I have a duet washer that keeps giving me error code F 30. Does it have to do with sensor and how can I fix it.

Here are some manuals: https://dl.dropboxusercontent.com/u/8010163/Whirlpool_Duet%20Job%20Aid.pdf
https://dl.dropboxusercontent.com/u/8010163/Whirlpool-Kenmore%20washers.zip

Fault Codes: Appliance Fault Codes - AppliancePartsPros.com (http://www.appliancepartspros.com/repair-help/appliance-fault-codes.html#Whirlpool%20Duet%20Front%20Loading%20Ga s%20and%20Electric%20Dryer%20Fault%20Codes)