Question about Porter Cable 18 - Gauge Brad Nailer and Compressor Combo Kit

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Compressor won,t build more than 40 psi. porter cable, model cffn 251 t

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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  • 1383 Answers

SOURCE: compressor runs and runs but only builds 40lbs pressure

At the web address below you will find a parts list of your compressor. The most likely problem areas are the tube seal and the piston/cylinder. The tube seal seals the discharge tube to the head of the compressor. It will fail over time and cause the problem that you have. (only costs a few dollars) The other problem that you could have is a worn cylinder. Your compressor is oil free thus the piston ring is made of silicone vinyl and wears depending on conditions at the job site. Heavy dust/ dirt will shorten the life of the unit. With unit unpluged and covers removed, push the piston to top of stroke and examine upper portion of cylinder. If you see groves/scratches install cylinder kit. (cost around 39 dollars) In most cases I would replace both the seal and cyl kit. These parts are also available at your local dewalt service center or on line at dewalt.com. The folks at dewalt are very helpfull. Good luck with your repair and email if you have more questions.


http://www.ereplacementparts.com/porter-cable-cpfac2040p-type-pancake-compressor-parts-c-129_1662_2199.html

Posted on Mar 26, 2009

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mxtras
  • 194 Answers

SOURCE: I have a Porter Cable pancake air compressor CFFN

There is a check valve where the line goes into the tank. The purpose of this valve is to keep air from coming out of the input line. This valve is likely the culprit and it is leaking out of the unloader. The unloader is actuated by the electrical switch when the compressor shuts off, and it relieves the pressure on the line so that the pump is not under load when it tries to start.

Posted on Feb 02, 2010

  • 553 Answers

SOURCE: Air Leak From Pump Head on Porter Cable C2001 Pancake Compressor

The real question is where exactly is the leak coming from. Compressors have a pressure release valve designed to let the pressure off of the compressor motor so it can start when there is pressure in the tank. This valve is often the culprit and fairly easy to replace. You can order it direct from porter-cable online. Just in case double check the drain petcock sometimes these get worn and won't close completely and can easily be over looked when trouble shooting.

Posted on Jun 12, 2010

  • 36 Answers

SOURCE: My Porter cable CFFN250b-2 pancake 6 gal 135 PSI

head gaskit blown

Posted on Jul 30, 2010

  • 176 Answers

SOURCE: porter cable 135 psi 6 Gal model no. d27420

These units are disposable so if the motor is gone, it is garbage. I would try a power tool repair center to see if they have any used motors to repair your unit. Save the tank and use it as a slave unit for a new compressor. This way you will have more volume and the compressor will run less overall making the new unit last longer. If you burnt the motor out on this one, consider buying a larger unit the next time. Hope this helps.

Posted on Mar 21, 2011

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1 Answer

Porter Cable 150 psi 6 gal compressor tank builds up to 150 psi but 'regulated air' stays at zero and, of course, no air out. Thanks


The attached link provides a work around,
There are repair kits available. Dissemble and make sure that you document the assembly for reassembly. Common problem.

Hope this helps.
Fixing Porter Cable C2002 Regulator

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Why my air compressor want shut off after building up pressure


If it is building up to the full rated pressure and there are no air leaks in the hoses then it is most likely the pressure switch. It is item 111 in this parts diagram.

Porter Cable C2002 diagram

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1 Answer

Compressor will only build up 60 PSI. What is wrong?


Diafram cracked/ split a little if piston type rings shot.

Feb 27, 2011 | Porter Cable C2002 150 Psi 6 Gal...

1 Answer

Trouble building pressure


I would check the reed valves in the pump. One of them may be broken.

Jul 09, 2010 | Porter Cable C2002 150 Psi 6 Gal...

1 Answer

I have a Porter Cable pancake air compressor CFFN 250N manufactured in 2004 that has an air leak. Pressure can only get to 80 PSI. Checked all the connections and found no leaks. Finally took the cover...


There is a check valve where the line goes into the tank. The purpose of this valve is to keep air from coming out of the input line. This valve is likely the culprit and it is leaking out of the unloader. The unloader is actuated by the electrical switch when the compressor shuts off, and it relieves the pressure on the line so that the pump is not under load when it tries to start.

Feb 02, 2010 | Air Tools & Compressors

1 Answer

Porter-cable compressor stops and restarts at about 60psi


You prolly have a leaky gasket in the main valve. Air is leaking and causeing it not to go about 60psi, you probably have it set to reach a high PSI but since the leak is not allowing it reach above 60 it keeps cycling trying to get above it

Aug 27, 2009 | Porter Cable C2002 Wk 150 Psi 6 Gal. Oil...

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