This is a simple, replacement in kind video demonstrating the replacement of a 3-way slide-dimmer switch that failed in my home in Costa Rica.
Let me know in the comments if you have any questions on this, or any other electrical problem you may be dealing with. Pura Vida!
Here's the link to my 3-way switch video that I mentioned here.
https://www.youtube.com/watch?v=xBEi_fYDMJw