Gun, I did not mean to imply the light bulb controls the temperature inside the fridge. The inside temp is controlled by the thermostat inside the fridge. On my fridge, if the outside temp falls below 50 degrees (as it would because it's in my garage during the winter) the inside light bulb remains on wether the door is open or closed. This is to prevent the contents inside the fridge from freezing. My point was since the bulb burnt out, the contents inside the fridge froze since it was below 32 degrees outside.
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