Bosch dishwasher, 500 series, used, ~ 10 years old, free
Model No. SHP865WD5N/11
stainless exterior and tub, LxWxH 23 3/4" x 23 9/16" x 33 7/8"
Runs, washes well, but pump periodically turns on even when appliance is turned off
I am not enough of an engineer to identify and replace the "part"