Porter Cable C2002 150 Psi 6 Gal Compressor Logo
Posted on Dec 23, 2010
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The compressor runs but doesn't build up pressure, the relief valve is closed.

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  • Anonymous Dec 23, 2010

    Is this a brand-new compressor? I just answered a question the other day about this same model, right out of the box with the same problem. You say the relief valve is closed, I assume you mean the drain valve. Anyway, the answer was you have a bad unit and should take it back. If this is a new problem on a previously working compressor, then one of several thing have failed. Ask again with more info and I may be able to help.

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Repair Ahjoshe

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  • Porter Cable Master 885 Answers
  • Posted on Dec 23, 2010
Repair Ahjoshe
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If your relief valve is working properly the next two usual failures on this compressor are the piston seal or the valve plate. Remove the cylinder head and check the valve plate. If even one of the reed valves is chipped, bent or otherwise compromised, the compressor won't build pressure. The replacement part for the valve plate is part number NO17592 and should be available at or can be ordered at most Dewalt/Porter Cable repair centers. Next check the seal on top of the piston. If it's compromised, same effect. Unfortunately you can't buy just the seal, you have to buy the connecting rod kit, part number KK-4964.

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Jun 30, 2010 • Porter Cable C2002 150 Psi 6 Gal...
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another thing is the gas being relieve to your relief valve, your condenser fan could not be running there by creating a high head pressure to relieve on the relief valve or the valve could be open already and not the type where it seats back if the pressure is already low.

are you just putting gas right now as these things happens?

if so, you could have a clogged in your system, building a high head pressure to relieve in the valve.

the clogged could be in the filter dryer, or the expansion valve inside the evaporator coil.

tnx 4 using fixya,


drcool
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