Linda B Gainesville , FL April 27, 2019 Appliance: General Electric General Electric JKP90SP4SS Ge Oven Jkp90sp4ss / : Turntable roller guide for microwave was broken. How to replace Guide Roller Assembly. I ordered the replacement and Installed it. Easiest repair I’ve ever done! Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes