Michael A Henderson , NV April 19, 2015 Appliance: General Electric Dishwasher GLD4900P00BB Ge Dishwasher Gld4900p00bb: Flashing selection light: i think it fixed the problem by changing out the heating element. How to replace Dishwasher Heating Element. Found a service manual that is close enough to my GE dishwasher. Service Manual for GE Dishwasher-EDW4000 was found on the following webpage. http://www.applianceaid.com/pdf/serv-man-EDW4000.pdf Gives enough information to test out the dishwasher. Read it, check out Factory Test Mode. GE should have given this out as a normal User Manual. The usual user manual lack anything to help troubleshoot a problem. 5 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes