Bosch SHX56B05UC/14 not going into high mode

[bbrockwell58]

Model Number

SHX56B05UC/14

Brand

Bosch

Age

More than 10 years

Hello, I have a Bosch SHX56B05UC/14 dishwasher that I have had for almost 20 years. The dishwasher itself runs perfectly fine, but the dishwasher itself does not go into the "hi gear". Everything else works perfectly fine on the unit. It just will not speed up. There is nothing stuck in the motor or anywhere else in the unit. Any suggestions? I would really appreciate advice.