LG LFX33975
✓ VERIFIEDRefrigerator
What We Know
The LFX33975 is a 36-inch LG French-door refrigerator (32.5 cu ft). The headline is LoDecibel Quiet Operation, LG's quiet-running package. Sold in stainless steel.
Status
Discontinued
Capacity
32.5 cu ft
22 fridge · 10.5 freezer
Finishes
Stainless Steel (LFX33975ST)
Width
35.75 in
Height
70.25 in
Wi-Fi
No
Energy Star
Yes
Parts & Labor
1 year parts and labor
1 year internal/functional parts and labor
LoDecibel™ Quiet Operation
LG's quiet-running package; the dB figure appears under Performance when LG publishes one.
SmartDiagnosis™
Hold your phone to the control panel and the app reads the fault code for you.
Glide N’ Serve™ Drawer
EasyReach™ Bins
DuraBase™ Solid Drawer Base
Slim SpacePlus™ Ice System
Smart Pull™ Freezer Handle
3-Tier Organization™ Freezer
Slim SpacePlus™
Spill Protector™ Tempered Glass
Smart Cooling Plus System
Linear Compressor
Dual Evaporator
3-Tier Organization
Dual Evaporators
Multi-Air Flow Cooling
Tall Ice & Water Dispenser
Recalls
None on file
verified Sep 2026
Written from the record's fields, not from reviews. Covers the LFX33975 generation (LFX33975ST) only. Sources: LG spec sheet · LG warranty
Expected Lifespan
11–13 years
ApplianceEdge estimate · LG french-door
Parts & Labor
1 year parts and labor
1 year internal/functional parts and labor
Owner's Manual
gscs-b2c.lge.com
Warranty Statement
lg.com
Water Filter
LT700P
Expected lifespan is ApplianceEdge's estimate, formed from category lifetime data, service records and warranty terms. It is not a prediction for your unit and not a manufacturer figure — with proper care and maintenance, many appliances last well beyond this range. Everything else on this tab is written from the record's fields. Sources: LG warranty
What to Expect
LG runs its own factory service in most major metros, with authorized local servicers everywhere else. Genuine parts go through Encompass Parts Distribution and LG's own store, so independents can get them. Before paying for a compressor repair, check the 10-year compressor term — it's parts only, but it's real. Full warranty terms are in Owning It.
Recalls
None on file
verified Sep 2026
Known Issues
None on file
verified Sep 2026
Parts Status
Parts available · verified Oct 2026
Factory Service
lg.com
Authorized Servicers
lg.com
No code matches
Meaning
Problem with the compressor relay.
22 · 33
Problem with the compressor relay.
Meaning
Gap in the door or an object restricting door closure.
What to do
Check for an object blocking the door and that the door closes fully.
67
Gap in the door or an object restricting door closure.
Check for an object blocking the door and that the door closes fully.
Meaning
Display test — unit functioning properly.
What to do
None.
88
Display test — unit functioning properly.
None.
Meaning
Auto-door motor does not reach the maximum/home position within 5 seconds.
Ad
Auto-door motor does not reach the maximum/home position within 5 seconds.
Meaning
Auto-door motor reed switch in the open state.
AS
Auto-door motor reed switch in the open state.
Meaning
Communication error between the LCD display and the dispenser.
C1
Communication error between the LCD display and the dispenser.
Meaning
Condenser fan motor error — fan that cools the compressor compartment not operating (feedback signal < 65 seconds during fan operation).
What to do
Unplug the power cord (or trip the breaker), wait about 5 minutes, restore power. Monitor whether the code reappears after ~3 hours.
CF
Condenser fan motor error — fan that cools the compressor compartment not operating (feedback signal < 65 seconds during fan operation).
Unplug the power cord (or trip the breaker), wait about 5 minutes, restore power. Monitor whether the code reappears after ~3 hours.
Meaning
High-side refrigerant leak / sealed-system fault (faulty valve, abnormal sensor readings).
CH
High-side refrigerant leak / sealed-system fault (faulty valve, abnormal sensor readings).
Meaning
Low-side refrigerant leak / sealed-system fault.
CL
Low-side refrigerant leak / sealed-system fault.
Meaning
Communication error between the main control board and the display PCB (unstable power, wire disconnection or component failure).
What to do
Unplug the power cord (or trip the breaker), wait about 5 minutes, restore power.
CO
Communication error between the main control board and the display PCB (unstable power, wire disconnection or component failure).
Unplug the power cord (or trip the breaker), wait about 5 minutes, restore power.
