LG LFX28978ST/02 refrigerator Parts

The LG LFX28978ST is a bottom-mount refrigerator model, so it is not the same product as an LG 335 L, 3-star, inverter, frost-free double door refrigerator. To confirm the exact features and specifications for your refrigerator, match the model number on the rating label to the details in the LFX28978ST owner’s manual.

How to tell if you have the right LG model

Use the model number on the refrigerator’s rating label (not the listing title) to identify what you own.

• Check the rating label inside the fresh food compartment (often on a side wall)
• Confirm the model number is LFX28978ST (letters and numbers must match exactly)
• If your model starts with GL- (common on some 335 L “double door” units), it is a different product line
• Compare door style: bottom-mount models have a freezer drawer on the bottom
• Use the manual specs to verify cooling type, defrost type, and electrical requirements

Quick comparison: “double door” vs bottom-mount

Feature	Double door (top freezer)	Bottom-mount
Freezer location	Top	Bottom drawer
Door layout	2 doors	2 doors plus freezer drawer
Common capacity range	Often mid-size	Often larger

Why it matters

Parts, filters, and troubleshooting steps are model-specific. Using the correct model number helps you choose the right LG refrigerator parts (like a door gasket, water inlet valve, or ice maker) and prevents ordering the wrong replacement.

Last updated: February 2026

Common problems we see with the LG LFX28978ST bottom-mount refrigerator include water leaking, unusual noise, and the fresh food section running too warm. These symptoms usually trace back to door sealing issues, airflow or fan problems, defrost drainage, or the ice maker and water system; use the LFX28978ST owner’s manual to match symptoms to checks.

Most common symptoms and what they usually mean

• Leaking water: Often a clogged/iced defrost drain, a loose water line, or a leaking inlet valve
• Noisy operation: Commonly condenser fan noise, evaporator fan noise, or ice maker/auger noise
• Fridge too warm: Typically restricted airflow, dirty condenser area, fan not running, or a door not sealing
• Ice maker not working well: Usually water supply issues, inlet valve problems, or ice room door not sealing
• Frost buildup: Often a door gasket leak or a defrost system issue

Quick checks we recommend first (10 to 20 minutes)

• Confirm temperature settings; target about 37°F fresh food and 0°F freezer
• Make sure vents inside the refrigerator are not blocked by food packages
• Check door closure and alignment; look for gaps or a torn gasket
• Listen for where the noise comes from (rear bottom, inside freezer, dispenser area)
• Inspect for water under the crisper drawers or under the freezer drawer (points to drain issues)
• If the dispenser sputters after a filter change, purge air from the water line

Symptom-to-part guide (common matches)

Symptom	Common area to inspect	Example part for this model
Leaking	Water supply and valve, tubing, drain	LG refrigerator water inlet valve AJU72992601, refrigerator water tubing MJU62070602, refrigerator drain tube 5251JA3003D
Noisy	Fan area, compressor compartment, ice/dispenser	Refrigerator condenser fan motor assembly EAU61723501, refrigerator compressor overload protector 6750CL0001D
Fridge too warm	Door seal, condenser area, airflow	Refrigerator door gasket, right ADX73550624, refrigerator condenser coil ACG73784701

Why it matters

Catching these issues early helps protect food temperatures, reduces energy use, and prevents secondary damage like ice buildup, water damage, or compressor strain.

Helpful DIY references

• Use LG bottom freezer refrigerator error codes if the display shows an error or the unit is beeping
• Use how to prevent water dispenser and ice maker problems to reduce repeat clogs, leaks, and low ice production

Last updated: February 2026

A bottom-mount refrigerator (like your LG LFX28978ST) has the fresh-food compartment on top and the freezer drawer on the bottom. This layout keeps everyday refrigerated items at eye level and puts frozen foods lower, which many people find more convenient.

How a bottom-mount layout is organized

• Top section: refrigerator (fresh food) shelves, bins, and door storage
• Bottom section: pull-out freezer drawer for frozen foods
• Common style: many bottom-mount models are French door on top with a freezer drawer below
• Typical benefit: less bending for frequently used items like milk, produce, and leftovers

Bottom-mount vs. top-mount: quick comparison

Feature	Bottom-mount refrigerator	Top-mount refrigerator
Fresh food access	Easier (at eye level)	Requires more bending
Freezer access	Requires more bending	Easier (freezer on top)
Freezer style	Usually a drawer	Usually a swing door
Best for	People who use fresh food most	People who use freezer most

Why it matters

The “mount” describes where the freezer is located, which affects daily ergonomics, how you organize groceries, and even how often you open each compartment. For the LG LFX28978ST, the bottom freezer design is built around quick access to fresh foods up top.

Helpful model-specific tip

For compartment features, temperature recommendations, and storage configuration details for the LG LFX28978ST, follow the diagrams and operating guidance in the LFX28978ST owner's manual.

Last updated: February 2026

The LG LFX28978ST bottom-mount refrigerator has a total capacity of 27.6 cu. ft. For the most accurate model-specific specs (including compartment breakdown and storage features), we recommend confirming in the LFX28978ST owner's manual.

Capacity details you can expect

Capacity is the total interior volume across the fresh food and freezer sections. On refrigerators like the LFX28978ST, usable space can vary slightly based on shelving, ice maker configuration, and bins.

