A couple weeks ago when the temperature was about 25 Farenheit, I kicked on my ARB lockers. After I finished up off-road, I unlocked the differential, but forgot to turn off the power to the compressor.
I got onto the freeway, differential still unlocked, and about 15 minutes later I heard a large amount of rushing air escape from the system somewhere. Immediately the compressor, sensing a loss of pressure, kicked on and ran, but it must have just been pumping air out into the open because it ran and ran without stop.
It took me 5-10 minutes to get to a safe stopping place and by that time the compressor was totally dead, burned out I suppose from running constantly for that length of time. (I hadn't yet installed an on/off switch to the compressor in the cab. I only have a locker switch. To turn the compressor on and off I have to open the hood, which is why I forgot to do it.)
Anyway, I now have a non-functional locker and an apparently burned out compressor.
My questions are:
1) What is the most likely failure point given what I know? The air line or the differential itself? Any suggestions on how to find the break and repair it?2) What was the likely cause of the break? Is it risky to use compressed air in low temperatures?
3) Does the ARB compressor have an internal fuse which could be replaced... or is it likely just completely burned out and dead at this point?