Just recently bought this SMB:
It had a Planar Aux Diesel Tank in the back of the cabin. I was not a van of having the fuel in the cabin so i wanted to connect the heater to the main diesel tank.
There was a fuel line that was capped coming out of the floor, i traced it under the vehicle and it does in fact go to the top of the diesel tank. Jackpot.
So i removed the Aux tank, and connected the heater line and fuel pump (fuel pump is right next to the heater, heater is located in the back 3 ft of the E350 EB, in the bottom of a cabinet).
The heater turns on, the fuel pump clicks (it had never done this before, but is apparently normal), the turns off with error code 13. That code has many meanings but "no/low fuel" is one.
So I am guessing the fuel pump may not be able to pull all the way from the main tank (about 6 ft of hose from heater to diesel tank). Also, good chance the line is full of air.
Is my line run too long? (note it was installed this way before then disconnected and the aux tank installed)
Do i need to prime the line/pump?
Everything worked fine and dandy before i pulled the aux tank. So I know the heater, controller, etc are good. But like I said, wasnt loving the idea of a diesel tank inside the van.
Thoughts, or ideas?