Quick fill switch not working

[SJohnson 0]

Hey all! Brand new to this forum but have already found some super helpful threads. I have a 2016 Supreme S238. The port side quick fill switch isn't working and I'm curious if anyone has ideas on what to look for or what the part would be to order for a new switch? I noticed first because the light wouldn't come on, then I noticed the wave on the port side looked different. I pulled it out of the water without emptying the tanks and the starboard side emptied out but nothing happened with the port side. 

Any ideas??? Thanks in advance!

Edited July 28, 2020 by SJohnson

[viking 491]

It's probably not the switch itself but the valve is stuck.  Try and manually open it with the red allen key and see if the switch lights up when sensor sees it's open.  Most likely a valve issue which is common.