25 gallon 5hp Craftsmen blows fuse after cycling maybe 3 or 4 times

by Brock
(California)

I'm running this compressor in my garage off of a 15 amp wall socket. The compressor itself says 18 amps but I can normally get 3 or 4 fills/refills before the socket clips out (GFI). I investigated the wiring in the wall and it looks to be 14 gauge so upgrading to a 20 amp plugin won't be an option. I'm guessing the circuit is heating up and then starts to trip?


Could I decrease the load somehow by using a thicker gauge ext cord between the comp and the socket? Would this slow the load down perhaps? Appreciate any help you can offer!

___________________
Bill says...

Brock, I am no electrician, but even with my limited knowledge, I am surprised that you can get your air compressor to run at all.

First off, a 5 HP compressor motor normally needs a 220 volt power supply, and I can't figure out how you are running an extension cord in the first place.

Second, by using any type of extension cord, you are only making the problem worse. You don't have enough power now, and by using an extension cord, you are reducing the already too low power to the compressor because of line loss.

If I were trying to earn money with an air compressor, I would want as much compressor uptime I could get, and for me that would mean having a professional wiring job, and regular and complete compressor maintenance.

Cheers,

Bill

Click here to post comments

Add your own question or comment. It's easy to do. How? Simply click here to return to Craftsman Compressor Issues.

craftsman - engine turns a couple of times then it blows the circuit breaker

by Jose
(Porterville, Ca. USA)


33 gal 1.6 horse power 150psi max craftsman aircompressor

engine turns a couple of times then it blows the circuit breaker

__________________
Jose, does it do this with air in the tank, or with no air.

If air in the tank, bleed it down to zero, close the drain, and try to start the compressor.

Any change?

Cheers,

Bill

Comments for craftsman - engine turns a couple of times then it blows the circuit breaker

Click here to add your own comments

Jun 24, 2013
3 revs of the pump and stops...and blows wall circuit breaker
by: Rich

I 'm having issues with the 26 gal 1.5HP Craftsman (16471). First time out of the box, it fills the tank to pressure. No issue. The second time I turn the compressor (a day or two later), it does about 3 pump revolutions and stops. Motor still wants to go, but doesn't. I either turn it off, or trip the breaker. BTW, this is the second compressor in on month to do this. Same model, same failure. With a 50% duty cycle, I don't think filling the tank should cause a problem. If overheating was a problem, then trying it one time a few days later shouldn't be a problem.

Any suggestions?
__________________
Still wondering if the unloader valve works?

Click here to add your own comments

Add your own question or comment. It's easy to do. How? Simply click here to return to Craftsman Compressor Issues.

Craftsman compressor builds up pressure and blows breaker instead of shutting off

by Steve
(Avondale, AZ)

I have a craftsman 10 gallon compressor that works ok up to about 60-70 psi then it blows the breaker unless i get to it quick enough to shut it off. i need to get it up to a higher pressure and cut in and out when the pressure dictates, can this be fixed with a pressure switch replacement or do i need a whole new regulator and pressure switch ?
Thank You
_______________
Steve, assuming there are no issues with the power supply or the run capacitor, then it is logical to think that the problem is caused by the pressure switch shorting out at the 60-70 PSI.

Replacing the pressure switch may be the lowest cost solution. If that works, great. If it doesn't, you now have a spare switch.

See the page about testing your caps, too. That might be the issue. If you do that, and the cap is OK, then I'd change the pressure switch.

Cheers,

Bill

Click here to post comments

Add your own question or comment. It's easy to do. How? Simply click here to return to Craftsman Compressor Issues.