Mike P Owego , NY November 02, 2020 Appliance: Model WRT 518SZFMOO Ice forming in cooling vet from freezer to frig. Clean out drain tube for the freezer and replaced air duct and diffuser. Open air flow to max set to factory settings let run 24 hours works GREAT now. ps; PARTS AND SERVICE VERRY FAST !!! THANK YOU !!!!!! Read More... Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes Tools: Nut Drivers