Appliance Repair Questions? Ask a Technician for Answers ASAP
Hi, thanks for using JustAnswer.com. I suspect you have a poor connection where the bulb screws in or a bulb that is about to go out. If it were me, I would just replace the bulb with a new one and be sure to screw it in tight. A small amount of Vaseline around the threads will make installation and future removal easier...