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Kobalt Air Compressor Reset Button – Kobalt Air Compressor Keeps Tripping Reset Button

Published Categorized as Air Compressor Tripping Thermal Reset, Kobalt No Comments on Kobalt Air Compressor Reset Button – Kobalt Air Compressor Keeps Tripping Reset Button

A common problem with Kobalt air compressors is the Kobalt air compressor reset button tripping. This article will provide you with the most common reasons as to why this is happening, along with existing reader questions & responses!

Table of Contents

Reasons Kobalt Air Compressor Keeps Tripping Reset Button

There are a few reasons as to why your reset button may be tripping on your air compressor and these are:

  • Power supply
  • Air compressor runs too long
  • Centrifugal switch

Power Supply

Check to make sure that your air compressor is plugged right into the wall socket, and that it is not being powered through an extension cord or power bar. The extension or power bar may not be large enough to allow the flow of power that the compressor motor needs to operate efficiently.

Air Compressor Runs Too Long

If you are using your air compressor for extended periods, the typical DIY air compressor will overheat. The duty cycle of the compressor may be less than the time you are requiring it to run, and the motor will overheat. If you think this is happening to your air compressor, try only running it for ten minutes and then letting it sit for at least that time so the motor can cool, before firing it up again.

Centrifugal Switches

The centrifugal switch can stick which will keep the start windings energized tripping the thermal switch. If the centrifugal switch were to get stuck in an open position then the windings won’t shift properly. The start windings can’t withstand the heat of the compressor’s full RPM which subsequently causes the compressor to overheat, and trip the reset button.

For more detailed information, please visit our Air Compressor Reset Button Always Trips – Air Compressor Keeps Tripping Overload guide here!

FAQs (Frequently Asked Questions)

Does a Kobalt air compressor have a reset button on it?

Yes, the majority, if not all, Kobalt air compressors have a reset button on them to protect the compressor’s motor from damage. If for any reason, the Kobalt air compressor was to overheat, the reset button will trip to allow the compressor time to cool down.

Reader Questions & Responses

Kobalt Air Compressor Keeps Tripping Reset Button


Have a Kobalt 30-gallon tank with 2hp running on 120volt.

Replaced loader valve, pressure switch, and compressor.

The motor will run till it fills the tank up. then when the air gets low it tries to run but, it trips the reset button.

New Kobalt air compressors for sale
New Kobalt air compressors for sale

Check the start capacitor tested at 250 and the other at 40. Both read well.

What else can I do?

thanks, Dwayne


Is this a new compressor issue Dwayne? In other words, it just started happening but wasn’t it before when you used this same compressor in the same location with the same outlet?


It is a new compressor. The old one was locked up.


Boy, that must be annoying, having to change all those parts on a new Kobalt compressor.

It was me, I’d probably have taken it back under warranty and asked for another.

Your old air compressor, was plugged into the same outlet, yes? What was it and what was the HP on that motor?

You see, I’m wondering if the power supply to the outlet – particularly if it is far from the panel – may be compromised a bit.


Sounds like the check valve, but I’m with Bill – if this is the second bad one, get your money back and buy something else.


My Kobalt compressor also kicks out constantly. It sometimes will get to the shut-off pressure but not usually. I purchased it and since I had another compressor, I didn’t use it for months. It was past warranty before it was other than a trial run when I first got it home. When it shuts off it’s usually not up to pressure and then after reset, it shortly kicks out again… I should have known better than to buy this brand. Lowes sells some decent but a lot of low-quality tools.



Are you getting enough power to it?

No extension cord?

Depending on the model, it may have a run cap. Those can be/go bad, and also sometimes become disconnected. Worth some quick checks.

Start by looking at the pages on the troubleshooting page about compressors that are tripping resets.

Kobalt Air Compressor Keeps Tripping Off – Kobalt Air Compressor Troubleshooting


My Kobalt model # 2211495 keeps tripping off. How come?


Hello Bob. Can you provide a bit more info as a comment to this post for us so we can try and help? A photo or two would be good, too.

Try these ideas, please.

Pull the plug on your Kobalt, bleed the air down to zero PSI in the tank, and, after closing the compressor tank drain, plug it back in to start it.

Does it start properly, or does it trip out on startup now?

At what pressure does the motor trip off?

Is it the motor reset button that you push to get it going again, or is it the circuit breaker on the power supply?

What is the highest pressure that the compressor tank gauge shows before it trips off?

When you bleed off the air, at what pressure does it try to start again, and is that when it trips?

If you have any questions regarding Kobalt air compressor reset button tripping, please leave a comment below, with a photo if applicable, so that someone can help you!

By Aidan Weeks

A passionate Mechanical Engineer with endless enthusiasm for fluid power - building off the back of over 18 years of high quality contribution and discussion stimulated by Bill Wade here at About Air Compressors. With both practical and theoretical experience in pneumatics and hydraulics, I'm putting my knowledge to work - and working my grey-matter through my research, assistance and publishing work here at About Air Compressors. Feel free to reach out any time! P.S. A HUGE shout out to Doug who really offers such great value to all visitors to About Air Compressors - once again, feeling like I'm standing on the shoulders of GIANTS by getting to work alongside such a great community

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