LG LFX25978SW/00 refrigerator Parts

On the LG LFX25978SW refrigerator, Ice is normal ice maker operation, while Ice Plus is a boost mode that runs the freezer at its coldest setting for about 24 hours to increase ice production (up to about 20%), then shuts off automatically. See the LFX25978SW owner's manual for the exact control-panel behavior on your unit.

How Ice Plus works (and when to use it)

Ice Plus is designed for short-term, higher-demand situations.

• Use Ice Plus before parties, holidays, or when refilling an empty ice bin
• Expect colder freezer operation for roughly 24 hours
• Ice Plus turns off automatically; you can also turn it off manually
• Keep doors closed as much as possible so the freezer can stay at the coldest setting
• Make sure the ice bin is seated correctly so cubes dispense and store normally

Control panel: what you will see

On this model family, the ICE PLUS button activates the feature and the display shows an Ice Plus indicator when it is on.

Feature	What it does	Typical duration	Best for
Ice (normal)	Standard ice maker cycling	Continuous	Everyday use
Ice Plus	Freezer runs at coldest setting to boost output	About 24 hours	Temporary high ice demand

Why it matters

If you leave Ice Plus on when you do not need it, the freezer runs colder than normal, which can increase energy use and may make items in the freezer harder to scoop or separate. Using it only when needed helps balance ice production, temperature stability, and efficiency.

If you still are not getting enough ice

These quick checks solve most low-ice complaints on LG bottom-mount units:

• Confirm the freezer temperature is set cold enough (many users target around 0°F)
• Check that the ice bin is not jammed with clumped cubes
• Verify the water supply valve is fully open and the water line is not kinked
• Replace the water filter on schedule and reset the filter indicator
• If the dispenser area is not moving ice properly, inspect the refrigerator auger motor EAU59551204

Last updated: January 2026

For the LG LFX25978SW, the most common service complaint we see across LG refrigerators is cooling problems (fresh food or freezer not staying cold). Many “cooling issues” are caused by airflow, defrost-cycle conditions, or fan-related problems, not just one single part; the LFX25978SW owner's manual troubleshooting section helps you narrow it down fast.

What to check first (fast triage)

• Confirm the unit has power and the outlet is working; a tripped breaker can look like a “dead” fridge.
• Give the refrigerator about 30 minutes if it is in a defrost cycle before assuming a failure.
• Listen for normal sounds: dripping or running-water sounds can happen during defrost.
• Make sure air vents are not blocked by food packages.
• Check that doors fully close; frequent door openings add humidity and can affect cooling.

Common symptoms and likely causes

Symptom	What it often points to	What we recommend
Fridge warm, freezer warm	Power issue or sealed-system/cooling system problem	Verify power, then move to professional diagnosis if still not cooling
Fridge warm, freezer cold	Airflow/evaporator fan or defrost issue	Inspect airflow, then consider the LG refrigerator evaporator fan motor 4681JB1027C if the fan is not running
Too much noise	Normal defrost sounds or fan noise	Compare to “normal sounds” guidance in the manual
Ice maker slow/no ice	Freezer too warm, door left open, blocked vents, water supply issue	Check temps, vents, and water supply; use common refrigerator ice maker problems and solutions for step-by-step checks

Why it matters

Cooling problems can spoil food quickly and can also cause secondary issues like excess frost, water in the drain area, or ice maker complaints. A quick airflow and defrost-cycle check prevents unnecessary part replacement.

When a part is commonly involved

If the refrigerator is running but not moving cold air through the compartments, the evaporator fan circuit is a frequent suspect. For this model, a common replacement is the LG refrigerator evaporator fan motor 4681JB1027C.

Last updated: January 2026

The LG LFX25978SW bottom-mount refrigerator has a total capacity of 24.9 cu. ft. Use the LFX25978SW owner's manual to confirm the exact specification wording for your unit and to see any related storage and feature notes for this model series.

Capacity details (what the number means)

Total capacity is the combined storage volume of the fresh food and freezer compartments. Your usable space can feel slightly smaller because shelves, bins, and the ice storage bin take up room.

• Total capacity is measured in cubic feet (cu. ft.)
• It represents overall interior volume, not shelf-by-shelf space
• Door bins, crisper drawers, and the ice bin reduce usable room
• Keeping air vents clear helps you get the best real-world storage and cooling

Where to verify capacity on the refrigerator

You can confirm the capacity and other key specs using these common locations.

• The specifications section in the LFX25978SW owner's manual
• The model and serial label inside the fresh food compartment
• Product documentation that came with the refrigerator (feature sheet)

Quick comparison (typical for this style)

Refrigerator style	Typical total capacity	Notes
LG 3-door bottom-mount (like LFX25978SW)	24 to 26 cu. ft.	Common family-size layout
Compact bottom-mount	18 to 22 cu. ft.	Smaller kitchens

Why it matters

Knowing the correct 24.9 cu. ft. capacity helps when you are planning grocery storage, comparing replacement refrigerators, and deciding whether accessories or repairs (like an ice maker issue) are affecting usable space.

Last updated: January 2026