1. IMPORTANT: Before attempting these steps, please make sure the power is OFF and the power cord is UNPLUGGED!
  2. Unscrew the problem light bulb from the mirror and you will see two bronze pins (one on the bottom and one on the side)
  3. You may see that the SIDE CONNECTION PIN is too close to the wall (not able to make strong contact with the light bulb)
  4. Use a flat screwdriver or a pen and gently push the side connection pin outwards (make it bend a little so that it is not complete flat against the wall)
  5. Screw the light bulb back in, plug in the power cord, and turn the power knob to turn on. The light bulb should have power now.