We have missplaced our remote for ceiling fan for our Hampton Bay Fan. Fan will not work. Have another remote for other fan but will not work on this fan. Can I secure a remote that will work fan? Please help

I believe you can get replacements from Home Depot. The codes have to match.
You would probably have to remove fan canopy to see code. Match up to remaining remote's code. May work both fans until you get replacement.

I concur.

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