My remote was working fine until, I replaced the batteries. It will not work it does not control a fan just my light how do I get it to work again?

Check the dip switches, they might have been bumped. Make sure they match the fan.

Make sure the new battery is good.

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