LG WM4000HBA

Washer · 11 documented failures, each with the part, the price, the video and the manual page.

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Owner's manual: exact-model-family (manual's own BuyerModel meta is WM4000H*A; corpus energy record is WM4000H*A)

What is it doing?

Codes on the display

CodeWhat it meansEvidence
IEInlet errorthis model's own manual
OEWater outlet errorthis model's own manual
UEUnbalance errorthis model's own manual
dE, dE1, dEz, dE4Door open errorthis model's own manual
tETemperature sensor errorthis model's own manual
FEOverflow errorthis model's own manual
PEPressure sensor errorthis model's own manual
LEMotor locked errorthis model's own manual
vsVibration sensor errorthis model's own manual
svdOversudsing detectionthis model's own manual
FFFrozen errorthis model's own manual
PFPower failurethis model's own manual
CLControl lockthis model's own manual
tcLTub clean alarmthis model's own manual
DEa repair video for this brand and appliance, not confirmed on this model
E7a repair video for this brand and appliance, not confirmed on this model
1Ea repair video for this brand and appliance, not confirmed on this model

Documented failures

Door boot seal

Technician only Vendor replaces this part if it's missing or broken
Stop. DIY-able but fiddly - the outer ring must seat perfectly or it will leak again. If the tub itself is cracked or the leak is from behind the drum, stop and call a technician.

Check, in this order

  1. Pull the boot open all the way round and look for splits, especially at the bottom (6 o'clock) where water sits.
  2. Run a Rinse+Spin and watch the door seal - a boot leak usually shows only when the drum is turning.
  3. Check the retaining ring (ACA56078801) is seated; a popped ring leaks without the boot being torn.

Before you open anything

Filmed on this exact machine
LG Washer Door Boot Seal Replacement AGM30030702RepairClinic.com · 13:28

Parts exist for this component and are deliberately not listed here: this is not a repair to attempt yourself.

Worth fixing? Repair — the part is a small fraction of a new machine. Part — against $729.00 for a new machine (1.1%).Part cost only. A service call adds a diagnostic fee plus labour, which we do not quote because it is regional.

Drain pump

Usually DIY Vendor replaces this part if it's missing or broken

DIY. Escalate only if the pump is fine and OE persists, which points at the control board or wiring.

Try this first — it costs nothing. Clean the drain filter - manual: MAINTENANCE.

Check, in this order

  1. Clean the drain filter behind the lower access panel FIRST - a coin or lint clog mimics a dead pump exactly and costs nothing.
  2. Confirm the drain hose is not kinked and its end is below 96 in (2.4 m) - the manual lists both as OE causes.
  3. With power off, spin the pump impeller by hand; if it is seized or noisy, replace the pump.

Before you open anything

Tools

The repair, in order

  1. Open the lower access panel and drain through the filter hose into a shallow pan.
  2. Remove and inspect the pump filter — coins, hair clips and lint clog it and mimic a dead pump exactly.
  3. If the filter was clean, photograph the pump's wiring connectors, then unplug them.
  4. Release the hose clamps to the sump and the drain hose; expect more water.
  5. Unscrew the pump from its mount, fit the replacement, and reconnect clamps and connectors in the photographed order.
  6. Run a Rinse+Spin with the panel still off and watch for leaks before closing up.

How you know it worked. Run Rinse+Spin. A good repair drains fully within the drain step with no OE and no drip at either clamp.

Filmed on this exact machine
LG Washer Drain Pump Replacement AHA75853803RepairClinic.com · 10:18

PartTypeListingPricePrice checked
AHA75853803AftermarketAHA75853803 Washer Drain Pump Assembly Compatible with LG Washing Mach$45.52Buy
Prices are a snapshot taken on the date shown and are not monitored. Check the retailer before buying.

Worth fixing? Repair — the part is a small fraction of a new machine. Part — against $729.00 for a new machine (6.2%).Part cost only. A service call adds a diagnostic fee plus labour, which we do not quote because it is regional.

