Seems like there is quite a interest in controlling dishwashers with Arduino.

Here is some information for Frigidaire Models FDB421, GDB421 and MDB421 type dishwashers.

• Cycle diagram – Here you will see in detail timing for washing dishes using this machine.
• Wiring diagram – Schematic of all the electrical components and how they are connected.

For how to’s , code and a better description  head over to neonSquirt and check out his awesome project.