common air compressor problems, and a few quick ... Loose pulley, flywheel, belt, belt guard, cooler, clamps or accessories. ... Piston rings installed up-side down. ... Receiver does not hold pressure when compressor is unloaded. ... Turn on power, check fuse, breaker, or motor overload.

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Supercharge your Air Compressor for 20 bucks or less - Sawmill ...

www.sawmillcreek.org > ... > General Woodworking and Power Tools

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I have a 27 gallon belt driven Sanborn (Coleman) compressor and I have been ... I'mnot suggesting they won't compress air or give good service. .... Most any small oil-less compressor will serve a nailor, pump up the snow tires ... A two stagecompressor pumps 20 to 30% more CFM per motor HP thanks to ...

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The problem with compressors not building pressure is usually a bad pressure switch or bad regulator. Does the motor shut off at 20psi or does it continue running and not build pressure? If the motor continues to run with no increase in pressure, the you should go over the machine looking for air leaks from your regulator back all the way to the motor. Any air leak while the compressor is running can cause the pressure to "peak" way before the intended shutoff that it is regulated to.

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1 Answer

Pressure in the tank only builds to 30 psi


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Your problem falls into one of two categories the first is the tank is leaking the second is the compressor is leaking. Try this run the compressor for a minute or two and turn it off if to hear a hiss the tapers off slowly your tank is leaking some were check the drain on the bottom of the tank, the pressure relief valve on the top or side of the tank and all other connections between the compressor and tank.

In the event there is no hiss this means the problem is the compressor you may have a bad reed valve or a bad check valve depending on the type of compressor.

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1 Answer

Compressor runs hot and won't build pressure


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