LFC21770ST (AST3LGA) LG Refrigerator - Overview

Sections of the LFC21770ST

[Viewing 4 of 4]
Keep searches simple, eg. "belt" or "pump".
Door Stopper – Part Number: 4620JJ2009A
Door Stopper
★★★★★
★★★★★
(8)
PartSelect #: PS3523083
Manufacturer #: 4620JJ2009A
$18.96
  In Stock
Handle Screw – Part Number: MJB63190001
Handle Screw
★★★★★
★★★★★
(2)
PartSelect #: PS8752913
Manufacturer #: MJB63190001
This handle screw, also known as a mounting bolt, is a mounting screw to help secure the door handle to your refrigerator door. If your handle is loose, you may just need to tighten the screw. If your...
$18.96
  In Stock
Door Shelf Bin – Part Number: AAP73871501
Door Shelf Bin
PartSelect #: PS8748031
Manufacturer #: AAP73871501
Sold individually.
$74.37
  In Stock
Ice Maker Assembly – Part Number: 5989JA0002N
Ice Maker Assembly
PartSelect #: PS3528723
Manufacturer #: 5989JA0002N
$399.08
  In Stock
Refrigerator Camshaft – Part Number: 4430JJ2004A
Refrigerator Camshaft
PartSelect #: PS3522957
Manufacturer #: 4430JJ2004A
$18.96
  In Stock
Cam,Shaft – Part Number: 4430JJ2004B
Cam,Shaft
PartSelect #: PS3522958
Manufacturer #: 4430JJ2004B
$14.03
  Special Order
Freezer Door Gasket - Gray – Part Number: MDS64172919
Freezer Door Gasket - Gray
★★★★★
★★★★★
(1)
PartSelect #: PS8752589
Manufacturer #: MDS64172919
This door gasket is used to seal the freezer door when closed.
$87.89
  In Stock
Door Bin Cover – Part Number: MAN38143001
Door Bin Cover
PartSelect #: PS3534504
Manufacturer #: MAN38143001
Stay organized and worry-free about your fridge contents getting jostled around or falling with the LG Door Bin Cover. This handy addition is designed specifically for your LG refrigerator, and it wor...
  No Longer Available
Ring – Part Number: 4350JA3005B
Ring
PartSelect #: PS3522907
Manufacturer #: 4350JA3005B
$18.96
  In Stock
Handle Assembly,Freezer – Part Number: AED37133117
Handle Assembly,Freezer
PartSelect #: PS3532192
Manufacturer #: AED37133117
$157.94
  In Stock
Bush – Part Number: J326-00012A
Bush
PartSelect #: PS3534430
Manufacturer #: J326-00012A
$16.43
  In Stock
Ice Gear – Part Number: 4470JA2008A
Ice Gear
PartSelect #: PS3522982
Manufacturer #: 4470JA2008A
$18.96
  In Stock

Questions And Answers for LFC21770ST

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Common Symptoms of the LFC21770ST

[Viewing 4 of 4]
Door won’t open or close
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Leaking
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Ice maker not making ice
Fixed by
these parts
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Frost buildup
Fixed by
these parts
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Keep searches simple. Use keywords, e.g. "leaking", "pump", "broken" or "fit".
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
  • Norris from Telford, PA
  • Difficulty Level:
    A Bit Difficult
  • Total Repair Time:
    30 - 60 mins
  • Tools:
    Screw drivers
4 of 5 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 Refrigerator Inlet Tube
  • 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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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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