Bought a used ceiling fan w 2 pull chains and lights. Seller assures me it was working. Hung it up and wired it fan black and blue to ceiling black, white to white, and both a green wire from the down rod and a green wire from the fan hanging ball to the ceiling copper wire. Multimeter test shows 120v when red probe is touched to light socket and black probe to housing screw head. Pull chain to light shows 0 when chain is pulled off. Was a ceiling light with a single wall switch. Why is neither the lights or fan coming on?
You are testing hot (light socket center) to ground (housing screw) and getting 120 volts. How about between light socket center and light socket screw threads? This will test hot to neutral which is where you need the voltage. Assuming this is not near 120 volts, it sounds like your neutral (white) wire is not connected. You should probably take down the fan and test voltage between black and white wires or, better yet, reconnect the old light to test. Assuming this works, reconnect the fan, making sure the get good connections with the wirenuts.