LG LFX31925ST/00 refrigerator Parts

For the LG LFX31925ST refrigerator, the total capacity is 30.7 cu. ft. (about 20.7 cu. ft. refrigerator and 10.0 cu. ft. freezer). These model-specific capacities are listed in the specifications section of the LFX31925ST owner’s manual.

Capacity breakdown for this model

Here’s how the space is typically divided in the LG LFX31925ST:

• Total capacity: 30.7 cu. ft.
• Refrigerator section: 20.7 cu. ft.
• Freezer section: 10.0 cu. ft.
• French door, bottom-freezer layout (often called bottom-mount)

Section	Capacity (cu. ft.)
Refrigerator	20.7
Freezer	10.0
Total	30.7

Why it matters

Knowing the refrigerator and freezer capacities helps when you are comparing similar LG refrigerators, planning food storage, or deciding whether features like the in-door ice bin reduce usable shelf space for your household.

Related tip for owners

If you are troubleshooting ice or water performance, the manual also lists water pressure requirements and filter maintenance intervals, which can affect dispenser and icemaker operation.

Last updated: January 2026

On the LG LFX31925ST refrigerator, one of the most common real-world complaints is cooling and frost-related trouble, such as frost buildup in the freezer area or inconsistent temperatures. These symptoms often trace back to airflow restrictions, door sealing issues, or defrost/drain problems rather than a single “one-part” failure.

What we see most often on this model style

Common issues on French door, bottom-mount LG refrigerators like LFX31925ST include:

• Frost buildup in the freezer drawer or ice room (often from warm air leaks or defrost/drain issues)
• Refrigerator section too warm while freezer seems OK (airflow or fan-related)
• Ice maker not making enough ice (door not closing, warm freezer, water supply or filter restriction)
• Water dispensing slowly (frequently a clogged filter or low water pressure)
• Moisture or condensation inside (frequent door openings, humid conditions, door not sealing)

For model-specific operating details and troubleshooting tables, use the LFX31925ST owner’s manual.

Quick checks before replacing parts

These steps solve a lot of “common problems” without parts:

• Confirm doors and freezer drawer close fully; check for packages blocking closure
• Verify temperature settings; allow up to 24 hours after changes for temps to stabilize
• Clear air vents inside both compartments so cold air can circulate
• Clean condenser cover and vents (dust buildup can increase run time and reduce cooling)
• If ice or water is slow, replace the water filter and flush the system

When a part is a likely suspect

If symptoms persist after the checks above, these parts are commonly involved depending on the complaint:

Symptom	Common system involved	Example compatible part for LFX31925ST
Frost buildup, temp swings	Defrost sensing/control, airflow	Refrigerator defrost sensor assembly 6615JB2005R
Water tastes bad or flow is slow	Filtration, water supply	LG kenmore refrigerator water filter ADQ36006101
Not cooling well, runs a lot	Heat rejection/airflow	Refrigerator condenser coil ACG73645004

Why it matters

Frost buildup, warm temperatures, and restricted airflow can snowball into food spoilage, higher energy use, and ice maker or dispenser performance problems. Catching the root cause early usually prevents bigger repairs.

Last updated: January 2026

If your LG LFX31925ST bottom freezer is not freezing, the most common causes are warm temperature settings, blocked airflow (overpacked drawers or blocked vents), dirty condenser area, or frost buildup from a defrost problem. Start with settings and airflow checks before testing parts.

Quick checks for LG LFX31925ST

• Set the freezer to 0°F (target setting) and give it 24 hours to stabilize.
• Make sure the freezer drawer closes fully and nothing is holding it open.
• Avoid overpacking; leave space for air to circulate around food packages.
• Check for heavy frost on the back wall inside the freezer (a clue of defrost or airflow trouble).
• Clean dust from the condenser area (restricted airflow can reduce freezing performance).

What to do if you see frost buildup

Heavy frost usually means the evaporator area is not defrosting correctly or air is not moving.

• Do a manual defrost: unplug the refrigerator and leave doors open until frost melts (protect floors with towels).
• After restarting, listen for the freezer fan; if the freezer cools briefly then warms again, a defrost sensor or fan issue is likely.

If you suspect a defrost sensing problem on this model, a common service part is the refrigerator defrost sensor assembly 6615JB2005R.

When it may be a cooling-system issue

If the refrigerator section is cool but the freezer will not reach freezing temperatures (or both sections are warm), the issue can be in the sealed system or compressor circuit.

Symptom	More likely cause	Typical next step
Freezer warm, heavy frost present	Defrost/airflow problem	Inspect fan, sensor, ice blockage
Both sections warm, compressor runs a lot	Cooling system efficiency issue	Professional diagnosis recommended
Freezer warms after door openings, coils dusty	Condenser airflow restriction	Clean condenser area

For model-specific operating and troubleshooting steps (including control panel behavior and cooling timelines), use the LFX31925ST owner’s manual.

Why it matters

A freezer that cannot hold 0°F can lead to food spoilage and forces the compressor to run longer, increasing energy use. Catching airflow and frost issues early can prevent bigger cooling problems.

Last updated: January 2026

LG does not describe a dedicated “freezer reset” button or timed reset procedure for model LFX31925ST. For this model, the practical reset is a power cycle: turn power off, restore power, then allow time for temperatures to recover and stabilize. See the LFX31925ST owner’s manual for control-panel and troubleshooting guidance.

Power-cycle reset (safe first step)

• Unplug the refrigerator, or switch the circuit breaker OFF.
• Wait a few minutes (long enough for the display to go dark and controls to fully power down).
• Restore power.
• Confirm the control panel responds.
• Give the unit time to cool; temperature recovery can take many hours.

What to check after power is restored

If the freezer still seems warm, we focus on common, model-relevant causes before assuming a part failure:

• Freezer and refrigerator set temperatures are set correctly
• Doors and freezer drawer are closing and sealing fully
• Air vents inside compartments are not blocked by food packages
• The unit has adequate clearance and airflow around it
• The condenser area is not heavily dust-clogged (cleaning improves heat removal)

Quick reference: “reset” vs. “recovery time”

Situation	What to do	What to expect
Display/control acting odd after outage	Power cycle	Controls typically return to normal after power is restored
Freezer warm after restart	Wait and monitor	Cooling can take hours; full stabilization can take up to a day
Ice/water quality issues after maintenance	Flush/replace filter	Follow the manual’s filter flush guidance

When a part is more likely involved

A power cycle will not correct mechanical or airflow problems. If you also have slow water dispensing, small ice cubes, or a “change filter” indicator, replacing the water filter can help restore flow; for this model that’s the LG kenmore refrigerator water filter ADQ36006101.

Why it matters

Calling it a “reset” can be misleading; on LFX31925ST, the goal is simply to restart the electronics and then verify normal cooling recovery. This helps you avoid replacing parts when the refrigerator just needs time to pull temperatures back down.

Last updated: January 2026