Meaning
Defrost failure — the defrost cycle did not raise temperature sufficiently (LG: > 1 hour / 80 minutes). Causes named by LG: ice accumulation, blocked drain, thermal fuse, heater disconnection, main PCB.
What to do
Unplug for ~2 minutes to reset (code list). If ice is present: Unplug the unit, open the doors fully and let ice melt (LG: 8+ hours on the code list; 1 day in summer / 3 days in winter on the FF/dH articles); let water drain to the drain tray. Move food if spoilage is a concern.
dH
Defrost failure — the defrost cycle did not raise temperature sufficiently (LG: > 1 hour / 80 minutes). Causes named by LG: ice accumulation, blocked drain, thermal fuse, heater disconnection, main PCB.
Unplug for ~2 minutes to reset (code list). If ice is present: Unplug the unit, open the doors fully and let ice melt (LG: 8+ hours on the code list; 1 day in summer / 3 days in winter on the FF/dH articles); let water drain to the drain tray. Move food if spoilage is a concern.
Meaning
Door motor does not reach the maximum/home position within 5 seconds.
dr
Door motor does not reach the maximum/home position within 5 seconds.
Meaning
Defrost sensor short or disconnection; evaporator ice blockage risk.
dS
Defrost sensor short or disconnection; evaporator ice blockage risk.
Meaning
Freezer-compartment ice maker sensor failure.
EID
Freezer-compartment ice maker sensor failure.
Meaning
Freezer-compartment ice maker assembly failure.
EIU
Freezer-compartment ice maker assembly failure.
Meaning
Freezer fan motor error — no signal from the freezer fan motor; frost/ice buildup can lock the fan.
What to do
Unplug the power cord (or trip the breaker), wait about 5 minutes, restore power. If frost is suspected: Unplug the unit, open the doors fully and let ice melt (LG: 8+ hours on the code list; 1 day in summer / 3 days in winter on the FF/dH articles); let water drain to the drain tray. Move food if spoilage is a concern.
FF
Freezer fan motor error — no signal from the freezer fan motor; frost/ice buildup can lock the fan.
Unplug the power cord (or trip the breaker), wait about 5 minutes, restore power. If frost is suspected: Unplug the unit, open the doors fully and let ice melt (LG: 8+ hours on the code list; 1 day in summer / 3 days in winter on the FF/dH articles); let water drain to the drain tray. Move food if spoilage is a concern.
Meaning
Freezer temperature sensor short or disconnection.
FS
Freezer temperature sensor short or disconnection.
Meaning
Cycle error — freezer temperature does not fall below 3.5°C within 10 minutes.
What to do
Unplug the power cord (or trip the breaker), wait about 5 minutes, restore power. Check temperature settings and door seals.
FU
Cycle error — freezer temperature does not fall below 3.5°C within 10 minutes.
Unplug the power cord (or trip the breaker), wait about 5 minutes, restore power. Check temperature settings and door seals.
Meaning
Water flow sensor error or low water pressure (closed tap, kinked hose, pressure).
What to do
Check the water tap is open, the hose is not kinked, and increase water pressure.
gF
Water flow sensor error or low water pressure (closed tap, kinked hose, pressure).
Check the water tap is open, the hose is not kinked, and increase water pressure.
Meaning
High ambient temperature warning (above +50°C); performance may be affected.
What to do
Not a fault; performance warning.
HI
High ambient temperature warning (above +50°C); performance may be affected.
Not a fault; performance warning.
Meaning
Humidity sensor short or disconnection.
HS
Humidity sensor short or disconnection.
Meaning
Ice maker fan error — blockage or fan fault; frost buildup possible.
What to do
Unplug the unit, open the doors fully and let ice melt (LG: 8+ hours on the code list; 1 day in summer / 3 days in winter on the FF/dH articles); let water drain to the drain tray. Move food if spoilage is a concern.
IF
Ice maker fan error — blockage or fan fault; frost buildup possible.
Unplug the unit, open the doors fully and let ice melt (LG: 8+ hours on the code list; 1 day in summer / 3 days in winter on the FF/dH articles); let water drain to the drain tray. Move food if spoilage is a concern.
Meaning
Ice maker sensor error / ice maker fan motor or sensor disconnection; ice is no longer dispensed.
IS
Ice maker sensor error / ice maker fan motor or sensor disconnection; ice is no longer dispensed.
Meaning
Ice maker motor error / defect in the ice maker.
It
Ice maker motor error / defect in the ice maker.
