Kobalt K7580V2 - unloader valve? Does this sound right?

by Randy
(Macon, Georgia)

Can't find the unloader valve on the spec sheets. I have a Kobalt K7580V2 that builds one tank fine then overloads/ trips breaker during start up of next tank.It's not consistent, may run fine for 3 hours then starts acting up again. Sounds like as I read it maybe unloader valve. Does this sound right?


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Bill says...

Randy, sure sounds like a sticky unloader. If you have a Condor brand pressure switch, instead of being on the outside where you can get at it, the unloader mechanism is inside the switch, and bleeds out the bottom or the side.

Bill

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Jan 02, 2012
Kobalt unloader valve
by: Randy

Thanks Bill, just replaced the pressure switch Friday and still having the problem. But the unloader is in the pressure switch, right? It's a square D switch and has a copper line from the switch to the underside of the pump some where. At least that's what it looks like. I really appreciate the help.

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Have a look at this page and see if any of the info offers help:

http://products.schneider-electric.us/products-services/products/fluid-control/nema-type-pressure-and-vacuum-switches/9013-g-square-d-pressure-switches/#tab=2

Bill


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compresser wont start, unless shaken

by scott
(south san francisco)

my comperssor wont start unless i shake it a little, as if there was a loose wire. it will run for a few seconds then shut off. any ideas? i opend cover and there was no loose wires

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Bill says....

Shaken...? Hmmmm? Now that's a good one.

I'm going to take a flyer, since you have not been able to see any loose wires, and suggest that your pressure switch might be wonky.

Since Kobalt has a gazillion models of air compressors, I don't know which you have, nor how it is configured.

Cheers,

Bill


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