When I try to do this the fan comes on, but the lights are very very dim, and barely turn on.
This is a poor design in fan. Not many houses have 3 wire ran to the fan, and no house has 4 wire ran to the fan. To be able to control the three separate features, you need 4 wires. 3 switched, and 1 neutral. Who wants to have to turn on the night light every day, you may as well just turn on the actual light when you go to the bathroom at night. Your option is have the night light on all the time, which the bulb would not last long. If anything, the night light should be wired hot, and have a light sensor.
Date published: 2015-09-05