Meaning
Low ambient temperature warning (below −10°C); performance may be affected.
What to do
Not a fault; performance warning.
L0
Low ambient temperature warning (below −10°C); performance may be affected.
Not a fault; performance warning.
Meaning
Wi-Fi modem or communication error.
Od
Wi-Fi modem or communication error.
Meaning
Display off / demo (showroom) mode — cooling is disabled.
What to do
Press and hold REFRIGERATOR and ICE PLUS for 5 seconds (button pair varies by model).
OF F
Display off / demo (showroom) mode — cooling is disabled.
Press and hold REFRIGERATOR and ICE PLUS for 5 seconds (button pair varies by model).
Meaning
Refrigerator temperature sensor (R2, lower) fault.
r2
Refrigerator temperature sensor (R2, lower) fault.
Meaning
Refrigerator compartment fan motor error — fan motor not operating normally; frost buildup possible.
What to do
Unplug the power cord (or trip the breaker), wait about 5 minutes, restore power. If frost is suspected: Unplug the unit, open the doors fully and let ice melt (LG: 8+ hours on the code list; 1 day in summer / 3 days in winter on the FF/dH articles); let water drain to the drain tray. Move food if spoilage is a concern.
rF
Refrigerator compartment fan motor error — fan motor not operating normally; frost buildup possible.
Unplug the power cord (or trip the breaker), wait about 5 minutes, restore power. If frost is suspected: Unplug the unit, open the doors fully and let ice melt (LG: 8+ hours on the code list; 1 day in summer / 3 days in winter on the FF/dH articles); let water drain to the drain tray. Move food if spoilage is a concern.
Meaning
Refrigerator temperature sensor (R1, upper) short or disconnection.
rS
Refrigerator temperature sensor (R1, upper) short or disconnection.
Meaning
Ambient (room) temperature sensor short or open.
rT
Ambient (room) temperature sensor short or open.
Meaning
Sabbath mode is active (lights, alarms and dispenser disabled; auto-off after 96 hours).
What to do
Press and hold Freezer and Wi-Fi for 3 seconds (varies by model).
Sb
Sabbath mode is active (lights, alarms and dispenser disabled; auto-off after 96 hours).
Press and hold Freezer and Wi-Fi for 3 seconds (varies by model).
Meaning
Pantry / water tank sensor short or open.
SS
Pantry / water tank sensor short or open.
Meaning
Water tank error — tank missing, misaligned, or sensor malfunction.
tt
Water tank error — tank missing, misaligned, or sensor malfunction.
Dispenser
Ice and water dispensers are the most common refrigerator service call; most dispenser faults are repairable.
Cooling
Cooling repairs are sealed-system work — check the compressor coverage before paying.
Repair
What’s involved
DIY
Parts
Labor
DIY
Advanced DIY
What’s involved
Replace ice maker assembly; sometimes auger/chute or sealed housing work.
Usually 2–7 days without it
Parts
Ice Maker Assembly
$80–$240
Labor
$150–$325
Ice Maker
Replace ice maker assembly; sometimes auger/chute or sealed housing work. Usually 2–7 days without it
Advanced DIY
Ice Maker Assembly
$80–$240
$150–$325
DIY
Advanced DIY
What’s involved
Water pressure, filter flow, valves, switches, and tubing are tested, and the failed valve or dispenser component is replaced.
Parts
Water inlet valve
$40–$150
Water filter housing / manifold
$50–$150
Internal water reservoir / tank / reservoir tubing
$50–$150
Dispenser paddle / microswitch
$20–$60
Dispenser control board / user interface
$120–$250
Labor
$125–$325
Water Inlet Valve / Dispenser Assembly
Water pressure, filter flow, valves, switches, and tubing are tested, and the failed valve or dispenser component is replaced.
Advanced DIY
Water inlet valve
$40–$150
Water filter housing / manifold
$50–$150
Internal water reservoir / tank / reservoir tubing
$50–$150
Dispenser paddle / microswitch
$20–$60
Dispenser control board / user interface
$120–$250
$125–$325
DIY
Advanced DIY
What’s involved
The technician verifies evaporator airflow and damper movement, then replaces the failed fan motor or damper assembly.
Parts
Evaporator fan blade / impeller
$15–$60
Evaporator fan motor
$50–$160
Air damper / diffuser control
$50–$200
Labor
$150–$425
Evaporator Fan Motor / Air Damper
The technician verifies evaporator airflow and damper movement, then replaces the failed fan motor or damper assembly.
