There are two pumps in a dishwasher: drain and circulation. Each has a capacitor which can be replaced if it blows. In my 25+ year old dishwasher, this is the only thing that breaks from time to time.

Should be less than 10 bucks including shipping.

Edit: sounds like some models use a solenoid with one pump instead. Open the machine and investigate.

Born in the 90s and have done this plenty of times.