Was adding a light fixture to a ceiling fan. What should be a simple "connect white & black wire" effort is not working! There's a TON of wires of all different colors inside the fan housing. Most had multiple wires all pigtailed and wire nutted together. There were two loose leads that appeared tailor made for lights. One a white wire pigtailed off a bunch of other white wires. The second was a black wire coming directly from the ceiling, NOT pigtailed to anything else.
Hooked them up to the light and no go. Got the voltmeter out and was only getting about 10 VAC out of them. On closer inspection, the lone black wire has a faint white stripe running its length. Is this some three way switch wire? I didn't check ALL the wall switches, but even so why should there be ANY voltage across those wires if it's on another wall switch? Weird. All other wall switches were off.