There are two different ways to turn on the fridge on the Siesta Pacific, depending on the specific one you have.
Note: the more you put in, the more battery will be used and the food will freeze.
Type 1 (PICO)
Type 2 (CBE)
To turn on the fridge, simply press the rightmost button above the sliding door on the inside. The button can be found next to the buttons for turning on the lights.
Note: when the fridge is switched on, a yellow light will appear next to the button and you will be able to hear the fridge resistance working.
Note: the more you put in, the more battery will be used and the food will freeze.