ARB Dual air compressor shorted out.

[Edub]

I need help on this one. My air compressor shorted out during my last off-road trip. I've had it for just over a year and I've used multiple times without incident.

Here is how I had it set up.

Grimm Offroad mounting bracket under the wheel well.

The small ARB harness was plugged into the extension wire the Grimm provides (plugged in numbered below).

1. black wire to ground on the right side of the engine bay.
2. Purple wire went to aux 4 (I extended it to reach)
3. the red wire was not used.

the small negative wire on the ARB side of the connector all the way to the compressor and back up the larger wiring harness leading back to the battery all melted.

None of the fuses were blown.

fortunately, both of the compressors still work individually but the top plate needs to be replaced for sure.

images are starting from the Grimm offroad adaptor connection and follow all the way back to the battery.

ARB says that because I had it connected to the Aux switch, they will not honor the warranty. it is salvageable/rebuildable and I'm willing to do the work, but I would very much like to know what I did wrong.

yes, removing this caused my other post about losing my brakes temporarily.

PS, no rubber duck on this one.

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[Turnswrench]

Did you have the main harness directly connected to the battery?

 

[Edub]

Did you have the main harness directly connected to the battery?

I did. both negative and positive. confirmed.

 

[chorky]

This is interesting. Wasnt there just another thread about a month ago with an arb compressor shorting out???

I would be questioning them hard why they wont honor the warranty. were you using aux 4 to power the purple wire (relatly power) so that the relay closed and allowed power from
the 2 10ga red wires to flow?

 

[Rusty PW]

Someone else had the same problem. Believe it was the small ground wire that shorted out.

 

[bakobobby]

Man you can’t catch a break lately. That bracket is aptly named might wanna hold a seance to exorcise any bad juju still left behind.

 

[813 Fabrication & Design]

I need help on this one. My air compressor shorted out during my last off-road trip. I've had it for just over a year and I've used multiple times without incident.

Here is how I had it set up.

Grimm Offroad mounting bracket under the wheel well.

The small ARB harness was plugged into the extension wire the Grimm provides (plugged in numbered below).

1. black wire to ground on the right side of the engine bay.
2. Purple wire went to aux 4 (I extended it to reach)
3. the red wire was not used.

the small negative wire on the ARB side of the connector all the way to the compressor and back up the larger wiring harness leading back to the battery all melted.

None of the fuses were blown.

fortunately, both of the compressors still work individually but the top plate needs to be replaced for sure.

images are starting from the Grimm offroad adaptor connection and follow all the way back to the battery.

ARB says that because I had it connected to the Aux switch, they will not honor the warranty. it is salvageable/rebuildable and I'm willing to do the work, but I would very much like to know what I did wrong.

yes, removing this caused my other post about losing my brakes temporarily.

PS, no rubber duck on this one.

So ARB says because you had it connected to the Jeep AUX switch they won't warranty the compressor? Sounds like something I need to caution my customers about.

 

[Edub]

Man you can’t catch a break lately. That bracket is aptly named might wanna hold a seance to exorcise any bad juju still left behind.

can't catch a "break." Ill pretend you did that intentionally and I'll say - I see what you did there.

to be fair, the braking issue was a result of my taking the compressor out to inspect it.

 

[Edub]

So ARB says because you had it connected to the Jeep AUX switch they won't warranty the compressor? Sounds like something I need to caution my customers about.

That's correct, I even spoke to a manager, and he repeated the same. Any non ARB switch instantly cancels out the warranty on the device.

 

[813 Fabrication & Design]

That's correct, I even spoke to a manager, and he repeated the same. Any non ARB switch instantly cancels out the warranty on the device.

Good to know!

 

[chorky]

That's correct, I even spoke to a manager, and he repeated the same. Any non ARB switch instantly cancels out the warranty on the device.

interesting. Well ARB just instantly lost a reputable name at least in my book.

 

[Edub]

Good to know!

I think it's safe to say at least in the way my device broke, I'm sure it all depends on what the error is.

It's also important to note that the manager I spoke to also said that he would try to send me the top plate needed to repair the device free of charge so calm down, not as bad as it seems. but yes, I was certainly surprised to hear about the voided warranty.

 

[chorky]

I think its safe to say at least in the way my device broke, I'm sure it all depends on what the error is.

Have you thoroughly inspected your wiring to see if there was a short somewhere?

the small ground looks to have some old corrosion in the wire as well.

 

[Edub]

I won't rule that out but how do I check? To me it just looks burnt covered in melted plastic.

 

[Edub]

one thing I did find while inspecting the negative wire was the terminal used for the negative cable didn't seem to be crimped properly. but this could also be a result of the heat. thoughts?

Would the heat have been hot enough to melt away any wire crimped inside? Clearly there had to be a connection of some sort or else it never would have worked, and I've been using it for over a year.

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