The electrician got here today. The cause looks like arcing, as was suggested here.
We've got a new timer and the proper external box. The timer was the Intermatic T101, the one I was looking at online. I just requested a timer and didn't specify which one. (How new are the ones with the big plastic covers that cover the outlet with something plugged in?)
Puckdropper
They are not very new and have been around for quite some time. Code now requires them for use in a pool area.
Should have gone with the T101R (Outdoor version of what you have). Unless it is mounted inside somewhere.
Allen
allen476 wrote in news:07842d3d-6614-42f4-b071- snipped-for-privacy@f6g2000vbl.googlegroups.com:
I'd put those weatherproof outlet covers in there even if it wasn't required. They'd be an easy upgrade for an outlet used for Christmas lights as well.
It is the R version, I was going from memory on the model number.
Puckdropper
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