My ceiling fan and light are hooked up to a remote and there is no other switch in the house that can control it. I have the same fan and light in two rooms. All of a sudden the light and fans are dimming then getting bright and constantly cahnging. Any ideas on what to do??

Try changing the address on the remote and the receiver. Open the canopy on the fan and change the dip switches to a different on and off pattern. Open the remote and set those switches to the same pattern. Hope this helps.

I agree with trying resetting the frequency via the dip switches:

Ceiling fan remote controls - help and FAQ- Ceiling Fans N More