We have a 2000 Scenic Cruiser. There are two boxes with a red light and a switch. One is located on the side of the front counter and the other is located on the front of the bed structure next to a couple of fuse boxes. Are these tank heaters for the underbody? That's all I could think they might be.
The one in the rear under the bed is most likely an engine block heater (assuming your cruiser is the Spartan Cummins). Should look like a regular light switch but the switch itself illuminates red when tuned on.
The one on the side of the front counter is probably the electric water heater switch. It should only be turned on when there is water in the heater. Never turn it on if your water system is empty or if you haven't "primed" the hot water system to get water in the tank
Scenic Cruiser Switch Question
Linear Mode
