I need to install a ceiling fan. I uninstalled the old one. there are 5 wires. and I was expecting just 3.
there are 2 white, 1 green, 1 blue and 1 gray wire.
the green wire and one of the white wires have the medal part.
also they both connected to the brown wire using the connector.
From this pic, you can see blue and gray wires connected to the big gray wire. white wire (without metal part) connected to the big white wire. and green and white wires (both has metal) connected to the brown wire.
First question, I need to find the grounding wire. Is that green one the ground wire? Is it safe to strip off the metal part.
second question I need find a black wire. however I only have blue and gray. which one I should use?