Warn winch end cap melted

I replaced a burnt out Polaris3500 with a Warn Provantage 3500 on my 2011 800 50" in the stock location inside the front end. On a hot day, I went for my first ride and after 45 minutes needed to use the winch. When I free spooled it, I could not get it to lock back in.
I removed it today and discovered the end cap used for locking/free spooling was melted and distorted from the rad/fan heat preventing it from rotating.
Has anyone else had this problem?
Any work arounds (shielding? ). ?
Thanks,
Steve