Charles T Stillman Valley , IL October 09, 2015 Appliance: LG Refrigerator LDC22720ST Lg Refrigerator Ldc22720st / Astclgg: Intermediate refrigerator door light switch. How to replace Refrigerator Door Switch. Ordered door light switch using standard low cost shipping. Was surprised when I received the switch the next day. It was shipped FedEx from a distributor in a nearby town. Carefully pried the old switch out with a putty knife and put the new one in. Bingo the light comes on every time we open the refrigerator now. Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes