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How did you check the fuse(s) in the control module? They can look good and still be bad. Are you plugged into shore power or not? Do all the other 12 VDC operated systems work o.k.? Please get back to me with more information here and I can assist you further on this. If this is not an electric slide, but is hydraulic in operation please let me know. I believe this should be a Power Gear slide.