Drain hose

Usually DIY Vendor replaces this part if it's missing or broken

DIY.

Check, in this order

  1. Inspect the full run of hose for kinks, crushing behind the machine, and splits at both clamps.
  2. Verify the standpipe height against the manual's 24-96 in (61-244 cm) window; too high causes OE, too low siphons.
  3. Confirm there is no airtight seal at the standpipe - the manual warns this siphons water out of the drum.

Before you open anything

Tools

The repair, in order

  1. Pull the machine out far enough to see the whole hose run.
  2. Check for kinks, crushing behind the cabinet and splits at both clamps.
  3. Confirm the standpipe height sits inside the manual's 24–96 in (61–244 cm) window.
  4. Make sure the connection is NOT airtight — the manual warns a sealed joint siphons the drum.
  5. Replace the hose if split, reseating both clamps.

How you know it worked. A full drain step with no pooling behind the machine and no OE.

Filmed on this exact machine
LG Washer Drain Hose Assembly Replacement AEM74772903RepairClinic.com · 9:47

PartTypeListingPricePrice checked
AEM74772903OEMGenuine LG AEM74772903 Hose Assembly,Drain$77.93Buy
AEM74772903AftermarketSUPPLYZ Direct Replacement for LG AEM74772903 Washer Hose Assembly Dra$85.91Buy
Prices are a snapshot taken on the date shown and are not monitored. Check the retailer before buying.

Worth fixing? Repair — the part is a small fraction of a new machine. Part — against $729.00 for a new machine (10.7%).Part cost only. A service call adds a diagnostic fee plus labour, which we do not quote because it is regional.

Shock absorber

Technician only Vendor replaces this part if it's missing or broken
Stop. DIY but replace in pairs/sets. If the drum has dropped or the spider arm is cracked, that is a technician (or replace) job.
Try this first — it costs nothing. Redistribute the load and re-level the machine - manual: UE causes.

Check, in this order

  1. Rule out the load first - the manual lists small loads, mixed weights and tangling as UE causes before any part is at fault.
  2. Check the machine is level and the leveling legs are locked.
  3. Push the drum down by hand; a good absorber resists and returns slowly, a dead one drops freely.

Before you open anything

Filmed on this exact machine
LG Washer Front Shock Absorber Replacement ACV72909503RepairClinic.com · 7:52

Parts exist for this component and are deliberately not listed here: this is not a repair to attempt yourself.

Worth fixing? Repair — the part is a small fraction of a new machine. Part — against $729.00 for a new machine (2.7%).Part cost only. A service call adds a diagnostic fee plus labour, which we do not quote because it is regional.

Control board

Technician only Vendor replaces this part if it's missing or broken
Stop. Borderline. The board is the most expensive part on this machine and is commonly misdiagnosed - get a technician to confirm before buying one.

Check, in this order

  1. Confirm power at the outlet and that PF (power failure) is not simply latched - press Start/Pause first.
  2. Rule out the cheaper failures the board gets blamed for (pump, valve, door lock) before buying a board.
  3. Look for visible scorching or swollen capacitors on the board.

Before you open anything

Filmed on this exact machine
LG Washer Main Control Board Replacement EBR86771821RepairClinic.com · 4:56

Parts exist for this component and are deliberately not listed here: this is not a repair to attempt yourself.

Worth fixing? Weigh it — this part is a meaningful share of a new machine, and a technician visit adds to it. Part — against $729.00 for a new machine (54.9%).Part cost only. A service call adds a diagnostic fee plus labour, which we do not quote because it is regional.

Motor stator

Technician only Vendor replaces this part if it's missing or broken
Stop. TECHNICIAN. LG's own manual escalates a persistent LE to service. Direct-drive stator work involves the rotor bolt and heavy assemblies.

Check, in this order

  1. Follow the manual first: let the washer stand 30 minutes and restart - LE can latch from a temporary overload.
  2. Check nothing is jamming the drum (a garment through the boot, a foreign object).
  3. If LE returns after the 30-minute reset, LG's manual says call for service.

