LG Washer-Dryer Combo Error Codes: Complete List with Fixes

LG washer-dryer combos — including the WashCombo all-in-one (ventless heat pump drying) and WashTower stacked units — combine washing and drying functions in a single unit or integrated stack. These units display error codes from both washing and drying systems, plus combo-specific codes for the heat pump, condensation system, and water recycling. This guide covers every LG combo error code with real part numbers, diagnostic procedures, and repair guidance for 2024–2026 models.

How LG Combo Error Codes Work

LG WashCombo all-in-one units display error codes that can originate from either the wash system or the dry system. Error codes from the wash cycle use the same format as standalone LG washers (OE, UE, dE, etc.), while drying errors use codes specific to the ventless heat pump system. The WashTower uses the same error codes as standalone washers and dryers but communicates between the stacked units via an internal bus.

Before troubleshooting:

1. Press Power to stop the current cycle.
2. Unplug the unit for 60 seconds.
3. Plug back in and note which phase (wash or dry) the error appeared in — this narrows the diagnosis.

WashCombo all-in-one units have a unique architecture: they use a heat pump condenser and evaporator instead of a traditional vent, meaning they recirculate and dehumidify air rather than exhausting it. This eliminates vent-related issues but introduces heat pump-specific error codes.

OE — Drain Error (Wash or Dry Phase)

The unit cannot drain water within the allotted time. On combo units, OE can appear during washing OR during the drying condensation drain cycle.

Common causes:

• Clogged drain pump filter (most common — coins, hair ties, lint)
• Kinked drain hose or standpipe blockage
• Drain pump motor failure (part EAU62043401 — Drain Pump Motor)
• Condensation drain path blocked (WashCombo-specific — lint from the drying cycle accumulates in the condensate drain line)
• Drain hose height incorrect (must be 18–96 inches above floor)

How to fix:

1. Open the drain pump filter access panel at the front bottom. Place towels underneath, slowly unscrew the filter cap, and remove debris.
2. Check the drain hose for kinks and verify height is correct.
3. For WashCombo units: if OE appears specifically during the dry cycle, the condensate drain line may be clogged. This line routes moisture collected by the heat pump condenser to the drain. Access it from the rear panel — flush with warm water.
4. Run a Spin Only cycle to test drain function after clearing the filter.
5. If the pump hums but does not drain, the impeller may be cracked or the motor seized.

Part cost: Drain pump filter (AJU75152604) $5–$15. Drain pump motor (EAU62043401) $25–$50. Professional repair: $90–$220.

UE — Unbalanced Load (Wash Phase)

The drum is unbalanced during the spin cycle. LG combo units have the same vibration sensors as standalone washers.

Common causes:

• Heavy items bunched on one side of the drum
• Single item washed alone (jeans, comforter)
• Unit not level on all four feet
• Worn shock absorbers or suspension springs
• WashTower units more sensitive to balance due to stacked configuration

How to fix:

1. Open the door and redistribute the load evenly around the drum.
2. Add a few towels if washing a single large item.
3. Verify the unit is level with a bubble level on top. WashTower units are especially sensitive to leveling because imbalance vibration amplifies through the stacked structure.
4. If UE occurs frequently with normal loads, the shock absorbers (part AKA74236202 — Suspension Rod Kit) may be worn. The drum should not sway more than 1 inch when pushed.
5. On WashTower units, ensure the stacking bracket is properly secured — a loose bracket amplifies vibration transfer.

Part cost: Suspension rod kit (AKA74236202) $30–$60. Professional repair: $80–$180.

dE / dE1 / dE2 — Door Lock Error

The door cannot be confirmed as locked (dE1 at cycle start) or cannot be unlocked (dE2 after cycle end).

Common causes:

• Clothing or debris caught in the door boot gasket
• Door lock assembly failure (part EBF61215202)
• Door boot gasket (part MDS47123604) warped or damaged
• Wire harness pinched at the hinge flex point
• PTC lock element needs cool-down time after drying cycle (dE2)

How to fix:

1. Check the rubber door boot gasket for small items preventing full closure.
2. Clean the door latch area and strike plate — soap and lint residue prevent proper engagement.
3. For dE2 after a drying cycle: wait 3 minutes. The PTC (positive temperature coefficient) lock element needs time to cool before releasing. This is normal behavior on combo units that run long dry cycles.
4. Close the door firmly and listen for the lock motor engaging — a click followed by a brief whir.
5. Test the door lock switch with a multimeter for continuity when locked.

Part cost: Door lock assembly (EBF61215202) $25–$50. Door boot gasket (MDS47123604) $40–$80. Professional repair: $90–$230.

LE / LE1 — Motor Lock / Overload Error

The Inverter Direct Drive motor is overloaded or locked and cannot rotate the drum.

