Kobalt digital air compressor cycles off and on

by WJ Hamilton
(Waycross, Georgia)

When I turn the Kobalt 20 gallon digital air compressor on it automatically shuts off then repeatedly comes on and off until manually shut down

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May 19, 2015
stops, but not really?
by: Doug in s.d.ca


What's the tank pressure while this is happening?

If the pressure is dropping in the tank, then it should start up again.

If it's not getting to cut-out pressure, and pausing, then may be a safety for the motor so it doesn't burn up.

May 19, 2015
Kobalt cycling on and off
by: Bill

Dan, I would surmise that yours is the digital version, and I think that you'll find that the compressor "brains" have fried.

I've not every been a proponent of the type of compressor control, preferring the simpler, and home-remedied manual regulator and pressure switch.

If the compressor is out of warranty, you'll probably find that trying to replace the digital portion will cost more than the compressor did in the first place.

Good luck with that.

May 18, 2015
Cycles on and off
by: Dan

Mine just started doing. Doesn't only takes a second to cut off and minute later will try again. Verified that the commpressor isn't frozen, actually has little resistance. Don't have pic of right now, but am curious if someone has fixed a similar issue

Apr 13, 2015
Model? or pix please
by: Doug in s.d.ca

New machine? Take it back.

If older or out of warranty, any other symptoms?

What happens if you leave the drain valve open?

Has any of the electrical changed (if it ever worked)?

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