Advanced DIY
Evaporator fan blade / impeller
$15–$60
Evaporator fan motor
$50–$160
Air damper / diffuser control
$50–$200
$150–$425
DIY
Advanced DIY
What’s involved
Replace defrost heater/thermostat/board.
Usually 1–3 days without it
Parts
Defrost thermostat / evaporator defrost sensor
$25–$70
Defrost heater
$40–$110
Electronic / adaptive defrost control board
$150–$300
Labor
$125–$425
Defrost System
Replace defrost heater/thermostat/board. Usually 1–3 days without it
Advanced DIY
Defrost thermostat / evaporator defrost sensor
$25–$70
Defrost heater
$40–$110
Electronic / adaptive defrost control board
$150–$300
$125–$425
DIY
Technician job
What’s involved
Replace compressor / sealed-system repair.
Usually 3–14 days without it
Parts
Compressor
$340–$460
Evaporator assembly / refrigerant leak
$250–$525
Labor
$500–$850
Compressor / Sealed System
Replace compressor / sealed-system repair. Usually 3–14 days without it
Technician job
Compressor
$340–$460
Evaporator assembly / refrigerant leak
$250–$525
$500–$850
DIY
Advanced DIY
What’s involved
Replace main or dispenser control board.
Usually 2–10 days without it
Parts
Main Control Board
$285–$365
Dispenser Control Board
$190–$255
Labor
$125–$325
Control Board
Replace main or dispenser control board. Usually 2–10 days without it
Advanced DIY
Main Control Board
$285–$365
Dispenser Control Board
$190–$255
$125–$325
DIY
Advanced DIY
What’s involved
The drain path and pressurized water tubing are isolated, then cleared, repaired, or replaced as required.
Parts
Drain tube / P-trap
$40–$45
Water tubing
$25–$65
Labor
$150–$325
Defrost Drain / Water Tubing
The drain path and pressurized water tubing are isolated, then cleared, repaired, or replaced as required.
Advanced DIY
Drain tube / P-trap
$40–$45
Water tubing
$25–$65
$150–$325
DIY
Advanced DIY
What’s involved
Sensor values and damper operation are tested and the failed thermistor or damper is replaced.
Parts
Thermistor / temperature sensor
$25–$75
Air damper / diffuser control
$50–$200
Main electronic control board
$150–$300
Labor
$125–$325
Thermistor / Air-Damper Control
Sensor values and damper operation are tested and the failed thermistor or damper is replaced.
Advanced DIY
Thermistor / temperature sensor
$25–$75
Air damper / diffuser control
$50–$200
Main electronic control board
$150–$300
$125–$325
DIY
Advanced DIY
What’s involved
Door alignment is corrected and the worn gasket or heated mullion assembly is replaced.
Parts
Door Gasket
$70–$150
Center Mullion / Flipper
$100–$150
Labor
$125–$250
Door Gasket / Center Mullion Assembly
Door alignment is corrected and the worn gasket or heated mullion assembly is replaced.
Advanced DIY
Door Gasket
$70–$150
Center Mullion / Flipper
$100–$150
$125–$250
DIY
Advanced DIY
What’s involved
The condenser is cleaned and the failed fan motor or blade is replaced after voltage and obstruction checks.
Parts
Condenser Fan Motor
$50–$85
Labor
$150–$325
Condenser Fan Motor
The condenser is cleaned and the failed fan motor or blade is replaced after voltage and obstruction checks.
Advanced DIY
Condenser Fan Motor
$50–$85
$150–$325
Easy DIY: basic tools, under an hour. Moderate: some disassembly. Advanced: experience with the machine's internals. Technician: sealed-system, electrical or tub-split work.
Parts prices don’t move much across the country; labor does. If a technician supplies the part, expect 40–50% on top of the part price.
Error codes and known issues come from manufacturer documents and public records, not from reviews. Sources: LG product page · LG warranty
Data You Can Trust
This page draws on the ApplianceEdge Registry — 2,600 appliance families connected to more than 9,400 verified models, independently researched. We don’t know everything about this family yet, and we won’t pretend to: finish records and filter and accessory cross-references for this platform are still being verified. We only publish what we can stand behind, and the gaps close as the Registry grows.
ApplianceEdge assessments — lifespans, repair values, and reliability notes — are our editorial opinions, built from documented third-party sources: owner reports, industry pricing data, manufacturer literature, and official records. They describe patterns across a product family, not any individual machine; your experience may differ. Recall information links directly to official CPSC notices. We accept no payment from manufacturers, and no brand influences what we publish.