My suggestion is to follow Doug's quick check list first, it's a hugh time saver overall.
I have seen the step fuses in a variety of places, near the on off switch near the entry, in the jumble usually found under the dash cowling, in the area in front of the firewall and in house installed fuse panels that mimic or are exactly the same as the chassis mfg used. Page 9 of the #888 manual shows three fuses, they do get scattered around and are sometimes hooked up differently that the schematic shows. Finding them is sometimes a **** shoot.
In my limited experience, in order I have found failure most often in the motor and then in the magnetic door switch. I guess a blown fuse is not out of the question but I've not heard of even one, the controllers and ground connections are seldom the problem in my experience.
Do an advanced search of dougrainer posts and you'll find hundreds of posts very similar to the one he made in this thread. He is experienced.