Before you open anything

Filmed on this exact machine
LG Washer Motor Stator Replacement AJB73816004RepairClinic.com · 4:55

Parts exist for this component and are deliberately not listed here: this is not a repair to attempt yourself.

Worth fixing? Weigh it — this part is a meaningful share of a new machine, and a technician visit adds to it. Part — against $729.00 for a new machine (19.2%).Part cost only. A service call adds a diagnostic fee plus labour, which we do not quote because it is regional.

Water inlet valve

Usually DIY Vendor replaces this part if it's missing or broken

Replacing the valve is DIY. BUT if the display shows FE (overflow), LG's manual says close the faucets, unplug and call for service - do not attempt that one.

Try this first — it costs nothing. Clean the inlet filter screens - manual: Cleaning the Water Inlet Filters.

Check, in this order

  1. Check both faucets are fully open and the hoses are not kinked - the manual's first two IE causes.
  2. Clean the inlet filter screens (manual: MAINTENANCE > Cleaning the Water Inlet Filters); hard-water scale is a common cause and needs no parts.
  3. If the machine fills with the power off, the valve is stuck open and must be replaced.

Before you open anything

Tools

The repair, in order

  1. Close both faucets and unscrew the inlet hoses from the back of the machine.
  2. Pull the filter screens out with pliers and soak them in white vinegar (manual: Cleaning the Water Inlet Filters) — scale here causes IE with no part needed.
  3. If the screens were clean, remove the top panel to reach the valve body.
  4. Photograph the wiring and hose positions — hot and cold are not interchangeable.
  5. Swap the valve, reconnect in the photographed order, and reattach the hoses.
  6. Open the faucets and check for weeping at both couplings before running a cycle.

How you know it worked. Machine fills at a normal rate on a cold and a warm cycle, and does NOT fill when powered off.

Filmed on this exact machine
LG Washer Cold Water Inlet Valve Replacement 5221ER1003SRepairClinic.com · 5:05

PartTypeListingPricePrice checked
5221ER1003SOEMLG 5221ER1003S Washer Water Inlet Valve Assembly$87.94Buy
5221ER1003SAftermarketERP 5221ER1003S Washer Water Valve$20.59Buy
5220FR2006ZOEMOEM 5220FR2006Z Water Inlet Valve Compatible With Some LG Washer and W$19.99Buy
5220FR2006ZAftermarket5220FR2006Z Washing Machine Inlet Valve, for LG Front Load Washers$16.99Buy
Prices are a snapshot taken on the date shown and are not monitored. Check the retailer before buying.

Worth fixing? Repair — the part is a small fraction of a new machine. Part — against $729.00 for a new machine (2.3%).Part cost only. A service call adds a diagnostic fee plus labour, which we do not quote because it is regional.

Heating element

Technician only Vendor replaces this part if it's missing or broken
Stop. TECHNICIAN for a persistent tE - LG's manual escalates it explicitly. The element itself is a DIY part only once a technician has confirmed the diagnosis.

Check, in this order

  1. Confirm the cycle actually heats - many cold/eco cycles never do, which is not a fault.
  2. Follow the manual's tE step: unplug 60 minutes, restore power, retry.
  3. If tE persists after that reset, LG says call for service.

Before you open anything

Filmed on this exact machine
LG Washer Heating Element Replacement AEG33121501RepairClinic.com · 9:22

Parts exist for this component and are deliberately not listed here: this is not a repair to attempt yourself.

Worth fixing? Repair — the part is a small fraction of a new machine. Part — against $729.00 for a new machine (2.3%).Part cost only. A service call adds a diagnostic fee plus labour, which we do not quote because it is regional.

Pressure switch

Technician only Vendor replaces this part if it's missing or broken
Stop. TECHNICIAN. LG's manual for PE says close the faucets, unplug and call for service.

Check, in this order

  1. Check the clear pressure hose from the tub to the switch for kinks, water or debris - a blocked hose mimics a dead switch.
  2. Look for detergent sludge in the hose port.

