Bathroom Light Switch: Contact Autopsy

The dual switch controlling the bathroom lights¬†began requiring some fiddling, which was not to be tolerated. After replacing the switch, I cracked the old one open to see what’s inside…

The failed side of the switch controlled the lights over the sink:

Light switch contacts - lights

Light switch contacts – lights

The side for the ceiling vent fan + light got much less use, still worked, and look a bit less blasted.

Light switch contacts - ceiling fan

Light switch contacts – ceiling fan

Not much to choose between the two.¬†It’s been running for nigh onto two decades, so …


  1. #1 by celem on 2016-01-18 - 08:41

    My house was built in 1986 and several switches have similar failings. I went to Lowes and purchased a contractor’s pack of switches. Apparently they have a 30 year life and since they have similar usage they are failing nearly simultaneously.

    • #2 by Ed on 2016-01-18 - 08:52


      The fluorescent tubes in the Basement Laboratory used to get flickery in groups, because I installed all the fixtures at once. Now they fail more randomly, but it took a decade to get there …