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LFX25978ST (ASTCNA0) LG Refrigerator - Instructions

All Instructions for the LFX25978ST
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replace leaking water inlet valve assembly
1. Shut off water to refrigerator. 2. Removed bottom sheet metal cover (6 screws). 3. Removed leaking water inlet valve assembly from refrigerator (1 screw). 4. Remove water inlet tube (loosen nut) and tube back to refrigerator (pull from water valve after remove cotter pin washer). 5. Detach two electrical wire harnesses. 6. Install new water inlet valve assembly to refrigerator (1 screw). 7. Replace both water tubes to water inlet assembly. 8. Re-attach both wiring harnesses. 9. Turn water to refrigerator on. 10. Check for leaks. 11. Re-attach bottom sheet cover (6 screws).
Parts Used:
Water Inlet Valve Assembly
  • Richard from JACKSONVILLE, FL
  • Difficulty Level:
    Really Easy
  • Total Repair Time:
    15 - 30 mins
  • Tools:
    Screw drivers
28 of 47 people found this instruction helpful.
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My nephew accidentally forced the door closed last year, which resulted in the door having to be re closed manually folding back the flap. Ugh!
Unscered 2 screws, unplug electrical connection under the screws, slide her flap into grooves, realign screw holes , and rescrew in. Done.
Parts Used:
PLATE ASSEMBLY,FRONT
  • Tiziana from WARWICK, NY
  • Difficulty Level:
    Really Easy
  • Total Repair Time:
    Less than 15 mins
  • Tools:
    Nutdriver
23 of 36 people found this instruction helpful.
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Broken Door Mullion Spring
Had to buy the entire door mullion because the spring broke, wasn't happy. Got the new part very quickly and it was a new replacement part number. Somewhat tentative. Took it out of the box and looked it over. No spring! Groan! Thought I got the wrong part. Flipped the bottom hinge and it snapped open, no need for a spring! Two screws, disconnect the wire harness, throw away the old, get new, connect the wire harness, connect hinges, put in two screws! Super easy. Watch the video for some pointers along the way.
Parts Used:
PLATE ASSEMBLY,FRONT
  • Maurice from SEATTLE, WA
  • Difficulty Level:
    Really Easy
  • Total Repair Time:
    Less than 15 mins
  • Tools:
    Screw drivers
13 of 17 people found this instruction helpful.
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Replace Thermistor in back of freezer
Turn off power, remove upper and lower drawers (may need to open upper refrigerator doors to remove large freezer bin,) remove drawer supports (upper and lower), remove rear freezer panel (trick is to loosen 4 screws on fan bumpout to get the panel to come free from the freezer side wall), test thermistor with multimeter (should have continuity or near zero resistance across 2 orange fuse wires) before cutting zip ties, cut zip ties holding Thermistor in place, remove old Thermistor, install new Thermistor, install new zip ties, replace rear freezer panel, install upper and lower drawer supports, install drawers, turn on power, should be fixed if error code doesn't return after 6 hours.
Parts Used:
Temperature Sensor
  • Scott from JUPITER, FL
  • Difficulty Level:
    Easy
  • Total Repair Time:
    1- 2 hours
  • Tools:
    Pliers, Screw drivers
12 of 16 people found this instruction helpful.
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Water feed line running from water valve to filter housing was leaking
Shut off water supply. Disconnect main supply line. Remove rear lower panel on back of refrigerator. Remove all tubing clamps on back. Disconnect leaking tubing from water supply valve. Remove water filter and unscrew/remove water filter housing. Replace tubing - connect to water filter housing then to water supply valve. Reconnect filter housing and filter. Reinstall lower panel, then main water supply line, then all tubing clamps. Turn water back on and check for leaks after discarding several glasses of water to fill filter. Job complete!
Parts Used:
Plastic Tube - 5/16 Inch
  • Tom from EASTON, PA
  • Difficulty Level:
    Easy
  • Total Repair Time:
    30 - 60 mins
  • Tools:
    Screw drivers, Wrench (Adjustable)
11 of 18 people found this instruction helpful.
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Changing out the Ice Maker tube
An easy way to get a refrigerator out from the wall is to use a tow strap or 1/2 to 3/4 in. rope. Throw a loop behind refer while keeping both ends in your hands. Let it settle down to the lower half of unit and pull using both hands. Comes right out.
Remove lower panel. Unscrew water valve from cabinet. Remove all tube holders Lay some rags down to catch a little water drainage.
Turn off water supply valve at wall. Unplug Power. Remove filter and filter holder. (one screw).
remove tube from valve by removing plastic C clip. Push plastic ring towards the valve and pull out tube at same time.
With the tube free, remove filter, then mount screw to remove the inside filter holder. When it is out, pull the tube doing the same process as the lower end. Pull tube out and replace with new one putting everything back in reverse order.
Before placing tube holders back on, turn on water to check for leaks.
After turning water back on and plugging in power, push refer back into place.
While I was there, I also replaced the hose from the wall to the refer.
Parts Used:
Plastic Tube - 5/16 Inch
  • HARRY from SPARKS, NV
  • Difficulty Level:
    Really Easy
  • Total Repair Time:
    15 - 30 mins
  • Tools:
    Screw drivers, Wrench (Adjustable)
8 of 12 people found this instruction helpful.
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Broken shelf glass
