There is an amber light on the left, a thumb switch in middle & a red light on the right, located on the bottom of the freezer. I know the amber light is a power supply light. But what does the switch & red light mean? And what should be done if the red light is on, along w/ the amber light? Thanks in advance for your assistance. Debbie What does the red light on the bottom of freezer mean? I know the amber light is a power supply light.