Being new, check warrantee.
Otherwise, contact manufacturer...my Lippert switch cost me around $35 to replace. My switch was broken.
You might also look on YouTube with your manufacturer info. Lippert has a video showing how to replace switch. Easy actually.
Take top cover off. Push switch out after unplugging wires. Replace switch.
2015 Sierra 1500 Denali
2014 Coleman 249RB
David Jon Devoucoux
People, Places & Things...for over 40 Years!