Jeffrey O Anthem , AZ April 22, 2016 Appliance: General Electric General Electric CSA1201RSS02 Ge Microwave Csa1201rss02 / : Encoder board rotary control not functioning. How to replace Encoder Board. Took off the control panel dissected all the boards to access the encoder board and replaced it easily. All is now working again perfectly. Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes