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LFC21770ST ((AST3LGA)) LG Refrigerator - Instructions

All Instructions for the LFC21770ST
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icemaker stopped working
This is bottom drawer type frige. Icemaker is inside (not in the door) and hard to reach. I first tested the solenoids by disconnecting them and using a test cord, energized them independent of the frige wiring. They worked ok. Note: this frige has (2) solenoids going to the icemaker. And it has (3) solenoids serving the water dispenser. The icemaker solenoids are wired in parallel. I removed the icemaker by removing (1) screw from the bottom and loosening (2) on the top. Then removed icemaker as a complete unit disconnecting the wire connector at the same time. On the bench I tested the icemaker to verify it was defective. The wire harness has a 10 amp fuse in the black wire (hot wire). `The fuse was blown. This was sufficient to indicate the icemaker is shot. I did however, do some other tests. Cold resistance of the mold heater was 72 ohms. The timer motor was 4000 ohms. These measurements should be ok. I then activated the icemaker with a test cord, bypassing the blown fuse. The unit cycled one complete rotation then stopped. The mold heater worked. I tested the amp draw on the mold heater and it was only .1 amps. I should be a about .8 amps. I then cycled it again and then the timer motor began to sizzle and smell. Then it smoked and stopped mid-rotation. I then purchased a new icemaker. I believe the mold heater was going bad over time as this unit made ice but very slowly. This put extra strain on the motor as the mold was not releasing quickly. This damaged the motor causing it to fail.
Parts Used:
Ice Maker Assembly,Kit
  • Norris from Telford, PA
  • Difficulty Level:
    A Bit Difficult
  • Total Repair Time:
    30 - 60 mins
  • Tools:
    Screw drivers
3 of 3 people found this instruction helpful.
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The part did not fit
Like the customer who put a review on your site before me, I was unable to complete the repair because the inlet tube did not fit my refrigerator. I was hoping to speak to someone regarding this issue.
Parts Used:
Tube,Plastic Tube,Inlet
  • Stacy from ST AUGUSTINE, FL
  • Difficulty Level:
    Really Easy
  • Total Repair Time:
    30 - 60 mins
2 of 2 people found this instruction helpful.
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Butter bin door had broken
Simple replace of door, fits perfectly
Parts Used:
Door Bin Cover
  • Mary from DEL MAR, CA
  • Difficulty Level:
    Really Easy
  • Total Repair Time:
    Less than 15 mins
1 person found this instruction helpful.
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The plastic cover on the butter area had broken.
Just had to slip the 2 pegs into the existing holes.
Parts Used:
Door Bin Cover
  • Elizabeth from TALLAHASSEE, FL
  • Difficulty Level:
    Really Easy
  • Total Repair Time:
    Less than 15 mins
1 person found this instruction helpful.
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Seal was damaged
Have your wonderful Grandson do the repair work.
Parts Used:
Door Gasket - Right Side
  • Billy from AUGUSTA, GA
  • Difficulty Level:
    Really Easy
  • Total Repair Time:
    30 - 60 mins
  • Tools:
    Pliers, Screw drivers
1 person found this instruction helpful.
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Broken plastic/glass
Now that you have to buy a complete assembly that includes the drawer in the classy window it's very simple to replace however you buying parts that you don't need simply because G no longer makes the window. Which I find rather odd being as though that they make the whole assembly think and sell windows by themselves for less than 2/3 of what I spent through the whole assembly
Parts Used:
Door Bin Cover
  • Bill from MURRIETA, CA
  • Difficulty Level:
    Very Easy
  • Total Repair Time:
    Less than 15 mins
1 person found this instruction helpful.
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Wrong parts sent twice. One of the parts was a substitute 2" too long
Unable to complete repair, had to send parts back
Part should have been PS11732074, but got PS11732704- wrong part
This was a substitute part and was 2" too long

Waiting for refund on this part. It cost me $14.50 to return it by UPS!!!
Parts Used:
GUIDE ASSEMBLY,RAIL
  • BRENT from RENO, NV
  • Difficulty Level:
    Very Difficult
  • Total Repair Time:
    30 - 60 mins
1 person found this instruction helpful.
