We have a Harbor Breeze fan w/remote # FAN-11T. The remote controls the fan, but the light goes on intermittently after the fan has been on. I have changed the battery and get the same result. We turn the light off and it eventually goes back on. I can't find a remote w/the same description (FAN-11T) and don't know what to do. Any suggestions??

You can buy a universal remote with a new receiver. Sounds like your receiver is bad so replacing the remote will likely not be of much help. Amazon.com: ceiling fan universal remote