GFCI tester - open ground?
I just installed a new bathroom circuit. It's pretty simple - one receptacle, fan/light, vanity light, two switches. I tested the outlet and both switches - all good. The receptacle is GFCI and the load side feeds the double switch for the light and fan/light. I tested the GFCI using the TEST button. That went well, also.
Then I plugged in my Ideal GFCI tester. Two green lights came on. The problem - when I clicked the test button on the tester, it did not trip the GFCI outlet, and the lights changed, indicating that there is an open ground.
I checked everywhere and can not find an open ground. I also checked for an open ground by using my neon tester between each of the black wires and the ground wire.
Perhaps the GFCI outlet is defective? Is there anything else I can check?