Port side rear ballast bag not draining from display - 2014 RZ2

[itaintsankyet]

I recently upgraded to a 2014 Tige RZ2 and I love this boat, however, I am stumped by the following and hoping for someone else with similar problem and fix?

• when trying to drain the port side rear ballast I get no response from digital screen
• will drain water when switch under helm is activated, so assume it is not the pump
• ALL bags will fill from digital display and port front, starboard rear and starboard front all drain from display

Had dealership look at it and they said I possibly needed to replace the Medallion part# 1539-10325-01 (assuming computer). This looks expensive and hard to find...any other thoughts on how I could troubleshoot this issue?

It is a littlie annoying having to climb under by helm, remove cover baffles and find switch just to drain this single bag every time...there's got to be a better way. Appreciate ANY and all help.

Thank you,
Jason

[chpthril]

IIRC, the screen command its own fuse thats separate from the manual override switch. So pop the cover off the Viper box and find the rear drain pump fuse.

[itaintsankyet]

Over the weekend, I was finally able to pull the boat out and dig in. I checked the 5 amp fuse under the helm and looked fine. Also shunted the connectors eliminating the fuse all together, still no drain pump. The next thing I am going to try is swapping the stbd drain for the port to see if that will turn it on. If that works then I know there is something wrong in the board itself (I think!). If that is the case, I may need some help finding that board for sale, somewhere?

Would have done it this weekend, but you know had to actually go on the water for Labor Day!

[chpthril]

$20 volt/ohm meter from harbor freight will tell you everything you seek without swapping any parts.