2000 Nissan Pathfinder power lock question? Need help

[kingturbo]

The factory keyless entry has stopped working. I checked the fuses located near your left knee. I had found that the elecB fuse to be blown. I replaced it and things were good for a day. The same thing happened and the keyless entry was not working. I then looked at the same(elecB) fuse and this time it was not blown. What else poped or shorted out. I would like to hear some ideas. My wife drives the car everyday with the two kids. The only way to lock the car is with the key on or car running hit the lock button and then open and lock the doors manually.