helping a friend in an older house, circa early 50's. An electrician installed a new service, 200A homeline panel. I am going through it with the owner replacing outlets and switches as many are worn out. Have found many incorrect splices, no grounds on outlets, etc. fixing as we go.
problem. the kitchen has two near the sink outlets, ground faulted in the panel.
one works perfectly. the other does not. The ground on that circuit is open somewhere in the house. plan is to run a separate ground as we can not find the break. there is a light fixture abouve the sink powered off of this outlet through a switch. when it is turned on, the gfci in the panel trips. friend replaced light fixture, still same problem.
When I test the gfci with a plug in tester it will not trip. if I bootleg a temp ground from another circuit I can shut down the gfci with the tester.
First if you are going to run a ground then you should run a new circuit.
Do not install 3 prong outlets in a system that does not have a ground.
You are doing this stuff for a friend,That friendship will end when something goes wrong and you will be the one who pays the bills created if something goes wrong.
If you are being paid by your friend to do this work and you are not licensed and insured in Massachusetts and have pulled the required permit for this job you can be charged with a felony be fined and do time in the house of correction . Sorry but what you are doing for your friend will get you screwed for life in this state,,is it really worth it?
If this was your house then cool do it , but this is someone else's property and they will stiff you to save their butts if and when something goes wrong ,,,,,you will get the blame .
Tell your friends to get a licensed electrician that will pull a permit.
"Government is not the solution to our problem; Government is the problem."