Emile B Marana , AZ February 16, 2025 Appliance: General Electric Dishwasher GDT695SSJ0SS Ge Dishwasher Gdt695ssj0ss: Had an 815 code which one repair said was the door switch and another said the lower main control board. How to replace Service Machine Control. Replaced the door switch first. Problem still there. Did another diagnosis test and this time got an 815 code. Research showed it was either the door switch or control panel. Ordered the lower main control board, installed it and problem resolved. Do-It-Yourself Rating: Repair Time Estimate: 1-2 hours