Video - How to Guide for Using the S40 Hi, I’m the S40 Brewing System! Here’s How to Assemble and Use Me. See written instructions here. Check out our YouTube Channel here. Related articles Instructions - S40 How to use S40 Controller - Modes & Functions My S40 controller has an error code on it - What does it mean? Video - Key Features of the S40 Video - How to Guide for Using the G40