Greetings all,

I am trying to replace an old combo switch/outlet for a GFCI combo. (It serves the kitchen light and runs power to another outlet near the sink.)

Upon removing the old receptacle I noticed there was no grounding wire even though the old one had a 3-pronged outlet.

Should I run a grounding wire to the metal box from the GFCI unit even though there wasn't one there originally?