As I suspect you know by now, "SUD" is a Suds Detect error code. The washer will not complete any cycle as long as the error code is present. The following link explains the error and some potential causes:http://www.fixya.com/support/r3608687-sud_error
The number one cause of the error comes from using too much, or the wrong type, of detergent. You are required to use High Efficiency (HE) detergent with these washers because the concentration is formulated for HE washers that use small amounts of water. Using the wrong type of detergent can also void any manufacturer warranty you may have.
NOTE: HE detergent does not have a lot of suds, which often confuses consumers into thinking they aren't using enough detergent. With HE washers little to no suds if normal and preferred.
If too much deteregent has been used, using the RINSE/SPIN is recommended to flush the tub, drain pump and lines. IMPORTANT: It can sometimes take several cycles to clear.
Secondary causes can come from something restricting the drainage system. Most notably, something lodged in the drain pump and/or drain hose(s). I've included a follow-on link that explains how to check the drain pump reservior if required.Each one of these washers come with a technical data sheet inside. To access, you will need to remove the lower toe panel under the door. The access screws are located under the bottom front edge of the panel. You may have to prop the two front feet of the washer up for better access ( a 2x4 works well for this). With the screws removed, the panel should drop down, then come off. If the tech sheet isn't directly behind the panel, it will be affixed to one of the interior cabinet walls. The tech sheet lists all error code definitions, troubleshooting data, diagnostics procedures and wiring diagrams. I mention the tech sheet because you may need it from time to time to troubleshoot your washer.Read through the information provided and let me know if you have any further questions. I hope this can help you.