My compressor will not start?

by DANNY SPARKS
(SIBLEY, LA.)

COMPRESSOR WILL NOT START. WHEN I TURN ON BREAKER, MOTOR HAS LOUD BUZZ AND WILL NOT START.

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Danny, post a comment to this thread with the make and model of your air compressor, please.

There is a page under troubleshooting on the sitemap page that addresses the common reasons why air compressors will not start.

The buzzing sound you refer to suggests to me an electrical supply problem. Could be the extension cord is too small if you are using one. It could be that the breaker is too small for the size of the compressor. It could be the start capacitor... may things could be the cause.

Not knowing the HP of the motor makes any definite answer difficult.

And please don't leave your caps lock on. All upper case is considered shouting, and I - as do most folks - don't like to be shouted at.

Cheers,

Bill

Comments for My compressor will not start?

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Mar 15, 2013
air compressor was runing then would'nt start
by: Anonymous

craftsman 20-gal 1.5 hp oil-free,direct drive mod-no.921.166420
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See the troubleshooting section on the site map page for links to pages about this issue. When you have read them, post another comment here if you have more issues, or, start a new thread with complete details.

B.

Nov 29, 2012
when i turn it on, a buzzing sound & belt won,t turn, then the over ride switch kicks inn?
by: matt

toolex 15s 50-535018 aircompressor.
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Matt, is the buzzing sound coming from the pressure switch or the motor?

B.

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Compressor will not start?

by Jeremiah
( Venice la)

Compressor will not start has power going to it when try to start motor humms a bit checked fuses checked pressure switch and drained air motor is three phase what should i try next ?

We have checked both fuses relay switch pressure switch drained tank made sure voltage is going to machine but seems that voltage is not going to start switch i tried manually starting it and motor humms then the reset switch blows tried reseting it but wont start motor is 3 phase 480 volts
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Jeremiah, see the page on checking your capacitors. That's what I would do next.

Bill

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Alton air compressor wont start

by Cesar
(Seattle, WA)

The original capacitor - what capacitor

The original capacitor - what capacitor

The original capacitor - what capacitor
The one on Ebay
The one they sold me that blew up

I have an Alton 01213-25 Air Compressor. It is 3.5 HP and 25 Gallons.

It recently stopped starting, figured it was the capacitor. I went to a local shop and they gave me a plastic capacitor with similar ratings to my CBB65 120uf 250VAC capacitor but they gave me a capacitor that was rated for 124-149uf and 220-2250VAC.

The capacitor they sold me blew up about a minute after it started. Because of this I dont know whether to trust a capacitor on Ebay, it reads CBB60 and is 120uf 250VAC but the last letters on it read P0 and mine reads P1.

I dont know if this will affect anything. Would it be safe to buy it? Should I find a compressor that is 3.5 HP and simply change the capacitor? Are all capacitors THAT different? Thanks Bill.
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You need to visit an electrical motor shop and discuss the caps with them, Cesar.

I am not an electrical guy, and cannot provide the info you want.

Others might, and I invite them to comment here.

Bill

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5 hp electric motor froze up too much paint build up

by ben
(vacaville ca)

i sand and paint in my garage…air compressor stopped working…how can i repair it myself…please help
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Make, model, age, symptoms, air pressure in tank, won't start, runs but wont' fill.... what specifically?

You need to help me with more info about your air compressor so we can work togther to diagnose your compressor problem.

A good start is the page on this site about why air compressors will not run. Gives you some things to look for.

Bill


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