Electrical Troubleshooting Quiz - April 12, 2016 razyph/iStock/Thinkstock

Electrical Troubleshooting Quiz - April 12, 2016

The motor failures are probably due to the same cause as the tingling: no equipment grounding conductor (EGC).

A local hotel manager wants you to solve a problem with the outdoor hot tubs they had installed last fall. The tubs were closed for winter but put back into service a few weeks ago.

“It’s the strangest thing,” the hotel manager says, “Everything worked fine during the installer’s 90-day warranty period. But three pump motors failed in just the past few weeks.”

He goes on to tell you that some people complained of feeling “tingled&r

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