Mark C Rocklin , CA December 01, 2023 Appliance: General Electric Dishwasher GDT655SSJ0SS Ge Dishwasher Gdt655ssj0ss: The dishwasher would not start a cycle. Blinking orange light and 3 beeps. 815 error code. How to replace Service Machine Control. By changing out the control board, the unit now works like new. Replacement of the control board was simple and completed easily with a few simple tools. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes