Daniel C Huntsville , AL June 18, 2021 Appliance: LG Refrigerator LFX33975ST/02 LG refrigerator error code FF Freezer was not cooling. I removed the food, the drawer, and the back panel. I replaced the freezer fan. This is different from the condenser fan. Took me 10 minutes with a screwdriver. Reinstalled everything,The code went away and the freezer is ice cold again! Read More... Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes Tools: Screwdrivers