On 12/6/2015 3:26 PM, Ron wrote:
My mom has a ceiling fan with a light kit. When the wall switch (single toggle)
is in the on (up) position the fan will run and when the switch is in the off
position (down) the fan stops running. OK, that is normal.

Here is the problem, the light will only turn on and off using the chain, and
it doesn't matter if the wall switch is in the on or off position. Wall switch
up, light turns on and off with chain. Wall switch down, light turns on and off
with chain. What is going on here?

BTW, this isn't a new problem. She bought the house 6 years ago and it has just
now been brought to my attention.

The "fixture" looks like a fan and a light. So, two "supply" wires (line)
and one "return" (neutral) wire.

This allows you to install a speed control for the fan *and/or* a dimmer
for the light. Had the two "supply" wires been tied together *in* the
fixture (i.e., so the fixture just had one hot and one neutral), you
could use the switches (pull chain, etc.) to control the fan and/or
light, but couldn't use a dimmer or speed control (because you couldn't
"supply" just the fan or just the light from that REMOTELY located
control/switch).

How do you *want* the fan/light to behave? Within reason, you can change
this behavior (e.g., so both turn off with the switch; add a second
switch for REMOTE control of each function independantly, etc.)