Just popped the new one in. Followed the online instructions.
Parts Used:
Crisper Shelf Glass
  • george from PARAMUS, NJ
  • Difficulty Level:
    Very Easy
  • Total Repair Time:
    Less than 15 mins
5 of 5 people found this instruction helpful.
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Ice chute would not open.
Removed ice dispenser and display with small screwdriver from front of the fridge. Pried out the whole piece slowly. This exposed the motor that activates the chute. Plugged in the new motor before any removal to verify the motor was the problem. When it worked, removed old and installed new. 3 screws. Piece of cake.
Parts Used:
MOTOR,DC
  • Steve from MUKWONAGO, WI
  • Difficulty Level:
    Easy
  • Total Repair Time:
    30 - 60 mins
  • Tools:
    Screw drivers
11 of 23 people found this instruction helpful.
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Original gasket became deformed creating bad seal.
Soak new gasket in hot water in bathtub to soften while removing old gasket. No tools required, it was a little difficult pulling old gasket out but once you get it started part way out it will come out real easy. By the time you get the old gasket out the new gasket will be warm and easy to get started into the groove it pops into. Starting on back (hinged) side is of door, begin pushing new gasket into groove. Work up and down pushing gasket into place working towards the corners and around to the front side of door. Your all done. This is a job I went into a little nervous thinking I might be calling a service man out to fix, but it turned out to be really easy.
Parts Used:
GASKET ASSEMBLY,DOOR
  • Stanley from Armona, CA
  • Difficulty Level:
    Very Easy
  • Total Repair Time:
    Less than 15 mins
4 of 4 people found this instruction helpful.
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Low water pressure which in turn led to no water and no ice.
Unplugged fridge, shut off water supply disconnected water supply from fridge. Remove screws that hold lower cover on back of fridge, removed screws holding valve assembly to fridge. Disconnect two electrical connections, remove black c-clip on out flow water line, lift fitting on outflow line side and pull water line off. Replace with valve assembly in reverse order
Parts Used:
Water Inlet Valve Assembly
  • Daniel from ABERDEEN, WA
  • Difficulty Level:
    Really Easy
  • Total Repair Time:
    30 - 60 mins
  • Tools:
    Nutdriver, Screw drivers, Wrench set
7 of 13 people found this instruction helpful.
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Broken spring door million torn door gasket
Door million undid 2 screws in plug wire easy no need for directions. Gasket pull off old one fit New in with index finger no tools needed.
Parts Used:
PLATE ASSEMBLY,FRONT GASKET ASSEMBLY,DOOR
  • GUY from HECTOR, NY
  • Difficulty Level:
    Very Easy
  • Total Repair Time:
    Less than 15 mins
  • Tools:
    Screw drivers
5 of 7 people found this instruction helpful.
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Getting the ice maker support bracket back into position on the door.
I followed the repair video provided by your website. Overall, very accurate. Only problem was finding the exact fit for the ice maker mounting bracket. In the end, it was my inexperience refitting the unit into the door slot.
Parts Used:
Ice maker Assembly Kit
  • David from HARRISBURG, PA
  • Difficulty Level:
    A Bit Difficult
  • Total Repair Time:
    30 - 60 mins
  • Tools:
    Screw drivers
4 of 4 people found this instruction helpful.
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Spring on door Mullion broke
Watched a YouTube video on how to replace the door flipper (mullion). Very easy to unscrew the plate and disconnect the electrical circuit. Then gently slide up the flipper and replace with a new one.
Parts Used:
PLATE ASSEMBLY,FRONT
  • Patrick from AUGUSTA, WV
  • Difficulty Level:
    Really Easy
  • Total Repair Time:
    Less than 15 mins
  • Tools:
    Screw drivers
3 of 3 people found this instruction helpful.
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Filter housing leaking
Removed old filter head, installed the new head
Parts Used:
FILTER ASSEMBLY,HEAD
  • Larry from CLEMMONS, NC
  • Difficulty Level:
    Really Easy
  • Total Repair Time:
    30 - 60 mins
3 of 3 people found this instruction helpful.
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Fridge waterline for ice maker / door water
The heavy work is moving the fridge, then take off the lower plans. Use a bowel or cup for screws and the water line connector spacers so you don't loos them.
undo connections holding water line, including the bottom brakes for the solenoid. Reuse the spring around the lower waterline to prevent external wear on the line.

NOTE: remove the waterline connector spacers and save!
NOTE: you must compress (not pull) the connect to then pull the waterline out of the connectors.
NOTE: You must also remove the water filter and housing inside the fridge but this is easy.
MOTE: Test the line for leaks by turning on the water and then using the door water. The filter will need to refill so it may take a minute before water comes up. This line only have pressure when the door water is used or the ice maker needs to make ice.


After replacing the line, test the line for leaks by using the door water so the solenoid fills the lines
Parts Used:
Plastic Tube - 5/16 Inch
  • Todd from MARS HILL, NC
  • Difficulty Level:
    Really Easy
  • Total Repair Time:
    Less than 15 mins
  • Tools:
    Screw drivers
3 of 4 people found this instruction helpful.
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All Instructions for the LFX25978ST
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