"SUD" is a SUDS detect error. This can be an indication of a restriction somewhere in the drainage system, a failed drain pump, you are using too much detergent, or you are using the wrong type of detergent. The following link explains the error in more detail and how to correct:
http://www.fixya.com/support/r3608687-sud_errorIf these preliminary measures do not correct your problem, you may have to replace the drain pump. It does not take much to damage the pump impeller or motor. Since the error code can be generated if the drain cycle exceeds 8 minutes, if the pump is damaged and can't pump at the required volume, the error code will continue to appear until the pump is replaced. If a new drain pump is required, you can purchase one at any of the following websites:
searspartsdirect.com
pcappliancerepair.com
appliancepartspros.com
repairclinic.com
If you need instructions on how to replace a drain pump, the following link explains:
http://www.fixya.com/support/r3574350-replacing_the_drain_pump_in_a_front_load
If you have any questions about this repair, or need additional assistance, please let me know. I hope this helps you.
remove drain hose from back of machine and drain into bucket
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