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Bobbo's avatar
Bobbo
Explorer II
Jan 07, 2016

Electrical conundrum quiz

I have solved this problem, but thought the electrical experts might try their hand at diagnosing this problem.

My father in law made a homemade extension cord. He took a 12/2 wG cable and put a plug on one end. He wired a box with a SPST ON/OFF switch to the hot wire. He then wired the other end with a duplex 15 amp outlet.

When he plugged ANYTHING into the outlet, it would not work. It was like it had no power, so he called me. (I have a reputation of being able to fix anything.)

I plugged in one of the 3 light testers.

With the power switch turned ON, all 3 lights were lit.

With the power switch turned OFF, the red and middle lights were lit up which normally indicates a hot/neutral reversal, but the right light was not on. Note that this is with the power switch turned OFF.

Anyone care to guess?

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