LG LMXC23746S/01 bottom-mount refrigerator Parts

Many LG stainless steel refrigerators are not magnetic because some stainless finishes use non-magnetic steel or have a non-magnetic outer layer. For LG model LMXC23746S, magnet strength can vary by door/panel area, so the most reliable way is to test a small magnet on the exact spot you want to use (see handling and care guidance in the LMXC23746S owner’s manual).

What to expect on LMXC23746S

Even within the same refrigerator, magnet performance can differ by surface and construction.

• A magnet may stick well on one door but weakly on another.
• The dispenser area and trim pieces often have different materials behind the finish.
• Some areas may feel “magnetic” but not hold heavier items (photos, calendars).
• A protective coating can reduce how strongly a magnet grabs.

Quick test (safe for the finish)

We recommend a simple check that avoids scratching the stainless surface.

1. Use a clean, smooth magnet (no grit on the back).
2. Test in 3 to 5 spots: upper door, lower door, near the edge, and away from the dispenser.
3. If you plan to hang something heavier, test with the actual weight attached.
4. Wipe the area afterward with a soft cloth.

If you need a “magnet-friendly” solution

If magnets do not hold well on your LMXC23746S, these options usually work better than stronger magnets.

Option	Best for	Why it helps
Magnetic whiteboard sheet (with adhesive)	Notes and calendars	Creates a magnetic surface layer
Removable hooks rated for stainless	Keys, light items	Uses adhesive instead of magnetism
Side panel use (if magnetic)	Photos, kids’ art	Some side panels are more magnetic

Why it matters

Using extra-strong magnets on a weakly magnetic stainless surface can lead to sliding, scratches, or dents. Testing first helps protect the finish and prevents items from falling.

Last updated: January 2026

On LG model LMXC23746S, ice building up on the freezer floor is most often caused by a defrost drain that is partially or fully blocked; defrost water cannot flow to the drain pan, so it refreezes at the bottom. A full manual defrost and drain clearing usually fixes it. See the LMXC23746S owner's manual for safe defrosting and care guidance.

What to check first (quick diagnosis)

• Ice sheet only on the freezer floor: points to a clogged drain path.
• Frost on packages and walls too: can also involve air leaks (door not sealing) or frequent door openings.
• Water pooling then freezing: drain is blocked or the drain tube is restricted.

How we recommend fixing it

1. Move food to a cooler and unplug the refrigerator.
2. Open the freezer drawer and let the ice melt (towels help).
3. Once melted, clear the drain opening (warm water and a turkey baster work well).
4. Confirm water flows freely down to the drain pan area.
5. Restore power and monitor for 24 to 48 hours.

If the drain keeps re-freezing or won’t clear, the drain tube may be damaged or restricted; replacing the drain tube assembly is a common next step on many LG bottom-mount designs.

• Compatible replacement option for this model: refrigerator drain tube assembly 5251JA3004E

Parts and symptoms at a glance

Symptom	Most likely cause	What usually helps
Solid ice slab on freezer bottom	Drain blocked by ice/debris	Manual defrost + flush drain
Frost everywhere in freezer	Door not sealing, warm air intrusion	Check gasket contact, reduce door-open time
Repeated icing after clearing	Drain tube restriction or re-freeze issue	Inspect/replace drain tube assembly

Why it matters

When the drain can’t carry defrost water away, that water refreezes into a thick ice layer. Over time it can reduce freezer space, interfere with drawer movement, and contribute to temperature swings.

Last updated: January 2026

On LG model LMXC23746S, a DH code typically points to a defrost heating problem (the refrigerator is not defrosting as expected). When defrost heat is missing, frost can build up on the evaporator, restricting airflow and causing warm temperatures or uneven cooling. For control-panel and troubleshooting details, use the LMXC23746S owner's manual.

What you’ll usually notice with a DH code

• Frost or ice buildup on the back wall inside the freezer
• Refrigerator section warming up while the freezer seems closer to normal
• Fan noise changing (airflow gets weaker as frost builds)
• Longer run times and temperature swings
• Water dripping or refreezing in the freezer after a defrost attempt

Quick checks we recommend first (no parts swapping)

1. Power reset: Unplug the refrigerator for 5 minutes, then plug back in.
2. Door sealing: Make sure doors close fully and gaskets are sealing (warm air increases frost).
3. Airflow: Do not block vents; keep items from touching the rear interior panels.
4. Temperature settings: Return to normal setpoints if they were changed recently.
5. Listen for the evaporator fan: If airflow is weak, frost buildup is likely.

Parts commonly involved (LMXC23746S)

If the DH code returns after basic checks, the issue is often in the defrost circuit. These model-compatible parts are common suspects:

What can fail	What it affects	Example compatible part for this model
Defrost heater	No heat during defrost, heavy frost	Refrigerator defrost heater assembly MEE62805303
Temperature sensing (thermistor/sensor)	Defrost timing and termination	(Check the parts list for the exact sensor used)
Main control board	Defrost control logic and power to heater	(Check the parts list for the exact board used)

Why it matters

A DH code is not just a display issue. If the defrost system is not clearing frost, airflow drops and food temperatures can rise, even if the compressor is running.

Last updated: January 2026

On the LG LMXC23746S, the most common “problem” customers describe is uneven cooling: the fresh food section warms up while the freezer stays cold. On this model, that usually points to an airflow restriction, a temperature-sensing issue, or a defrost/evaporator airflow problem (not a single one-size-fits-all failure).

Quick checks we recommend first (no parts)

• Confirm the control panel is not in Display Mode (cooling off) and that temperatures are set normally; see the LMXC23746S owner's manual.
• Make sure vents in the refrigerator section are not blocked by food containers.
• Check that doors close fully and gaskets seal all the way around.
• Allow 24 hours after any temperature change for the unit to stabilize.
• If ice production is also weak, verify the water supply pressure and that the icemaker is ON.

Likely causes when the fridge is warm but the freezer is cold

These are the most typical root causes for this symptom pattern on French door/bottom-mount designs like the LMXC23746S:

• Frost buildup on the evaporator restricting airflow (defrost system issue)
• Evaporator fan not moving enough air
• Temperature sensor (thermistor) reading incorrectly
• Condenser airflow or heat rejection problem (dirty coils, fan issue)

Parts that commonly relate to these symptoms (model-matched)

If troubleshooting points to a failed component, these are examples of compatible parts for LMXC23746S:

• Refrigerator temperature sensor 6500JB2002E (helps the control board “know” actual temps)
• Refrigerator fan motor EAU63103204 (moves cold air through compartments)
• Refrigerator defrost heater assembly MEE62805303 (melts frost off the evaporator)
• Refrigerator condenser coil ACG73645004 (releases heat; performance drops when clogged)

Symptom-to-part starting point

What you notice	Most likely area	Good next step
Fridge warm, freezer OK	Airflow/defrost	Check for frost on rear freezer panel; listen for fan
Temps swing up and down	Sensor/control	Check sensor readings and error codes
Runs a lot, poor cooling	Condenser side	Clean coils; verify condenser fan operation

Why it matters

Uneven cooling can spoil food in the fresh food section even when the freezer seems “fine.” Catching airflow and defrost issues early can prevent heavy frost buildup, longer run times, and higher energy use.

Last updated: January 2026