How do I check and maintain the ground-fault circuit-interrupter (GFCI) plug before use?
To test the GFCI plug, insert it into a grounding type receptacle. Press the 'RESET' button; then press the 'TEST' button. The indicator should turn off to confirm proper operation. If the light does not change as expected, do not use the pump and contact Bestway Customer Service.
From the official Bestway 58486 Flowclear Sand Filter Pump manual, page 8
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