The light bubs in my 1/2 hp garage door opener will not work consistantly. Model #139.53985DEM, S/N 074912200815. I have confirmed the bulbs are good by placing in another lamp. Before if I wiggled the bulbs in the sockets they would come on and operate for a period of time. This week neither bulb would come on when the garage door was opened. I was only able to get one of the bulbs to light by wiggling it in the light socket. They are the correct light bulb base. The same type Craftsman door opener on the other garage door that was installed in 2001 works fine. This is a replacement unit installed in 2009 and not very good performance.
The Managemylife web site is a good resource to find out what may be happening with your Garage Door Opener. I did some research for you at Managemylife.com and found an excellent article that also has multiple expert answers at the bottom of the web page that addresses the most common questions that have been asked by other members. I hope this will help until your expert can answer your specific question. I attached the link below.
Thank you for your question on the bulbs for the garage door opener not working all the time.Remove power to the opener and remove the light bulbs from the sockets. With a flash light and a small flat bladed pocket screwdriver locate and lift or bend the little contact tab in the bottom of the light socket a little.This should make it contact the base contact on the bulb better.If this does not help you will need to replace the light bulb sockets but most of the time this little trick works.Sam A.
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