Richard L Dansville , NY March 24, 2019 Appliance: Samsung Refrigerator RF217ABWP/XAA Samsung Refrigerator Rf217abwp/Xaa / : Freezer temperature low far below setpoint. How to replace Pba Main;Nw2 Fdr,Assy. Replaced thermocouple - no fix. Finally replaced main circuit board. Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes