Donald C Salisbury , MD August 18, 2025 Appliance: General Electric Dishwasher GDT655SBL3TS Ge Dishwasher Gdt655sbl3ts: Ge dishwasher user interface (ui) dark and unresponsive appliance parts pros helped in determining test pin outputs and main board error codes. How to replace Service Machine Control. Replaced Main Board and the dishwasher has been working fine for two weeks now. Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes