Suburban Hot Water Heater SW10DE

There is probably a wall switch near the kitchen sink area, it will be a lighted toggle type. Next on the outside, behind the heater "grill", on the lower left is another toggle type switch that may have a pin through the toggle. This is a "safety" switch that is in place to prevent accidental power to the element if tank is empty. Normally, one will keep this switch "on"and use the inside switch to turn the element on/off.

Jim