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I sent an email to Wes Westhaver, the maker of the Zaxis, because both my Dad and I had a fuse blow. His response made a great deal of sense. In part, he said:
If you have your jacks running in one direction and then reverse them without letting the motor come to a complete stop the fuse can be blown.
When the power is removed from the motor it acts like a small generator and produces a reverse voltage nearly the same as the battery voltage. If you quickly flip the rocker switch to reverse the motor, this voltage is added to the battery voltage and you have nearly 24 volts present in the landing gear circuit and this can cause the fuse to blow. This is a common phenomenon that occurs with electric motors. The only preventative measure that can be taken to prevent this is to allow the motor to come to a full stop before reversing its direction.
My Dad and I both did this, as having a remote in your hand, it is alot easier to go up then down, quickly. Now, we don't do this.
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