Changed the code from a Craftsman keypad on a Craftsman 1/2 hp (model# 139.53915DM) garage door opener successfully yesterday. All the vehicles and keypad worked fine until this evening. Now only the wired pad works. Everything worked fine before I decided to change the code. The learn button seems to work correctly, but it won't learn from the keypad or work for the vehicles. Clearing all codes still doesn't work. This opener is not that old either. Suggestions welcomed