Questions asks 2024-12-21 11:31:00

How do I use the Fluke ST120+ GFCI Socket Tester to test a GFCI outlet?

Accepted answer 2024-12-21 11:31:00
Fluke-ST120+-GFCI-Socket-Tester-product
To test a GFCI outlet using the Fluke ST120+ GFCI Socket Tester, follow these steps:

1. Before plugging the Fluke ST120+ into the GFCI outlet, push the GFCI test button on the outlet itself to trip the GFCI. If the GFCI does not trip, it indicates a faulty outlet that should be replaced.

2. After the GFCI trips, push the RESET button on the outlet to reset it.

3. Plug the Fluke ST120+ into the GFCI outlet.

4. Push the blue GFCI test button on the Fluke ST120+ and hold it for a minimum of 6 seconds. As you push the GFCI test button, the LED to the left of the button briefly turns on. Once the GFCI trips, all of the LEDs on the Fluke ST120+ go out.

5. If the GFCI does not trip, or if any of the LEDs on the Fluke ST120+ remain on, it indicates a problem with the wiring of the outlet, the outlet itself, or the Fluke ST120+. In such cases, it is recommended to consult an electrician to determine the problem.

Please note that these instructions are a summary and it is important to refer to the Fluke ST120+ GFCI Socket Tester Instruction Manual for complete and accurate information.
Original question and details
I recently purchased the Fluke ST120+ GFCI Socket Tester and I'm not sure how to use it to test a GFCI outlet. Can you provide step-by-step instructions?

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