Before you open anything

Filmed on this exact machine
LG Washer Pressure Switch Replacement EBF63534901RepairClinic.com · 2:15

Parts exist for this component and are deliberately not listed here: this is not a repair to attempt yourself.

Worth fixing? Repair — the part is a small fraction of a new machine. Part — against $729.00 for a new machine (2.3%).Part cost only. A service call adds a diagnostic fee plus labour, which we do not quote because it is regional.

Dispenser

Usually DIY Vendor replaces this part if it's missing or broken

DIY.

Check, in this order

  1. Confirm the leak is the housing and not the drawer seal or the inlet hose above it.

Before you open anything

Tools

The repair, in order

  1. Confirm the leak is the housing and not the drawer seal or the feed hose above it.
  2. Remove the top panel to reach the housing and its hoses.
  3. Photograph hose positions, swap the housing, reseat every clamp.

How you know it worked. No water escaping around the drawer on a fill.

Filmed on this exact machine
LG Washer Dispenser Assembly Replacement ACZ74070508RepairClinic.com · 6:42

PartTypeListingPricePrice checked
ACZ74070508AftermarketCompatible Replacement for LG ACZ74070508 Washer Dispenser Assembly$203.00Buy
MCU62441102AftermarketYesParts MCU62441102 Durable Washer Dispenser$51.55Buy
Prices are a snapshot taken on the date shown and are not monitored. Check the retailer before buying.

Worth fixing? Repair — the part is a small fraction of a new machine. Part — against $729.00 for a new machine (7.1%).Part cost only. A service call adds a diagnostic fee plus labour, which we do not quote because it is regional.

Door lock

Usually DIY Vendor replaces this part if it's missing or broken

Mechanical latch replacement is DIY; a repeating dE after a proper close is escalated to service by LG's manual.

Check, in this order

  1. Make sure nothing (a garment corner) is trapped in the door and it latches fully home.
  2. The manual's escalation: if the message keeps appearing, unplug the power cord and call for service.

Before you open anything

Tools

The repair, in order

  1. Confirm nothing is trapped in the door and it latches fully home.
  2. Peel back the boot's outer clamp to expose the lock's screws.
  3. Photograph the connector, then release it.
  4. Fit the new lock, reseat the boot clamp fully, and reconnect.

How you know it worked. The door locks at cycle start and releases at the end with no dE.

Filmed on this exact machine
LG Washer Door Lock Replacement EBF61315802RepairClinic.com · 8:29

PartTypeListingPricePrice checked
EBF61315802OEMLG EBF61315802 Genuine OEM Switch Assembly for LG Washing Machines$49.70Buy
EBF61315802AftermarketEBF61315802 Washer Door Lock Switch Assembly for LG Kenmore Washing Ma$16.99Buy
Prices are a snapshot taken on the date shown and are not monitored. Check the retailer before buying.

Worth fixing? Repair — the part is a small fraction of a new machine. Part — against $729.00 for a new machine (2.3%).Part cost only. A service call adds a diagnostic fee plus labour, which we do not quote because it is regional.

If you replace it instead

Configuration-matched to this machine (front, ~4.5 cu ft). Prices are UPC-verified Amazon listings, not estimates. Like-for-like replacement rarely pays for itself on energy alone — replace for fit and features, or because the repair maths above says so.

ModelCapacityEnergy costPricePrice checked
Samsung WF45T60**A*
Digits marked * vary by colour/finish; any model in this series matches.
4.5 cu ft$16.95/yr$729.0019 Jul 2026See it
LG WM3400C*
Digits marked * vary by colour/finish; any model in this series matches.
4.5 cu ft$18.83/yr$769.0019 Jul 2026See it
Electrolux ELFW7637***
Digits marked * vary by colour/finish; any model in this series matches.
4.5 cu ft$16.01/yr$899.0019 Jul 2026See it
A candidate must match this machine's configuration (style, fuel and defrost class) before price or efficiency is considered. Prices are a snapshot from the date shown; availability is not monitored — check the retailer before buying.
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