Unplug the refrigerator and remove the 40 watt incandescent light bulb and clean the socket. Make sure that it is completely clean of any rust or debris. If rusted get sandpaper or an emery board and rub the points that are rusty. Before putting the light bulb back make sure it does work and the filament is not broken and if so replace with a new bulb. Secondly check the on and off switch triggered by the door closing. Pop it out with a flat tip screw driver and check for black spots, or dislodged wires. Clean and re-connect the wires. Pop it back in and with the bulb secured in the socket plug the refrigerator back and see if the light works. Good Luck
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Unplug the refrigerator and remove the 40 watt incandescent light bulb and clean the socket. Make sure that it is completely clean of any rust or debris. If rusted get sandpaper or an emery board and rub the points that are rusty. Before putting the light bulb back make sure it does work and the filament is not broken and if so replace with a new bulb. Secondly check the on and off switch triggered by the door closing. Pop it out with a flat tip screw driver and check for black spots, or dislodged wires. Clean and re-connect the wires. Pop it back in and with the bulb secured in the socket plug the refrigerator back and see if the light works. Good Luck