• Total capacity: 27.6 cu. ft.
• Includes both refrigerator and freezer sections
• Usable space changes with shelf positions and door bin loading
• Ice storage and the ice room can reduce usable freezer volume
• Keeping vents clear helps maintain even cooling and preserves usable space

Quick reference

Spec	Value
Model	LFX28978ST
Refrigerator type	Bottom-mount
Total capacity	27.6 cu. ft.

Why it matters

Knowing capacity helps us size the refrigerator for your household, compare it to other 36-inch class models, and plan storage (especially if you rely on the ice maker and door bins for daily use).

Last updated: February 2026

Most LG refrigerators, including the LG LFX28978ST, typically last 12 to 15 years with normal household use. We see longer life when basic maintenance is done regularly and cooling and door-seal issues are corrected early using the care and cleaning guidance in the LFX28978ST owner’s manual.

Typical lifespan and what affects it

A refrigerator’s life is mostly driven by how hard the sealed system works and how well the doors seal.

• Condenser cleanliness (dirty coils raise compressor run time)
• Door gasket condition (air leaks cause constant cooling)
• Room temperature and ventilation around the cabinet
• Ice maker and water system upkeep (prevents leaks and freeze-ups)
• Power quality (surges and repeated outages shorten control and compressor life)

Maintenance that adds years (practical checklist)

These steps are the biggest “lifespan multipliers” for a bottom-mount LG refrigerator.

• Vacuum dust from the condenser area and grille several times per year
• Keep doors closing easily; level the cabinet so doors self-close
• Clean and condition door gaskets; replace torn gaskets promptly
• Replace the water filter on schedule; purge air after filter changes
• Keep freezer drawers closing fully; avoid overpacking that blocks vents

Common wear items vs. major repairs

Item	What it impacts	Typical symptom
Door gaskets	Efficiency, frost, temperature stability	Sweating, frost, warm spots
Ice maker parts	Ice production, leaks	No ice, small cubes, leaking
Compressor/sealed system	Core cooling performance	Warm fridge/freezer, loud running

Why it matters

When coils are dirty or gaskets leak, the compressor runs longer and hotter. That extra run time is the main reason refrigerators fail earlier than the 12 to 15 year norm.

Helpful DIY resources

• How to fix a fridge door seal
• How to replace the water filter in an LG refrigerator

Last updated: February 2026

The LG LFX28978ST is a 36-inch wide, large-capacity French door, bottom-mount refrigerator with about 27.6 cu. ft. of total storage. For the exact height and depth (which can vary with handles and door swing), use the LFX28978ST owner's manual.

What “size” usually means for this model

When customers ask the size of an LG refrigerator, it typically refers to one or more of these specs:

• Width (cabinet width): commonly listed as 36 inches for LFX28978ST
• Capacity (storage volume): about 27.6 cu. ft.
• Height (to top of case or hinge)
• Depth (with handles, without handles, and to door front)
• Clearances needed for airflow and door opening

Quick spec snapshot

Spec type	What to expect for LFX28978ST	Why it matters
Width class	36-inch	Fit between cabinets and counters
Capacity class	~27.6 cu. ft.	Food storage planning
Configuration	French door, bottom freezer	Door swing and drawer clearance

How to measure your opening correctly

We recommend measuring before ordering parts, planning a move, or replacing the refrigerator.

• Measure width in three places (top, middle, bottom)
• Measure height from floor to the lowest overhead cabinet/soffit
• Measure depth from back wall to counter edge (note baseboards)
• Add clearance for doors to open and the freezer drawer to pull out
• Confirm whether you need depth with handles or without handles

Why it matters

A refrigerator that is “36-inch class” can still be too tight if the cutout is exact, especially once you account for handles, hinge caps, and the space needed behind the unit for airflow. Using the manual’s dimension diagram prevents fit issues.

Last updated: February 2026

On LG model LFX28978ST, ice building up on the freezer floor is almost always caused by a defrost drain that is clogged or frozen, so meltwater cannot flow to the drain pan and instead refreezes at the bottom. Use the steps in the LFX28978ST owner's manual to access the drain area safely.

Most common causes

• Defrost drain hole or drain tube blocked by ice, food debris, or sludge
• Drain tube frozen from warm air leaks or repeated door openings
• Door not sealing well, adding moisture that turns into frost and ice
• Freezer overpacked, restricting airflow and increasing frost buildup
• Unit not level, so water does not flow toward the drain

Fix it: clear the drain and stop the refreeze

1. Unplug the refrigerator and remove the freezer drawer/bins.
2. Melt the ice sheet on the freezer floor using a hair dryer on low or bowls of hot water (do not chip ice with sharp tools).
3. Locate the drain opening (typically under the evaporator cover area) and flush it with hot water using a turkey baster.
4. If water backs up, check the drain line at the rear and clear the tube; replacing a damaged drain component such as the refrigerator drain tube 5251JA3003D restores proper drainage.
5. After reassembly, confirm the freezer door closes tightly and the gasket seals all the way around.

Quick checks that prevent repeat icing

Check	What to look for	What to do
Door seal	Gaps, wrinkles, or warm air leaks	Clean and warm the gasket to reshape; replace if torn
Leveling	Doors swing open or water pools	Level front to back so water runs to the drain
Loading	Vents blocked by packages	Leave space around vents for airflow
Moisture sources	Frequent openings, warm food	Cool food first; minimize door-open time

Why it matters

A blocked drain forces defrost water to refreeze, which can lead to ice buildup, poor cooling airflow, and water leaks when the ice melts.

For related leak symptoms, we also use the steps in how to get rid of refrigerator puddles.

Last updated: February 2026