compressor will not build pressure over 40 psi

by paul
(winfield, mo.63389)

HUSKY 22 GAL WL660500AJ will not build pressure over 40 psi and continues running.


I read the troubleshooting article and not sure if it applies to me.

Turned compressor off, no leaks. Holds the 40 psi for days. Thought tank gauge was broken, replaced it. Same problem.

I bought this compressor for $50 used, and many parts appear not to be original.(30 ft elect cord, tank gauge placement)I am not afraid to sink a little money and time into it. I have a pump/motor on order. Any other suggestions. pump is WL390002AJ. I should probably shorten the cord, but how much? This is a small motor/pump maybe 1 or 2 hp.oiless. Appreciate any suggestions CH also has similiar version.

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Bill says...

Paul, that the tank holds air tells me that the check valve is working.

Unplug it, drain the tank, close the drain, and plug it back in. Now, if you can pull the intake air filter, feel the port to see if you can tell if it's pulling air in, or pulling in and puffing back out.

If it is puffing air out the intake port, then you have a valve problem.

Let me know if this helps via a post to this thread, please.

Bill

Comments for compressor will not build pressure over 40 psi

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Aug 19, 2013
Same Problem
by: Ernesto

Where did you buy the pump/motor?

Mar 12, 2011
replaced pump
by: paul

Hi Bill, I replaced the pump/motor, all works fine now, thanks

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husky 30 gallon quiet series has no pressure build up

by robert
(redding ca)

my husky 30 gallon "quiet series" turns on when plugged into the wall but it will not fill up with any air or pressure.
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Do you get any pressure build up at all Robert or it just runs with zero pressure build?

If you pop over to the site map page under troubleshooting and follow the links to the page about why air compressors will not build pressure, you will see some checks you can do. Do them, and then add a comment here with what you found, OK?

Cheers,

Bill

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husky 2.5 compressor is not building pressure

by Pedro
(san jose ca. )

Doesnt want to build any pressure zero husky 2.5 gal. still new only a few hours ,it huuums like a vacume cleaner it realeases the air

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Bill says...

Pedro, are you saying that your air compressor will not start, and just makes a humming sound instead of pumping air?

And, please, what do you mean by "it realeases the air "?

Please post your responses as a comment here so I can follow the thread.

Cheers,

Bill

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My Husky Compressor Wont Build to Shutoff Pressure

My husky compressor just keeps running, up to about 60 psi in tank and then wont go higher. a week ago it would run to about 90 psi and keep running no higher pressure.

does not leak out when off, holds the pressure pretty well for week or so.

what is wrong? should i just trash this thing?
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Well, whether or not you trash it depends on how handy you are, whether you have time to tear it down and rebuild it if necessary, and if the cost of air compressor parts necessary is higher than you wish as compared to the price of a new air compressor.

You don't indicate the model or the age, but if you've gotten good life out of it, and don't want the hassle of repairing it, keep the usable parts (pressure switch, PRV, gauges, regulator, etc.) for spare parts and get a new air compressor.

See the sitemap page under troubleshooting for a link to a page about why an air compressor runs but stops building pressure. Do the checks. That may help you decide.

Cheers,

Bill

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Husky 20 Gallon Vertical Portable Compressor for painting?

by jr
(mayaguez, p.r)

looking to paint my car as i do not have a lot of money i was looking to buy Husky 20 Gallon Vertical Portable Compressor 20 Gallon 1.8 HP, 155 PSI, 4.3 SCFM @90 PSI and looking at Husky HVLP and Conventional Spray Gun Kit 5.1 SCFM @ 40psi. can you help me as i do not know if the spray gun will work with the Compressor

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Bill says...

Hey JR.

I wish I could find a formula that would let me (and by extension the thousands of readers on this website) that would allow me to convert compressor outputs.

I have never found that formula, though I have been looking a long time.

So, here's the straight goods. I think that compressor output figures are similar in accuracy to the mileage numbers they show for new cars. Theoretically they should get those numbers, but in real life???

I mention this as theoretically your air compressor is close to big enough. Having a 20 gallon tank will help as the larger the reservoir of pre-compressed air you have, the more you can spray before you have to wait for your compressor to catch up.

If you were buying an industrial air compressor, the tech people at that supplier could tell you for sure. Since you are looking to buy from a big box store... it's sometimes hard to talk to folks that have any idea about some things they sell, you know.

Wish I could tell you for sure. If it were me, I wouldn't buy the 1.8 HP compressor, as I would feel it was too small.

Good luck.

Bill

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Husky 135psi max compressor - Pressure switch or safety valve?

by Gary Hensley
(St.Louis, Mi)

Bill, I have a Husky 135psi max compressor, the compressor will not shut off at 135psi, and when it hits 140 the safety valve pops open. Is this a switch problem or a safety valve problem? Can I adjust the switch? Thank you.
Gary

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Bill says...

Gary, it depends a bit on what the Husky compressor was working like when it did work properly.

What was the normal cut in and cut out pressure levels?

If, typically, it shut off at 120 PSI, and is now running up to the point that the PRV lets go, then in my opinion, you need a new pressure switch.

Cheers,

Bill

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