I had lots of problems with mine when I fist got my Trailer. No one told me you can't stop mid way. If the relay trips you have to reset it like the above poster told you. On mine I had to disconnect one motor which you have to remove the screw from out side under the rubber trim. The slide needs to be open to access the screw. Also when you get it resynced you should hold the button for 5 seconds after it's all the way in or out.
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