Model# 92504 Builds pressure to 115 psi?

by Joe Hanson
(floresville TX USA)

Central Pneumatic model 92504 air compressor

Central Pneumatic model 92504 air compressor

Central Pneumatic Model# 92504 Builds pressure to 115 psi then check valve opens.


compressor run till manul turn off? been used less than 25hrs parts or discontinued. can it be fix?(jerryhanson123@wildblue.net)
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Joe, I'm not quite sure what you mean by the check valve opening? Typically the check valve is in the tube from the pump head where it connects to the air tank?

Please do me a favor. Read the pages on this site about check valves, unloader valves and PRV valves?

I doubt if it is the check valve that is your issue, and I need to know for sure what the problem is before I can offer some assistance.

I've uploaded what I believe to be an image of your Central Pneumatic 92504 air compressor for the interest of other visitors to this page.

Please provide more information about your compressor problem as a comment here.

Thanks,

Bill

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Jan 14, 2015
help
by: chuck

Bill,
I have the model 92504 central phnumatic unit 4 h.p. 29 gal.,is it 110 or 220 it came with out a pigtail ? the box on top says 220 volts ,60 hz, phase 1,rpm 3400,load is 12.5 amps
thx chuck

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Central pnuematic #92504 blows breaker?

by Tom
(grants pass, oregon 97527)

4 hp motor, 29 gallon, 115 psi. Blows breaker when trying to start.

I can spin the fly wheel a few times and reset braker (after 2 to 4 spins and resets) motor will take off.

Next time it goes to run it pops the breaker.
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Tom, if you are using an extension cord, try plugging the compressor directly into a wall socket to see if that makes a difference. If it does, you have solved the problem.

If the Central Pneumatic air compressor is plugged directly into a socket, ensure that nothing else is pulling power from that same circuit at the same time.

Problem persists??

If the problem persists, and I think it will, I suspect your start capacitor has a problem. There is a page on this site to explain how to test it.

Did this help or for any more compressor issues, please post a comment here.

Cheers,

Bill

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Apr 01, 2016
Crappy Parts
by: Chris H

I had nothing but trouble with mine since it was a year old. Had to spin it to start. Worked for a while, then slowly it would not start up without causing the circuit breaker to blow. Then the off loader valve wouldn't release pressure. Lastly, the red button to start and stop the compressor broke.

Replaced both capacitors, check valve, switch and copper fill tube from the compressor to the check valve. I had a local auto store make me a custom stainless braided hose to diesel tractor compressors.

This compressor was a piece of junk from the get go. Now it works like a champ with under $100 in new parts.

May 22, 2015
Need specs on Start capacitor, please
by: Edwin

I have the above compressor Central pneumatic #92504 with the same problem. I took the motor to a local shop and they found that the start capacitor was bad. However, the specs were worn off and they didn't know what to replace it with. If anyone can tell me the "Mfd" speck of your start capacitor I would appreciate it. On my motor it was the smaller of the two and was blue in color.

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Central Pneumatic model 38898 oil seal required?

by Jotge Rosario
(Puerto Rico)

Central Pneumatic 38898 air compressor (photo: www.aircompressorpartsonline.com)

Central Pneumatic 38898 air compressor (photo: www.aircompressorpartsonline.com)

I need a oil seal of the Pancake Compresor Central Pneumatic model 38898
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Bill says...

Jotge, if you bought it at Harbor Freight, ask them where they get their compressors fixed when they are still under warranty. That's the place to go.

It would sure help if you have the manual and the parts list to identify the part you need.

One source may be (and also the source for the photo of the CP 38898 photo) is: www.aircompressorpartsonline.com

Failing that, if you have the seal, any auto parts stores around that might have comparable seals?

Good luck.

Bill

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Oct 23, 2013
On/Off Switch
by: roman

Switch broke off. Need to get part number to get replacementswitch

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