LG LFX33975ST/04 bottom-mount refrigerator Parts

A bottom-mount refrigerator like the LG LFX33975ST keeps the fresh-food section at a more comfortable height, so we reach everyday items with less bending. The freezer sits below, which is convenient if we use refrigerated foods more often than frozen foods.

• Fresh foods are closer to eye level for faster finding and fewer door-open seconds
• Less bending for produce, drinks, and leftovers (the most-used compartment)
• Freezer drawers can hold bulky frozen items and slide out for easier access
• Better organization for fresh foods because shelves and bins are in the main viewing area
• Often a good fit for families that cook frequently and use the refrigerator section most

• Freezer access: If we use the freezer constantly, bending for the lower drawer may be a tradeoff.
• Door clearance: French door and drawer designs can need more front clearance than some top-freezers.
• Maintenance: Keeping airflow clear and seals tight helps any configuration cool efficiently.

Refrigerator layout affects comfort, food visibility, and how long the doors stay open. Shorter door-open time can help temperature stability and reduce workload on cooling components.

For model-specific features and storage details, use the LFX33975ST owner's manual. If you need replacement parts for this model, we list them on the parts page and you can also search by model at Sears PartsDirect.

Last updated: February 2026

For the LG LFX33975ST bottom-mount refrigerator, we recommend setting the freezer to 0°F (-18°C) and the fresh food (refrigerator) section to 37°F (3°C). These targets keep food safely frozen, help prevent spoilage, and support steady ice production; confirm any model-specific notes in the owner's manual.

• Freezer: 0°F (-18°C)
• Refrigerator: 37°F (3°C)
• Acceptable ranges:
  • Freezer: -2°F to 2°F (about -19°C to -17°C)
  • Refrigerator: 35°F to 38°F (about 2°C to 3°C)

• Give the refrigerator 24 hours after a change to stabilize.
• Use an appliance thermometer in a glass of water (fresh food) and between frozen items (freezer).
• Avoid overpacking; blocked vents cause warm spots and temperature swings.
• Keep doors closed as much as possible while temperatures stabilize.
• If ice cream is too hard, raise the freezer 1 to 2 degrees; if items are soft, lower it.

If you are also seeing slow dispensing or weak ice production, a restricted filter is a common cause; the correct replacement for this model is the LG kenmore refrigerator water filter ADQ36006101. For broader part lookup by model number, use Sears PartsDirect.

Food safety and performance depend on stable temperatures. Around 37°F slows bacterial growth in fresh foods, and 0°F keeps frozen foods solid while helping the ice maker cycle normally.

Last updated: February 2026

On the LG LFX33975ST bottom-mount refrigerator, the most common “problem” is usually a symptom such as warm fresh food, weak ice or water dispensing, frost buildup, or leaking water. These symptoms typically trace back to airflow restrictions, a door seal issue, or a water supply component that is clogged or failing. See the owner's manual for model-specific checks and settings.

• Fresh food section warm, freezer OK: airflow blocked, evaporator fan issue, or a defrost problem.
• Freezer too cold or heavy frost: defrost sensor or defrost system trouble.
• No ice or slow ice production: water supply issue, filter restriction, or ice maker fault.
• Water dispenser slow or not working: clogged filter, air in the line, or inlet valve issue.
• Water puddles under the refrigerator: drain system restriction or a drain tube issue.

1. Confirm temperature settings and give the unit 24 hours to stabilize after changes.
2. Make sure vents inside the refrigerator and freezer are not blocked by food packages.
3. Check door closing and sealing; a small gap can cause warm temps and frost.
4. If water or ice is weak, replace the filter and purge air from the dispenser.
5. If you see water under the unit, inspect the drain area and look for ice or debris.

A bottom-mount refrigerator like the LG LFX33975ST depends on steady airflow, tight door seals, and consistent water pressure. Fixing the root cause early helps prevent food spoilage, ice buildup, and extra compressor run time.

For broader troubleshooting and known display alerts, use LG bottom freezer refrigerator error codes. If you need to order replacement parts, use the parts list for LFX33975ST on this page or search by model at Sears PartsDirect.

Last updated: February 2026

On the LG LFX33975ST, ice building up on the freezer floor is most often caused by a clogged or frozen defrost drain; meltwater cannot flow to the drain pan, so it refreezes into a sheet of ice at the bottom. Clearing the drain and fully defrosting the ice usually fixes it.

• Unplug the refrigerator before working around ice and water.
• Remove the freezer drawer and look for a solid ice slab on the freezer floor.
• Locate the drain trough under the evaporator cover area; if it is iced over, the drain is likely blocked.
• Fully defrost the freezer floor ice (a hair dryer on low works; keep heat moving and away from plastic).
• Flush the drain with hot water (a turkey baster works well) until it flows freely.

If the drain keeps re-freezing after you clear it, inspect the drain tube for restriction and consider replacing the refrigerator drain tube 5251JA3003D.

If you clear the drain and the problem returns quickly, the defrost system may not be melting frost consistently. On this model, a failed defrost sensor can contribute to poor defrost performance. A common repair is replacing the refrigerator defrost sensor assembly 6615JB2005R (use the wiring and placement shown in the owner's manual).

A blocked drain does more than make ice; it can force water into the freezer compartment, create door sealing issues, and lead to temperature swings that affect ice maker performance and food quality.

• How to get rid of refrigerator puddles

You can order the drain tube, defrost sensor, and other LG LFX33975ST replacement parts from the parts list for this model, or search by model number on Sears PartsDirect.

Last updated: February 2026