I really hope someone can help me..

I have a casablanca fan the pull switch stopped working so I went to Home Depot to buy a replacement.. I installed the wire exactly how they came out.. now it runs on only hi speed.
I have a black wire, yellow, pink & grey. I returned the switch and tried another one, that one worked only on slow, so I returned that one, and now we are back to hi speed.

Can anyone help me?

Thanks
Debbie

Are you getting a Casablanca replacement part or is this a universal switch. What happens when you pull the chain when its on high?

I am using a westinghouse 4 wire 3 speed replacement from Home Depot, when I install it ithe fan stays on High, I gets a little slower when I pull the chain, but doesn't shut off. Thank You

Get the correct replacement pullchain. From Casablanca Fan Repair or CeilingFanParts.com Home Then wire it exactly like the old one.

Ceiling fan pull chain replacement and repair - Ceiling Fans N More