Dishwashers are very easy to disassemble, but not easy to move around unless you have a truck. Also, only few parts are worth the effort to be removed and sold.
If you have one at home and want to get rid of it, it is better to spend an hour on it rather than sell it as a whole.
In terms of metal to scrap, you can find different types in a dishwasher, including brass, copper, stainless steel and steel.
After ranks and trays, the motor is the biggest money make on a dishwasher. It doesn’t have to be functional since you are just hunting for scrapper copper – so you can force as much as you can to take it down.
You can bring the motor to the scrap yard as it is or you can remove by yourself the copper coil. Removing the copper coil takes some time, and only you can determine if it is worth your time to remove the copper or to sell the motor as is.
After the motor and copper coil, go for the wiring. Cut off any wires you can see with wire cutters or dykes.
The heating element is usually located in the bottom of the dishwasher, above the motor. It should be very obvious to you. You can cut this out with bolt cutters. The heating element will usually be a nickel alloy so make sure you get paid for a nickel alloy price and not a shred price.