2026 395DS with the 4 electronic waste gate valves. Three of my four valves are working as expected. My front black tank switch is showing the red light when in the off position, and when I move the switch to the open position, it blows the 4 amp fuse. Has anyone else experienced this, as I am not sure where to start to diagnose this issue.
Well, I guess I will state the obvious and say the the circuit is drawing to much current and blowing fuse. The million dollar question is why.
I would think that this would be limited to the following.
1. Loose power or ground connections
2. A short circuit where the power wire is making contact with a ground somewhere
3. Something in the valve mechanism is binding
4. A bad electric motor on the valve
5. Something stuck inside the plumbing causing the valve to bind .
If you can access the valve and disconnect the power wire and the fuse holds, it would help to rule out a short to ground.(generally speaking)