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Part was delivered broken
The past I ordered was broken upon delivery. I asked for a replacement and was refunded the charge. Tried to contact you but "due to covid" you aren't taking calls. Net result: I ordered the part from another source, got it, installed easily. Won't use you again.
Parts Used:
Door Bin Cover
  • Karen from GEORGETOWN, TX
  • Difficulty Level:
    Very Difficult
  • Total Repair Time:
    More than 2 hours
1 person found this instruction helpful.
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Broken door gasket retainer
Go to this site on You Tube to watch the "how to" replace the gasket retainer. The retainer I needed did not come with brackets or the cam you will need. You will need transfer them from the old retainer to the new one. Not hard, just be mindful of position of the items you remove to put them back in place the same way. A metal rod holds the brackets and spring in place with a screw on one end to prevent rod from sliding off retainer. The cam has a screw that holds it in place, use from old retainer. If the old cam is not broken use the one from the old retainer. It is not hard and you will save $$$ that you would pay an appliance repair company.
Parts Used:
Holder Assembly,Gasket
  • Claude from SAN DIEGO, CA
  • Difficulty Level:
    Easy
  • Total Repair Time:
    15 - 30 mins
  • Tools:
    Screw drivers
1 of 2 people found this instruction helpful.
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replace hand screw
unfortunately my fridge stopped working. I purchased another but wanted to try and repair the old one. when ew one arrived, the old one was supposed to be put in garage but instead was hauled away. Had delivery return next day but they had as already removed and lost the handle screw for the bottom freezer and the screw that holds handle in place. ordered the handle screw and picked up the nut. very simple to install the screw and put handle back on.
Parts Used:
Handle Screw
  • dorothy from SALISBURY, MD
  • Difficulty Level:
    Very Easy
  • Total Repair Time:
    Less than 15 mins
  • Tools:
    Screw drivers
1 of 3 people found this instruction helpful.
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Right door cam broken
Remove door seal and cam shaft (one piece). Remove broken cam by removing Philips head screw. Replace broken cam with new cam and reassemble. The actual repair took about 15 minutes however the majority of time was spent figuring out that the door seal and cam shaft had to be removed, no tools required.
Parts Used:
Cam,Shaft Cam,Shaft
  • Gary from Goose Creek, SC
  • Difficulty Level:
    Easy
  • Total Repair Time:
    30 - 60 mins
  • Tools:
    Screw drivers
0 of 1 people found this instruction helpful.
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icemaker quit
i first replaced valve as the water line hung up and broke the valve as i was moving fridge out,be careful about doing this,now i need to replace icemaker as its not working,ps it wasnt the water valve ,i broke it,so first replaced it now icemaker ,lg stinks for the 2 yrs icemaker has worked,my previous kenmore icemaker thru door worked for 23 yrs and was working the day i replaced it, the new electronic appliances are nice when they work!!!>Marvin
Parts Used:
Valve,Water
  • marvin from montgomery, TX
  • Difficulty Level:
    Really Easy
  • Total Repair Time:
    Less than 15 mins
  • Tools:
    Screw drivers, Wrench (Adjustable)
10 of 31 people found this instruction helpful.
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broken
removed 1 screw and replaced
Parts Used:
Cam,Shaft Cam,Shaft
  • william from mashpee, MA
  • Difficulty Level:
    Really Easy
  • Total Repair Time:
    Less than 15 mins
  • Tools:
    Screw drivers
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broken glass shelf
open the box cleaned the glass put it in the refrigerator
Parts Used:
Shelf,Glass
  • JOHN from LINCOLN, CA
  • Difficulty Level:
    Really Easy
  • Total Repair Time:
    Less than 15 mins
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Plastic door latch/ cam shaft broke on left side door
Removed white plastic trim and installed new latch / cam shaft
Parts Used:
Cam,Shaft Cam,Shaft
  • Reginald A. Green from Pelham, AL
  • Difficulty Level:
    Really Easy
  • Total Repair Time:
    Less than 15 mins
  • Tools:
    Screw drivers
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All Instructions for the LFC21770ST
1 - 15 of 16