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1) The type of light bulbs that you are referring that is spiral shaped are CFL (Compact Fluorescent) bulbs.
2) Is the ceiling fan light kit controlled only by the pull chains or do you have a wall switch that controls the light bulbs? If a wall switch, is this a regular ON/OFF switch or is it a dimmer switch?
Thanks for the replies Sherri.
1) The reason I was asking about the switch is that a dimmer switch requires dimmable CFL bulbs when using CFL's. Using non-dimmable CFL's with a dimmer switch is a common problem in the industry since CFL's were initially brought to market. But since your switch is a regular ON/OFF switch, then that is not the problem.
2) Flickering lights (no matter what type bulbs) are typically caused by a loose wiring connection or a loose bulb or loose socket not making proper contact. I would recommend to turn the circuit breaker to OFF and inspect the sockets and bulbs to make sure they are snug. If all is good there, then the next step would be to perform a visual inspection of the light kit wiring harness. This will involve removing the light kit and checking for any loose wires. You will have a black and a white wire connecting to each light bulb socket. Depending upon the fan manufacturer, the wiring harness will be connected to all of the light bulb sockets and the wires may either all be spliced together using plastic wire nuts or they may be terminated into a plastic male/female type of connector. Also depending upon the manufacturer, the wiring harness connection may either be at the bottom of the light kit housing or it may be up at the ceiling canopy. Unfortunately, there is no standard on this with all of the fan manufacturers.
3) For starters, I would recommend to check the snugness of the bulbs and the sockets first. Another quick option would be to install 3 new bulbs from a different manufacturer. Possible that the existing bulbs may have originated from a bad batch.
If those are all OK, we can take it from there and move onto the actual wiring harness connection if you like.........Let me know..........Thanks..............Kevin!
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The next time you have an electrical question, you can also request for me at:http://www.justanswer.com/home-improvement/expert-your-electrician ..........Thanks..............Kevin!
Hi Sherri........thank you for the excellent service rating..........much appreciated!
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Take care and have a great weekend..............Thanks................Kevin!
1) That is somewhat common on CFL bulbs that are about to go faulty and completely burn out. I've seen that a few times on my CFL bulbs that I use. Other times, when a CFL is going faulty, there will not be any dark marks on the bottom of the bulb. Although, at the very bottom of the bulb, there will be a slight dimple on the bottom spiral. I've been using CFL's for around 5 years in my home and I've seen both occur. Although, I've seen the small dimple more than I've seen the dark spots.
2) Hopefully, you just got a bad batch of bulbs.......I've been down that road a few times. Try a different brand, maybe Sylvania.