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Charge air pro model ir330e20 builds pressure to only 60 psi and will not stop running

3.3 hp charge air pro model ir330e20 will only build pressure to 60 psi and just keeps running, how can this be fixed ?

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  • 407 Answers

Cbillgreene:

Your compressor is leaking air somewhere between the compressor head and the tank. With the compressor running, feel carefully around the ends of the tube that leads from the compressor head to the air tank. You will probably feel some air leaking around one end or the other. If so... remove the tube and find out which packing has failed.

Posted on Mar 16, 2013

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Posted on Jan 02, 2017

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SOURCE: lack of pressure

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?
Thanks.
Kia

Posted on Nov 25, 2008

  • 1 Answer

SOURCE: compressor will not build pressure

compressor will not build pressure

Posted on Feb 28, 2009

  • 1 Answer

SOURCE: EC-12 runs but only builds to 35 psi and continues to run

so i came to this web site for help. where is the help? are we troubleshooting? come on man! what is this? my compressor runs and runs but does'nt build up pressure. it aint the pressure gauge, dummy. its is a problem with some kind of valve that is supposed to kick on- or off when the pressure gets low enough. problem is which valve and how to fix it! and to the guy whose compressor hums, dont use more than 25 ft of cord, and use the correct size cord and the correct power source.

Posted on May 04, 2009

  • 5603 Answers

SOURCE: My craftsman air compressor model 919 16737 1.1 hp

Probably the check valve has failed. It apparently is where the pipe goes into the tank from the compressor.

Posted on Aug 24, 2009

  • 885 Answers

SOURCE: My four-year old PC pancake compressor starts fine

First take off the head on the air pump and check the reed valves on the valve plate. If they got hot and warped or cracked they'll work to a point then no more pressure can be built up. Next check the pistion ring and cylinder wall. If either is damaged you'll only get so much pressure build-up then it will leak past the piston.

Posted on Mar 07, 2011

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1 Answer

My 60 gallon kolbalt was running and stop when it filled now it wont go o ever with the tank drain it spins free it does nothing no sounds either


When you say it does nothing do you mean the motor wont come on or the motor comes on and it wont build pressure? if the motor comes on, there are several possibilities:
1. The unloader valve is stuck open
2. The valves in the head are bad
3. The flywheel is loose
If the motor wont come on, the pressure switch is bad (which holds the unloader valve open)
http://www.mastertoolrepair.com/air-compressor-parts-vt6362-p-60727.html

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My four-year old PC pancake compressor starts fine but only builds up 60 psi no matter how I adjust the pressure regulator. The compressor motor runs continuously. I checked for air leaks and can't find...


First take off the head on the air pump and check the reed valves on the valve plate. If they got hot and warped or cracked they'll work to a point then no more pressure can be built up. Next check the pistion ring and cylinder wall. If either is damaged you'll only get so much pressure build-up then it will leak past the piston.

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My compressor will not go over 20 psi i have a craftsman 921 4 gal 125 psi compressor and it will not build past 20 psi i do not know how to get to the pistons and stuff what do i do?


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.

Mar 01, 2011 | Craftsman 3 gal. Air Compressor, 1.5 hp,...

1 Answer

Will not build up pressure


worn out pump on the compressor, or leak in tank.

Jul 05, 2010 | Craftsman 1 Hp, 4 Gal. Air Compressor

1 Answer

Pressure in the tank only builds to 30 psi


Bad check valve. But I would check the regulator, by turning it down to about 10 PSI and running it and see if it builds again, if that works then it is the check valve. But from what you are saying I would replace the check valve anyways.

Jun 05, 2010 | Craftsman 3 gal. Air Compressor, 1.5 hp,...

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I Have a 5.5.hp oilfree air compressor that builds air up to 45 lbs an stops building pressure and keeps run.will not shut off


Is you air regulator working? I suspect your reed valves in the head need replacing as they may not be holding pressure over the 45psi that you mentioned, and are allowing the air pressure to defeat them which allows the psi over 45 psi to bleed back into the air compressor cylinder.

Oct 29, 2009 | Air Tools & Compressors

1 Answer

Compressor not building pressure and continues to run


Unplug it and listen for air leak. What pressure does the manual tell you it should run to? The safety release could be bleeding air, listen for that, with it off. Make sure it is designed for more than 60 PSI by manufacture.

If you need further help, I’m available over the phone at https://www.6ya.com/expert/craig_3fa289bf857b1a3c

Jul 20, 2009 | Craftsman 3 gal. Air Compressor, 1.5 hp,...

4 Answers

Lack of pressure


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?
Thanks.
Kia

Oct 25, 2008 | Craftsman 3 gal. Air Compressor, 1.5 hp,...

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