I really don't like Warn winches, for no good reason. I used to pull folks out that had the original one, and got down on them for that reason.
The ones after that one, like yours, are pretty good, but I guess first impressions stick with a fellow.
I used to be involved with a guy who built winches as a sideline. Used a Ford 6 volt starter and a planetary transmission. As a test, we would mount it to a big post sunk in the ground, hook a bus battery to it, and fill the spool half way with 5/16 steel core cable hooked to a chunk of old bulldozer.
Throw the switch and get behind a shield. It should break the cable without damage. He drew a chalk line down the shaft and stretched a string across the spool. If anything twisted, we rebuilt the frame and shafting.
A friend of ours brought in a new Warn. One of the first ones. He had gotten stuck, and it had just pulled up tight and quit. Another truck pulled up with one of our winches and pulled him out. So he wanted to see if we could fix his.
We could not find anything wrong with it, so we hooked up two batteries in parallel plus a heavy ground straight to the motor to see if it was a supply problem.
Pulled pretty good, right up until the aluminum gearbox exploded.
Surprisingly, not only was the guy not upset, he bought one our winches on the spot<G>.
Anyway, I veered off the reason I wrote in the first place.
Before I did a lot of work on the motor, I would do a search. There are a LOT of places that sell replacement motors.
Sometimes you can get a more powerful one for less than factory.
For instance:
http://www.db-starter-alternator.co... Motor for WARN 20 Spline HEAVY DUTY LRW0005
In case the weblink function here does not shrink that huge link down to size, here is the base link.
http://www.db-starter-alternator.com.
I don't think I have done business with this outfit before. I have bought aftermarket winch motors, but I don't have the info as to where right now.
But this outfit says they have one for your winch for $78, and if all else fails, at least the page has a schematic for the solenoid system.
If it looks confusing, remember the two end contacts are NC, and the two side contacts are NO.
J.