Here is a selection of Master Samurai Tech's webinar recordings on dishwashers that will build on what you learned in Core.
Note that you need to have an active Appliantology premium tech membership to view them. Your MST Student or MST Alumni membership will give you access.
Master Samurai Tech Dishwasher Repair Videos
Reading the cycle sequence chart on Whirlpool GWS platform dishwashers
Troubleshooting Multiple Control Board Systems, Example: Samsung Dishwasher
Troubleshooting a Whirlpool Dishwasher Wash Motor Problem
Fixing a Whirlpool - Kitchenaid Dishwasher with a Blinking Clean Light
Fixing the LE Error Code in an LG Dishwasher
Troubleshooting Workshop: Maytag Dishwasher DOA
Troubleshooting a Bosch Dishwasher No Heat Problem Using the Schematic and Live Tests
Transistor Switches in Electrolux Dishwashers
Entering Program Mode and Running the Test Program in a Bosch Dishwasher