[I replaced the chin switch for my fan and it runs slower than before. It has 4 wire that is attached to the switch.( blue green black & yellow) Do I have the wires in the worng sequence? Or just get a new switch?:confused:

There are a couple of different switching combinations of those switches, I would look through here:
https://www.askmehelpdesk.com/electrical-lighting/ceiling-fan-troubleshooting-repair-frequently-asked-questions-46738.html

What model do you have?

You can get parts and a wiring diagram from casablancafanrepair.com

Ceiling fan pull chain replacement and repair - Ceiling Fans N More (http://www.ceiling-fans-n-more.com/ceiling-fan-pullchain-replacement-and-repair.php)