Robert C Middletown , CT September 23, 2014 Appliance: Maytag Refrigerator RTT1900EAE Maytag Refrigerator Rtt1900eae: Cracked plastic end caps on refrigerator door (shelf bars fall off). How to replace Door Shelf Support. Remove broken end caps and replace with new ones. I did use a screwdriver to push the second holding tab into the slot, then I pushed the shelf bar up (or down) to match door contour. 2 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes