It is usually the switches. The original ones are crap. They replacements are made a little better, with a hood over the switch to keep the water out. They are easy to replace and not too expensive.
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2021 Forest River Sabre 37FLL
Towed with 2019 Silverado 2500 HD
B&W Turnover Ball Gooseneck hitch
Anderson Ultimate Connection 5th wheel hitch
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