The light bulbs in garage door opener
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.
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On Garage Door Openers