Chart of the Relation Between
Home Electrical Symptoms and Their Causes


S Y M P T O M
CAUSE: Does not work Goes off and on at will or flickers Runs dim or bright sometimes Won’t go off Shocks
Short/Ground-or-arc-fault/Overload Yes -- -- -- --
Circuit (or main) wire connection poor ("open") Yes Yes partially Yes -- --
Ground-fault without an intact intended ground path -- -- -- -- Yes
Miswiring Yes -- -- Yes Yes
Bad or mis-set device Yes Yes -- Yes --

© 2008 Larry Dimock