Common causes:

• Overloaded drum (combo units have smaller capacity than full-size — typically 4.5–5.0 cu ft)
• Foreign object lodged between inner and outer drum (coins, underwire)
• Hall sensor failure (part EBG61285804 — Rotor Position Sensor)
• Rotor bolt loosened from vibration
• Stator winding damage

How to fix:

1. Reduce the load size. LG combo units should be filled to about 65–70% capacity — lower than standalone washers due to the combined wash/dry drum.
2. Turn the drum by hand with the unit off. It should rotate freely. Grinding or resistance indicates a foreign object or bearing issue.
3. Run the diagnostic motor test (Spin Speed + Soil Level held for 3 seconds).
4. Check the rotor bolt at the rear of the drum — torque to 35 ft-lbs. A loose rotor bolt is the most common cause of LE in LG Direct Drive units and is a $2 fix that avoids a $400 repair.
5. If the drum turns freely and the bolt is tight, the hall sensor (EBG61285804, $10–$20) is the likely culprit.

Part cost: Hall sensor (EBG61285804) $10–$20. Stator assembly (EAU62043403) $80–$150. Professional repair: $220–$420.

tE — Thermistor Error (Wash or Dry Phase)

A temperature sensor is reading abnormally. On combo units, this can be the wash water thermistor OR the heat pump evaporator/condenser thermistor.

Common causes:

• Wash water thermistor failure (part EBG61285804)
• Heat pump evaporator thermistor failure (WashCombo-specific, part EBG61285821)
• Heat pump condenser thermistor failure (WashCombo-specific, part EBG61285822)
• Sacramento hard water scale on the wash heater element causing sensor misreads
• Wire harness damage from vibration

How to fix:

1. Note which phase the tE appeared in — wash or dry. This identifies which thermistor circuit.
2. For wash-phase tE: locate the water thermistor on the outer tub. Measure resistance at room temp — expect approximately 10k ohms (NTC).
3. For dry-phase tE on WashCombo units: the heat pump has two thermistors — one on the evaporator and one on the condenser. Access requires removing the rear panel. Measure each sensor at room temperature — both should read approximately 10k ohms.
4. Check for hard water scale on the wash heater element (TrueSteam models). Sacramento hard water accelerates scale buildup, causing localized overheating that confuses the thermistor.
5. If sensors test within spec, the main board analog circuit for that sensor channel has failed.

Part cost: Water thermistor (EBG61285804) $10–$25. Heat pump thermistors (EBG61285821/22) $15–$30 each. Professional repair: $150–$320.

dE4 — Heat Pump Condenser Temperature Error (WashCombo-Specific)

The heat pump condenser is not reaching the expected temperature during the drying cycle. This code is unique to WashCombo ventless heat pump dryer units.

Common causes:

• Heat pump refrigerant leak or low charge
• Condenser coil obstructed by lint (part of the self-cleaning condenser system may have failed)
• Compressor failure in the heat pump circuit
• Condenser thermistor failure (part EBG61285822)
• Self-cleaning condenser rinse nozzle clogged

How to fix:

1. LG WashCombo units have a self-cleaning condenser that rinses lint from the condenser coil during certain cycles. If dE4 appears, the condenser may be lint-clogged because the self-clean system is not functioning.
2. Access the condenser area (behind the rear panel or a dedicated access panel) and inspect for lint accumulation on the condenser coils.
3. Check the self-cleaning condenser rinse nozzle for clogs — it sprays water across the condenser surface during wash-dry transitions.
4. Test the condenser thermistor (EBG61285822) — at room temperature it should read approximately 10k ohms.
5. If the condenser is clean and the thermistor is functional, the heat pump compressor or refrigerant charge may be the issue — this requires professional sealed system service.

Part cost: Condenser thermistor (EBG61285822) $15–$30. Self-cleaning nozzle $10–$25. Heat pump compressor $200–$400 (professional only). Professional repair: $180–$450.

FE — Water Overflow Error

The unit detects water above the safe level. On combo units, FE can occur during wash fill OR when the heat pump condensation system produces excess water that cannot drain fast enough.

Common causes:

• Water inlet valve stuck open (part AJU72912268)
• Pressure sensor failure (part 6501EA1001R)
• Pressure hose kinked, disconnected, or blocked with detergent residue
• Condensation drain rate exceeding pump capacity during intensive drying cycles (WashCombo)

How to fix:

1. Turn off water supply valves immediately.
2. For wash-phase FE: check the water inlet valve and pressure sensor using the same procedures as a standalone washer.
3. For dry-phase FE on WashCombo units: the heat pump extracts moisture from clothes and condenses it. This water drains through the pump. If drying a very wet load, the condensation rate can temporarily exceed drain capacity. Ensure the drain pump filter is clear and the drain hose is not restricted.
4. Check the pressure hose (air hose from tub to sensor) for kinks or blockage from detergent residue.

Part cost: Water inlet valve (AJU72912268) $25–$50. Pressure sensor (6501EA1001R) $20–$40. Professional repair: $150–$280.

PE — Pressure Sensor Error

The water level pressure sensor is sending incorrect or no signal to the control board.

