Alexander V Framingham , MA May 22, 2019 Appliance: LG Refrigerator LFC21770ST Refrigerator was not cooling. Replace the TDS (Time Delay Starter) and OLP (Over-load Protection) components. Read More... Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes Tools: Pliers, Screwdrivers, Socket Set, Wrench Set