Location of 40 amp fuse for HWH Levelers

Thanks so much for all the replies. I finally located the fuse holder. It was within a few inches of the solenoid. The 40 amp fuse had failed, taking the fuse holder with it. Replacement of fuse and holder was cheap, quick and simple. Everything works now. Unfortunately, I now have an extra 310 series control box that I ordered thinking it was the problem, as I originally diagnosed from the HWH troubleshooting steps. By the way, my HWH contact was also quite helpful when I contacted HWH directly. Wish I had started with HWH and with this forum before troubleshooting on my own.