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I show an negative earth ground in the trouble codes on a 4010 simplex-grinnel fire alarm system. When i go to the diagnostic screen to search for negative earth ground issue it does not give me the option for earth ground

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  • Anonymous Feb 23, 2009

    Simplex fire alarm system display shows



    "card 2, power supply/charger

    negative earth ground abnormal"



    Can anyone help troubleshoot this?

  • Perry Putnam
    Perry Putnam May 11, 2010

    This should be posted in the electrical section

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MAIN STORE:
Earth Sense Energy Systems

Address: W9715 Hwy 96 P.O. Box 167 Dale, WI 54931
Phone: (920) 779-6647
Toll Free: 1-800-236-6647

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