At the beginning of this season, we purchased a brand new 2018 Torque T29 toy hauler. The fresh, gray and black water tanks have always read empty on the control panel (red indicator lights are working). The battery indicator seems to be fine as do all of the light switches. After pulling the control panel, all wires seem to be connected well. The tt has full underbelly insulation, so access to see the tanks is not possible. Any thoughts or information on how to resolve this problem would be greatly appreciated.