LG LFX31925ST/04 refrigerator Parts

For the LG LFX31925ST refrigerator, the most common customer-reported issue is a cooling failure (refrigerator or freezer not staying cold). The most frequent root causes are in the sealed-system cooling path (such as the compressor) or airflow and defrost problems that prevent cold air from circulating properly; see the LFX31925ST owner's manual for model-specific operating checks.

• Fresh food section warm but freezer seems closer to normal
• Freezer warming up and ice production slowing or stopping
• Clicking, buzzing, or repeated start attempts from the rear of the unit
• Frost buildup on the back wall inside the freezer
• Temperature swings even though settings look correct

1. Confirm settings and loading: Make sure vents are not blocked by food packages.
2. Clean heat rejection: Dust on the condenser area can raise temps and run time.
3. Listen for fans: You should typically hear an evaporator fan running when cooling is called.
4. Check door sealing: A poor seal can cause moisture, frost, and long run times.
5. Look for error codes: If your display shows a code, use LG bottom freezer refrigerator error codes to narrow the failure.

Cooling problems can look “minor” at first, but warm temperatures can quickly lead to food spoilage and can overwork the compressor and fans. Catching airflow, defrost, or heat-rejection issues early often prevents bigger repairs.

If you need to order parts for your LG LFX31925ST, use the parts list for this model or search by model number on Sears PartsDirect.

Last updated: February 2026

Most LG refrigerators, including the LG LFX31925ST, typically last 10 to 15 years with normal household use and basic maintenance. Units that get regular coil cleaning, good door sealing, and stable temperatures often reach the high end of that range.

Refrigerator life depends less on the cabinet and more on wear items like the sealed system, fans, sensors, and ice and water components.

• Maintenance: keeping dust off the condenser area helps the compressor run cooler.
• Door sealing: torn or warped gaskets make the unit run longer and wear faster.
• Ice maker and dispenser use: heavy use increases wear on motors, valves, and switches.
• Room conditions: hot garages and tight built-ins raise operating temperatures.
• Power quality: frequent outages or surges can stress the control board and compressor.

We recommend these habits to extend life and reduce breakdowns:

• Vacuum the condenser area regularly; if your model has an exposed coil, keep it clean.
• Keep doors closed firmly; avoid “half-latched” doors.
• Replace the water filter on schedule to protect the valve and improve flow.
• Level the refrigerator so doors self-close and seals compress evenly.
• Keep vents inside the fresh food and freezer sections unblocked.

If performance drops, these model-matched parts are often involved:

A refrigerator that runs longer to maintain temperature uses more energy and puts extra hours on the compressor and fans. Simple airflow and sealing maintenance can add years of reliable service.

• Use the maintenance schedule and care instructions in the owner's manual.
• For ordering model-correct replacement parts, start with the parts list for LFX31925ST on this page, or search by model on Sears PartsDirect.

Last updated: February 2026

On the LG LFX31925ST, ice building up on the freezer floor is most often caused by a clogged or frozen defrost drain; defrost water cannot flow to the drain pan, so it refreezes at the bottom and forms a sheet of ice. Use the steps below to clear the drain and prevent repeat icing.

• Unplug the refrigerator or switch off power at the breaker.
• Empty the freezer bottom and remove the lower bin/drawer so you can access the floor.
• Melt the ice sheet with a hair dryer on low or by placing towels and letting it thaw (keep heat moving; do not overheat plastic).
• Locate the drain trough under/near the evaporator cover; clear visible ice.
• Flush the drain with hot water using a turkey baster or squeeze bottle until it flows freely.
• Clean the drain hole with a flexible plastic tube or pipe cleaner (do not use anything sharp).

For model-specific access points and panel removal details, follow the owner's manual.

• Food particles or debris in the drain trough
• Ice blockage from a door left slightly open or frequent openings
• Warm, humid air leaking past a worn door seal
• Freezer temperature set too cold, increasing frost load

If the drain keeps freezing after you clear it, check for airflow and sealing issues that increase frost. These parts are commonly involved on this model:

A blocked defrost drain can lead to recurring ice sheets, reduced airflow, warmer freezer temps, and water leaks when the ice melts. Clearing the drain early helps protect food quality and reduces strain on the cooling system.

For preventive tips that reduce ice maker and dispenser-related moisture problems, use how to prevent water dispenser and ice maker problems. You can also order the exact replacement parts listed for LG LFX31925ST from the parts list for this model, or search by model number on Sears PartsDirect.

Last updated: February 2026

Yes. LG refrigerators like model LFX31925ST can be expensive to fix when the failure involves sealed-system cooling parts (compressor, evaporator, condenser) or electronic controls; those repairs often cost several hundred dollars in parts alone, plus labor. For exact component locations and access steps, use the LFX31925ST owner's manual.

Costs rise fastest when the problem is in the cooling system or requires major disassembly.

• Sealed-system parts are high-cost and labor-intensive to replace
• Some repairs require refrigerant handling and specialized tools
• Multiple symptoms can trace back to one root cause (cooling, defrost, airflow)
• Electronic parts can be pricey and may require careful diagnosis
• Door sealing and water system issues are usually cheaper, but can still add up

Use this quick checklist before you buy parts.

• If the refrigerator is not cooling and the compressor is suspected, get a firm diagnosis first; compressor-related repairs are among the highest-cost.
• If you have frost buildup or intermittent warming, check for defrost and airflow issues before assuming a compressor problem.
• If the issue is water, ice, or a door gasket, repairs are often more cost-effective.
• Compare the part cost to the refrigerator’s age and overall condition.
• Order model-matched parts from the list for LFX31925ST, or search by model on Sears PartsDirect.

Misdiagnosing a cooling problem can lead to replacing an expensive part that does not fix the root cause. Starting with symptoms, error codes, and basic checks helps keep repair costs under control.

Helpful DIY reference: LG bottom freezer refrigerator error codes.

Last updated: February 2026