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Ingersoll Rand Air Compressor Won’t Stay Running

Published Categorized as Air Compressor Won't Keep Running, Ingersoll Rand 2 Comments on Ingersoll Rand Air Compressor Won’t Stay Running

A common problem with Ingersoll Rand air compressors is their inability to stay running. This article will provide you with all the possible reasons why your Ingersoll Rand compressor won’t stay running, along with existing reader questions and responses related to the issue.

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Table of Contents

Reasons Ingersoll Rand Air Compressor Won’t Stay Running

At times you might have to face an issue with Ingersoll Rand not staying running, where the power light is on, and it might seem like the air compressor is on. But the Ingersoll Rand air compressor will not be working and there will be no pressure in the air compressor. This is often due to the following reasons provided in the table with tips:

Power issueCheck all the wiring. and fix if necessary. Press the reset button on your air compressor and hopefully, this will solve the issue.
Use of an extension cordAn extension cord with insufficient power will cause your compressor to not stay running. If you must use an extension cord, make sure suitable for this kind of application.
Faulty run capacitorIf the run capacitor keeps tripping, the motor will shut off, and you will likely need to replace the run capacitor to be able to use the air compressor as required.
Faulty unloader valveIf you have a problem with the unloader valve, it may sound like the pump is working extra hard at start-up and during the initial stages of operation before the compressor stops. May need replacing.
Air leakCheck for air leaks and fix them.
Oil leakEnsure there are no oil leaks, replace necessary parts to fix the leak.
Overheating motorIt may even be as simple as the compressor overheating, meaning that the thermal overload is tripping and the compressor is shutting down to protect the motor, allowing it time to cool down.
Ingersoll Rand Air Compressor Won’t Stay Running Reasons & Tips Table

Reader Questions & Responses

Ingersoll Rand Air Compressor Will Not Stay Running – Ingersoll Rand 185 Air Compressor Troubleshooting


The compressor starts fine and will run as long as you hold the key switch in the start position. As soon as you let the key switch return to on position, it loses power to the fuel pump.

Have jumped power directly to the fuel pump, and will run fine then.

Is there a solenoid or switch somewhere that could go bad, and cause the machine to lose power to pump when the switch is in on position?

Just put in a new switch, and double-checked power out when in on position, and there is power going out.

An older Ingersoll Rand P-185 air compressor
An older Ingersoll Rand P-185 air compressor


The power is leaving the switch? but not getting to the pump?

That says the wire is broken somewhere.

If you can’t easily trace it to find the fault, you can just run a new one. It’s possible the old one could be short at the fault, so disconnect the original (and tag it), too.


I had the same problem on my 1995 Ingersoll-Rand 185. The problem was that the over temp sensor on the screw head somehow become disconnected. The problem you are having sounds like mine, and that is one of the safeties is kicking on preventing the machine from running any longer double-check all of your safety sensors connections.

If you have any questions regarding Ingersoll Rand air compressors not staying running, please leave a comment below, with a photo if applicable, so that someone can help you!

By Bill Wade

About Air Compressors has been helping folks with their Air Compressor Problems since 2002 online. We're a community of DIY and Compressed Air professionals who are keen to support everyone across the globe with their air compressor issues and troubleshooting. Whether you're trying to identify an old air compressor, or troubleshoot an error code on a sophisticated new industrial air compressor - the community at About-Air-Compressors.com is here to help you

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