Joseph M Kulpmont , PA March 15, 2015 Appliance: Frigidaire Dishwasher FDR252RBB0 Frigidaire Dishwasher Fdr252rbb0: Frigidaire dishwasher not draining completely. How to replace Macerator. Replaced necessary parts, first checking trouble shooting. The most useful was the schematic of parts on applicable shown on Appliancepartspro site. 3 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes