We recently had several ceiling fans installed in our house. All of them work - except one in a bedroom. It has a remote, and the light fixture goes off and on all day and all night. Randomly. We want to change the frequency of the remote - maybe it's picking ip something else in the neighborhood - but we don't know how. There was no "owner's manual" with the fan, only an installation guide, and that doesn't tell how to set the frequency. It's a Harbor Breeze Avian fan. Help?

There are "dip switches" in the remote and in the receiver. See:

Ceiling fan remote controls - help and FAQ- Ceiling Fans N More (http://www.ceiling-fans-n-more.com/ceiling-fan-remote-controls.php)