Common causes:

• Pressure hose disconnected, kinked, or blocked (part AEM69493802)
• Pressure sensor failure (part 6501EA1001R)
• Main board connector corrosion
• Detergent residue hardened inside the pressure hose

How to fix:

1. Access the pressure sensor (typically on the top of the cabinet rear wall).
2. Check the small rubber air hose from the outer tub to the sensor — blow gently to confirm it is clear.
3. Look for cracks, splits, or detachment at either hose end.
4. Test the sensor — LG frequency-based sensors output a varying frequency with air pressure changes.
5. Check the main board connector for corrosion.

Part cost: Pressure sensor (6501EA1001R) $20–$40. Pressure hose (AEM69493802) $5–$15. Professional repair: $140–$260.

Cd — Dry Cycle Complete (Not an Error)

The display shows "Cd" after the drying cycle finishes. This is a status indicator, not an error code.

How to fix: No fix needed. Open the door and remove clothes. The "Cd" (Cycle Done) display clears when a new cycle is selected or the Power button is pressed.

LG Combo Unit Diagnostic Modes

1. Smart Diagnosis (Audio): Power on the unit. Call LG support (1-800-243-0000). When instructed, press and hold the Temp button while holding your phone speaker to the Power button area. The unit transmits diagnostic data.

2. LG ThinQ App Diagnosis: Open the ThinQ app, select your WashCombo or WashTower, and tap Smart Diagnosis. The app pulls error logs from both the wash and dry systems, plus heat pump status on WashCombo units.

3. Manual Test Mode: Press and hold Spin Speed + Soil Level simultaneously for 3 seconds. The unit enters test mode, cycling through motor, fill, drain, heat pump compressor (WashCombo), and sensor tests.

Frequently Asked Questions

Q: My LG WashCombo shows OE only during the drying cycle, not during washing. Why? A: The WashCombo uses a ventless heat pump that extracts moisture from clothes and condenses it to water. This condensate drains through the same drain pump and hose as wash water. If the condensate drain path is partially clogged with lint (which accumulates during drying), the pump cannot keep up with condensation and OE triggers. Flush the condensate drain line from the rear panel and clean the drain pump filter.

Q: Why does my LG WashTower show UE more often than my old standalone washer? A: WashTower units stack the dryer on top of the washer with a fixed bracket. The elevated center of gravity makes the combined unit more sensitive to imbalance vibration. Ensure the unit is perfectly level, use slightly smaller wash loads (65–70% capacity instead of 75%), and distribute heavy items evenly. The stacking bracket should be fully tightened to spec.

Q: How often should I clean the condenser on my LG WashCombo? A: LG WashCombo units have a self-cleaning condenser that rinses lint during transitions between wash and dry cycles. However, the self-cleaning nozzle can clog over time. Every 3–6 months, run a Tub Clean cycle followed by a dry-only cycle with no clothes. If you notice drying times increasing, manually inspect the condenser area for lint accumulation. In homes with pets, check more frequently.

Q: Is the heat pump in the LG WashCombo serviceable? A: The heat pump is a sealed refrigerant circuit similar to a small air conditioner. It contains the compressor, evaporator, condenser, and connecting tubing. Thermistor replacements and condenser cleaning are DIY-feasible, but any repair involving the refrigerant circuit (compressor replacement, leak repair, recharging) requires EPA 608 certification. LG covers the heat pump under a 5-year limited warranty on most WashCombo models.

Q: Can I use my LG WashCombo for drying only without washing first? A: Yes, most LG WashCombo units have a Dry Only cycle option. However, the ventless heat pump drying takes longer than a conventional vented dryer — expect 2–3 hours for a full load versus 45–60 minutes for a vented dryer. The advantage is no vent installation required and lower energy consumption. Dry Only mode is useful for re-drying items or drying hand-washed garments.

When to Call a Professional

LG combo units combine washing and drying complexity in a single machine:

• dE4 / heat pump issues on WashCombo — Heat pump compressor, refrigerant, and sealed system repairs require EPA certification and LG-specific training. The heat pump circuit is unique to WashCombo units and not found in conventional washers or dryers.
• LE with motor diagnosis — The Direct Drive motor handles both wash agitation and high-speed spin for water extraction before drying. A motor issue affects both functions. Diagnosis requires differentiating between motor, hall sensor, stator, and control board faults.
• Recurring OE during dry cycle — If the condensate drain clogs repeatedly, the self-cleaning condenser system may need service. Lint management in ventless heat pump dryers is more complex than in vented dryers.
• tE during dry phase — Heat pump thermistor replacement requires accessing the sealed heat pump area and correctly identifying which of the two thermistors has faulted.
• WashTower communication errors — The washer and dryer in WashTower units communicate through an internal bus. If one unit works but the other does not respond, the inter-unit harness or one of the two control boards needs diagnosis.

LG WashCombo or WashTower showing an error? EasyBear's certified technicians are trained on LG combo and stacked units — including the ventless heat pump WashCombo system. We offer free diagnostic visits and carry common LG combo parts. Our tech diagnoses the exact cause, explains your repair options, and completes the fix same-day in most cases. Every repair is backed by our 90-day parts and labor warranty. Schedule your free diagnosis today.