Ray U Rochester , NY June 27, 2020 Appliance: Samsung Refrigerator RFG238AARS/XAA Samsung Refrigerator Rfg238aars/Xaa / 0000: Broken caster. How to replace Refrigerator Rear Caster Wheel. New caster and axle the folks at appliance parts pros had it shipped to me in 2 days!!!! Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes