LG LFX25976ST/03 refrigerator Parts

The LG LFX25976ST is a full-size, 36-inch class French door, bottom-mount refrigerator. Most models in this class are about 35 3/4 inches wide and roughly 69 to 70 inches tall; use the owner's manual for the exact dimensions and capacity for your LFX25976ST.

What “size” usually means (and what to check)

When customers ask for the size of an LG refrigerator, they typically mean one or more of these measurements:

• Width (to fit between cabinets)
• Height (to clear upper cabinets)
• Depth (especially if you need counter-depth clearance)
• Capacity in cubic feet (fresh food plus freezer)
• Door swing and clearance (space needed to open doors and pull out freezer drawer)

Typical dimensions for a 36-inch class bottom-mount LG

These are common ranges for 36-inch class French door, bottom-mount refrigerators like the LFX25976ST:

Measurement	Typical range (approx.)	Why it matters
Width	35 3/4 in to 36 in	Cabinet opening fit
Height	69 in to 70 1/2 in	Overhead clearance
Depth (overall)	34 in to 36 in	Walkway and counter alignment
Capacity	24 to 28 cu. ft.	Storage planning

How to confirm the exact size for your LFX25976ST

Use these steps to get the right numbers the first time:

• Check the specifications/dimensions section in the owner's manual.
• Measure your opening in three places (top, middle, bottom) for width and height.
• Allow extra space behind the unit for airflow and water line routing.
• If you are replacing an older unit, confirm the depth with doors and handles.
• Plan clearance so the freezer drawer can fully extend without hitting an island or wall.

Why it matters

A refrigerator that is even 1/2 inch too wide or too tall can prevent proper installation, restrict door movement, and reduce airflow, which can hurt cooling performance and efficiency.

Last updated: February 2026

For the LG LFX25976ST, the most common service issue we see is a cooling failure (refrigerator warm, freezer warming, or temps swinging). The most frequent root causes are airflow/defrost problems, a failed fan or control, or sealed-system/compressor trouble; use the owner's manual to confirm the exact checks and settings for your model.

Most common symptoms customers notice

• Fresh food section not cold enough but freezer seems OK
• Freezer warming and ice production slowing or stopping
• Clicking, buzzing, or a steady hum with poor cooling
• Frost buildup on the back wall or around vents
• Water leaking inside the fridge or pooling under the unit

Quick checks we recommend first (no parts guessing)

• Verify temperatures: set refrigerator to about 37°F and freezer to about 0°F; allow 24 hours to stabilize.
• Check airflow: do not block interior vents; overpacked shelves cause warm spots.
• Inspect door closure: make sure doors seal fully and the mullion/flipper closes correctly.
• Clean condenser area: dust buildup reduces heat removal and can mimic compressor problems.
• Look for defrost clues: heavy frost plus weak airflow points to a defrost/airflow issue.

Common causes and what they usually point to

What you observe	Most likely system involved	What to do next
Warm fridge, freezer OK	Airflow between compartments	Clear vents; check for frost patterns
Both sections warm	Sealed system or compressor	Check condenser cleanliness; consider pro service
Ice maker not making ice	Water supply or ice maker system	Confirm water flow; inspect ice room door
Water under crisper or on floor	Defrost drain restriction	Clear drain; inspect drain tube

Parts that are often involved on this model

We match parts to symptoms, not guesses. These are commonly related to the issues above:

• Door not sensing closed: refrigerator door switch 6600JB1010A
• Ice production problems: refrigerator ice maker assembly AEQ73110205
• Poor water flow to dispenser/ice maker: LG refrigerator water inlet valve AJU72992601
• Water leaks from defrost drain: refrigerator drain tube 5251JA3003D
• No cooling or sealed-system failure signs: refrigerator compressor TCA38091801

Why it matters

Cooling problems can spoil food quickly and can also overwork the compressor and fans. Catching airflow, door-seal, and condenser-cleaning issues early often prevents bigger repairs.

Last updated: February 2026

On an LG LFX25976ST, water leaking from the bottom is usually caused by a clogged or iced-over defrost drain that overflows into the cabinet and down to the base. Leaks can also come from the ice maker or water supply system dripping and running to the bottom.

Quick checks (5 minutes)

• Look for water under the crisper drawers (common with a blocked defrost drain).
• Check the freezer floor for a thin sheet of ice (another drain-clog clue).
• Inspect the water filter area for drips right after a filter change.
• Look behind the unit for moisture at the household water line connection.
• Note when it leaks: only during ice making or dispensing points to the water system.

Common causes and what to do

Likely cause	What you’ll notice	What to do next
Clogged/iced defrost drain	Water under drawers, puddles after defrost	Melt ice, clear the drain path, flush with warm water
Leaking filter bypass or filter not seated	Drips at filter area	Reseat filter; inspect refrigerator water filter bypass ABN73019101
Cracked/loose water line	Slow drip, wet tubing route	Inspect and replace refrigerator water tubing MJU62070602
Ice maker leak	Leak during ice production	Check fill area; replace refrigerator ice maker assembly AEQ73110205 if leaking

How we isolate the source

• Dry the area completely so new water is easy to spot.
• If it leaks with the water supply turned off, focus on the defrost drain.
• If it stops with the water supply turned off, focus on filter seating, tubing, or the ice maker.

Why it matters

Bottom leaks can damage flooring and create hidden moisture that leads to odors and recurring ice buildup.

For drain routing and access panels, use the owner's manual.

Last updated: February 2026