Product review (5 stars): Fixed our SUD and F35 error messages
Our Whirlpool Duet Steam starting giving us SUD and F35 errors after we accidentally bought a non-HE detergent.  We had used quite a bit of it before we realized our mistake.  Once the errors started, they never stopped.  At first, we assumed they were legitimate because of the detergent, but after months of troublesome errors, taking apart the washer to clean internal components, checking and cleaning the drain filter, and everything else under the sun, we decided to spend the money to replace this part.  My incredibly handsome, intelligent, and supremely talented husband installed the switch and the washer fired up and ran without an error on the first try (something that hasn't happened for months now).  If anything changes, I will post an updated review, but for now, I am so happy to have my washer running again!