LG Bottom Freezer Refrigerator model LFX25960ST.
We moved the frig into this house & hooked it up. It worked fine overnight. Later the next morning the refrigerator quit working. The freezer is still working fine. We've tried unplugging and re-plugging the cord. It will work from a few minutes, but then stops working, even the inside refrigerator light goes out (nope it's not the bulb). The alarm will continue to sound until we turn the alarm off (yep, the doors are closed). Any help will be appreciated.
Glenn & Cathie
Sounds like when you moved it you created an air lock, when moving fridges etc. should always leave for 24 hrs to settle before plugging in.... , no guarantee but try laying it down and leaving overnight then stand it up again and leave for at least 24 hrs for the refrigerant to try and sort itself out. UNPLUGGED from mains of course... good luck
SOURCE: LG refrigerator isn't cold but bottom freezer is freezing the food
ff is fresh food may be the ff thermisor but i would first check the freezer back wall is it frosted up can you hear the fan in the freezer blowing the air up to the ff section
SOURCE: LG Bottom freezer refrigerator LRFD25850ST
You will have to buy a new board to solve it.
Sgt 48
SOURCE: Refrigerator Lights Stayed on, Melted Plastic and Stopped Cooling
The problem is with the main motherboard. It needs to be replaced along with the light socekt assembly. The new assembly has a temperature sensor that will cutoff power to the lights if it happens again.
Main board 6871jb1423n
Socket assembly 6621jk2003b
SOURCE: door open alarm will not shut off
Try pressing the cut off button manually while the door is open. It sounds like the switch may be bad.
SOURCE: Interior light bulbs stay on?
There is a switch on the inside of your frige that has gone bad. The switch is a slide type switch so when you open or close the door it makes the switch slide in and out, making the light come on and off. You need to write down the make and model # of your refrigerator and order a new switch either from the manufacturer or from the place you bought it. Once you have the new switch, unplug the refrigerator, take a flat head screw driver and gently pry the switch from the interior face, pull the two wires off and replace the old switch with the new. The switch is very inexpensive and very easy to replace. Calling a service technician out to do this could cost you more than you expect. If you are not very "mechanicaly enclinded" then just order the switch and have a brother, neihbor, or someone that is mechanicaly savy come over and fix it for you. It should not even take 5 minutes. ;-)
troubleshooting FAQS on line) that the lights in the newer LFX25960 french door/bottom freezer refrigerator will shut off after a period of time to prevent overheating and melting the plastic housing, I have heard of this problem enough times to worry about it. So I replaced the two 60 watt bulbs in my refrigerator with 25 watt appliance bulbs just in case. They provide more than enough light and do not get as hot when on. It took a while to find them. They are made by Philips and were at Home Depot but not always in stock. 
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I had the same problem. I was told by LG that the freezer fan was frozen. (the fan circulates cold air from the freezer into the fridge area). I was told to unplug the unit for 6 hours to let the fan defrost. This did not work, and the fan had to be replaced.
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