Central Pneumatic 2HP will not build air

by Bruce Bennett
(Wayne, WV.)

I have a Central Pneumatic 2HP, 115 PSI 8 Gallon tank. When I turn it on, it won't build up any air. Is there any thing I can do other than replace the switch ?

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Well Bruce, changing your pressure switch will not typically resolve the compressor problem you are experiencing.

The pressure switch turns the compressor on and off based on the tank pressure.

The compressor pump is what actually pulls air in and drives it down into the the tank to build pressure. And, from the sounds of it, your pump has problems.

Please see the troubleshooting section on the sitemap page for pages that explain why air compressors seem to run fine, but don't build any pressure.

Cheers.

Bill

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May 09, 2013
Compressor Pump
by: Bruce Bennett

Is it all that hard to fix the pump on my CP compressor, model # 95386, 2HP, 8 Gallon ?
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First you need to diagnose the reason that you Central Pneumatic compressor will not build air.

See the page relating to that on the sitemap under troubleshooting.

Then, when you have determined the cause(s) of the problem, the availability and cost of the repair kits needed, your skill level and time available, will give you a better idea if repairing is a better option than replacing.

B.

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#90221 2hp.-4gallon how to wire back together

by Josh mckee
(Tacoma,wa.)

Wiring back together,I broke the top of my compressor and disconnected all the wires.now I'm not sure how to wire back together,anyone familiar with this?please help.black,green,and white are coming from the power cord,and the same coming from the motor.thank you
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Both sets of wires go to the pressure switch.

If this were my compressor I would expect that the power supply wires go to the tabs / bolts / plugs on the switch that say line, and the motor wires attach to the motor / load tabs, bolts or plugs.

Typically the black and white wires are the hot wires, green goes to the ground tab on the switch.

If you are not comfortable doing this, I suggest you take your compressor to a shop.

I am not an electrician and cannot give electrical advice.

Bill


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Jun 23, 2013
Pressure Switch Wiring
by: Bruce Bennett

If it is anything like my CP compressor. the White wire goes to the top screws on both sides and the Black to the bottom, both sides then there is a place for the Ground wire which goes under a square U shaped clip. If you are looking at the compressor head on, the line side would be on your right, the motor on the left !

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Model 94355 air leak on cyl head?

by Ron
(Austin)

Harbor Freight # 94355 8 gal oiless compressor

Air leak on cyl head. Not from gasket. Looks like small hole in center of the top of the head
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Ron, you must have removed the plastic shroud to get to the head?

I am looking at the manual and I don't see where you might have a leak.

Air is not bleeding out of the pressure switch at the rear, is it?

I'm wondering if the hole you refer to is the intake port? If air is huffing out that hole as the compressor is running, then you have a failing or failed intake valve.

Could you start a new thread and upload a photo showing where this hole is?

Thanks,

Bill

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campbell hausfeld fp209501 low pressure

by BH
(jacksonville AR)

campbell hausfeld fp209501 only pumps to 40psi and won't go any higher twin tank
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Howdy BH.

I'm going to assume that the compressor gets to 40 PSI and continues to run, but the pressure doesn't go higher...yes?

Or, is it that the pressure gets to 40 PSI and the compressor shuts off?

Assuming it is the former, please visit the troubleshooting section and find the link to the page about just this compressor problem.

When you have done the checks, if you wish, add a comment here with more details or about a specific problem you found.

Cheers,

Bill

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Aug 31, 2014
where to buy parts model 95386
by: Anonymous

need to purchase a reed valve assembly for central pneumatic model 95386

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