Jabsco Pump Wiring Issue

My recently installed port side rear jabsco ballast puppy fills when I push the 3 way toggle into fill position and it also fills when I push it into empty position. Any thoughts on why this is happening. The starboard side one works perfect. The only difference is that the intake hose is on the right of the starboard pump and on the left of the port pump. Would this cause any issue or are we looking at a purely wiring issue. I double checked all connections when I installed so that both pumps matched, and am stumped at how it can fill in both positions, and not empty at all...unless I reverse the wires at the pump then it empties in both positions.