Carla P Keller , TX July 14, 2015 Appliance: LG Refrigerator LFC25770ST Lg Refrigerator Lfc25770st / Ast2lga: The refrigerator/freezer stopped cooling and the beeping alarm that indicates a door is not closed all the way was beeping. How to replace Refrigerator Door Switch. The alarm beeped for two days before I figured out that the light switch in the freezer was the problem. The light bulb- I thought - had burned out a long time ago, but it was actually frozen to where the light just would not come on. Apparently the freezer door had been left open long enough to thaw out the switch and now the light was working. Problem was that now it wasn't turning off even when the door closed. This was telling the unit that the door was open, hence the continuous beeping for two days, and it stops running if any of the doors are open. Ordered the new switch, watched the video several times at repair clinic.com as they were demonstrating my exact model, and was able to change out the switch and unit working perfectly. I used a flat spackle/putty knife to push in from the front of the switch to move the locking tab back in order to pull down the switch, which I held with a pair of needle nose pliers in order to get a good grip. I also ordered new gaskets/seals for both french doors as they were torn at both the top and bottom and I figured that would be the next problem. Also watched the video from repair clinic (same model) and easily replaced both. Thank you appliance parts pros.com! 12 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes