My air compressor wont build to 120 psi. - where to get parts

by J.R. ARBIZO
(Winkelman, Arizona)

It wont build up to 120 psi. So I know its because the seal or gasket on the piston is bad. I looked at it and it looks pinched. Where can I order the piston gasket or seal and is it a kit? I also need an on/off switch. Where can I order these parts? I need this air compressor bad but I want to fix it right so it last me quite a while.

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Parts supply for Kobalt air compressors is always a problem, as Lowes stocks so few.

Talk to your local store, ask them who does the warranty repair on their air compressors (hopefully a local shop) and talk to those folks about parts.

That, and posting here, which you now have done.

Bill

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kobalt VLK1382209 - no sound at all, power is getting to the pressure switch

by Jeff Burnette
(marion, nc)

Kobalt air compressor from Lowes

Kobalt air compressor from Lowes

hi,i have a kobalt VLK1382209. it's a 22 gallon tank with a digital readout for the pressure (and i assume to control the motor as well) tank pressure is zero, i have opened the valve on bottom of the tank and no air comes out, and when i connect the power and press the power button, nothing happens. no sound at all. motor turns freely by hand, but is either not being turned on by the pressure switch, or the motor is bad possibly. my cousin and i tried to bypass the switch briefly just to see if the motor would start that way, and still nothing. any suggestions that might cost less than buying a new pump and motor (that's gonna be a bit pricy) or a new control panel (also a bit pricy)? anything that can help would be appreciated, i checked the other links but didn't see anything about one with a digital pressure switch. maybe i should convert it from digital to analog....thoughts?
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Hello Jeff... you've confirmed that you have power to the pressure switch.

You also said that you tried to bypass the PS to see if the motor would start.

Did you actually check with a multi-meter to see if power was getting to the motor circuit?

If power is flowing from the switch and nothing is happening at the motor, then my next step if this were my compressor is to check the start capacitor to see if it is working and power is getting through it to the motor itself.

See the page on checking capacitors on this site.

Bill

Comments for kobalt VLK1382209 - no sound at all, power is getting to the pressure switch

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Feb 22, 2013
thanks for your ideas, i will check
by: jeff burnette

thanks so much for helping me out with this, i will check that (after a little research of course) i honestly know nothing much about these, especially the digital kind of pressure switch. i will get back with another comment as soon as i know more. thanks again!
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You are most welcome Jeff. Good luck and let us know how it turns out as a comment here, if you would.

B.


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Model #232177 has no air to tank

by Tom
(Plant City, Fl USA)

Kobalt 5.5 Gal 135PSI model #232177 Serial # 120822. The motor starts and the piston moves, however no air gets into the tank. I've had the compressor for about 2 years. I used it a couple of days ago and when I tried to use it yesterday, the problem arose.
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Tom, it is difficult for me to determine from your post if the compressor is actually pumping air or not.

What I suggest you do is stop the compressor, remove the fitting from the top of the pump that has the line down to the tank, start the compressor, and see what's coming out of that port.

Then, read the troubleshooting page on why air compressors run but don't build pressure if you are finding that little or no air is coming out of that port on the pump head.

Then, post a comment here telling us all what you found.

Bill

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kobalt 1.5hp 26 gallon VLK1582609 not building pressure

by David Tyler
(Cottondale, FL)

I have found similar questions but mine is just a little different.

My compressor will not build any pressure not only that - on the tank pressure gauge it says I have 40 psi but that is even after i have let all the air out of the tank. (that may be just a bad gauge but just thought I would mention it.)

I have checked the gasket it seemed a little loose when I took it off so I put some clear cilicone to try and get a good seal.

All the reeds seem to be intact did not notice any damage. I am a little unclear on how to actually check the pressure valve and intake valve.

The valve that comes out of the manifold when I take the tube off am I supposed to be able to feel air coming out of the valve or not.

Sorry if this question has already been answered. Please point me in the right direction one way or the other. Thanks so much for your time and patience.
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Hello David. If the tank gauge shows 40 PSI, and you have opened the tank drain with the compressor off, and no air is blowing out, before we decide that it's a bum gauge (which happens quite often, the insides rust) rock the compressor side to side a bit to be sure, as much as possible, that nothing is blocking the tank drain.

If you don't get spurts of air and water / mist, then likely it't time for a new gauge.

Nope, you cannot check the valves with the pump disassembled. All you can do, with the compressor pump reassembled and the compressor on, is to feel the intake port on the head to be sure that it's pulling air in steadily, and not huffing air back out.

As to the pressure side, pulling the tube from the pump head to the tank, you can then try to blow the outflow from the pump with a gloved finger. While you can slow it, you shouldn't be able to stop the flow out, and if you can, that would suggest that the pressure valve is going, or the air being compressed is going somewhere else, and that's either back out the intake, or down into the sump and out the oil vent cap.

Bill

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