Common error codes our technicians see in the field. Find your code, learn what it means, and book a diagnostic if you need one.
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Applied to the cost of the repair when work is done.
Diagnostic visit · same flat rate for all appliances
Warranty: 6-month parts, 3-month labor. Technician quotes the repair on-site before any work.
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Below are 29 common LG error codes our technicians see in the field, ordered by severity. Find your code, see what it typically means, and call us if you need expert help. transparent service-call pricing (applied to repair).
| Code | What it means |
|---|---|
| E6 | Heating Element Failure Models: LG ThinQ, InstaView, TwinWash Fix: Technician will test and replace the heating element. |
| E9 | Water Leak Detected Models: LG ThinQ, InstaView, TwinWash Fix: Technician will inspect water inlet valve, drain hose, and tub seal for leaks. |
| F2 | Main Control Board Fault Models: LG ThinQ, InstaView, TwinWash Fix: Technician will diagnose and replace the main control board. |
| F7 | Heating Element Fault Models: LG ThinQ, InstaView, TwinWash Fix: Technician will test and replace the heating element. |
| OE | Water Leak Detected Models: LG ThinQ, InstaView, TwinWash Fix: Technician will inspect water inlet valve, drain hose, and tub seal for leaks. |
| Code | What it means |
|---|---|
| dE | Door Error Models: LG ThinQ, InstaView, TwinWash Fix: Technician will inspect door latch, lock mechanism, and door switch. |
| E1 | Water Level Sensor Fault Models: LG ThinQ, InstaView, TwinWash Fix: Technician will inspect and replace the water level sensor. |
| E2 | Drain Hose Issue Models: LG ThinQ, InstaView, TwinWash Fix: Technician will check for kinks or blockages in the drain hose. |
| E3 | Motor Overload or Fault Models: LG ThinQ, InstaView, TwinWash Fix: Technician will inspect motor, drive belt, and control board. |
| E4 | Door Lock Malfunction Models: LG ThinQ, InstaView, TwinWash Fix: Technician will inspect and replace the door lock assembly. |
| E5 | Water Supply Issue Models: LG ThinQ, InstaView, TwinWash Fix: Technician will check water pressure, inlet valve, and hoses. |
| E7 | Temperature Sensor Fault Models: LG ThinQ, InstaView, TwinWash Fix: Technician will inspect and replace the temperature sensor (thermistor). |
| E8 | Drain Pump Malfunction Models: LG ThinQ, InstaView, TwinWash Fix: Technician will inspect and clean or replace the drain pump. |
| F1 | Communication Error Models: LG ThinQ, InstaView, TwinWash Fix: Technician will check wiring harness and main control board. |
| F3 | User Interface Board Fault Models: LG ThinQ, InstaView, TwinWash Fix: Technician will inspect and replace the user interface control panel. |
| F4 | Motor Control Board Fault Models: LG ThinQ, InstaView, TwinWash Fix: Technician will inspect and replace the motor control board. |
| F5 | Pressure Sensor Fault Models: LG ThinQ, InstaView, TwinWash Fix: Technician will inspect and replace the pressure sensor. |
| F6 | Water Level Sensor Fault Models: LG ThinQ, InstaView, TwinWash Fix: Technician will inspect and replace the water level sensor. |
| F8 | Drain Pump Fault Models: LG ThinQ, InstaView, TwinWash Fix: Technician will inspect and clean or replace the drain pump. |
| F9 | Door Lock Fault Models: LG ThinQ, InstaView, TwinWash Fix: Technician will inspect and replace the door lock assembly. |
| FE | Water Fill Error Models: LG ThinQ, InstaView, TwinWash Fix: Technician will check water level sensor, inlet valve, and air dome. |
| IE | Water Inlet Error Models: LG ThinQ, InstaView, TwinWash Fix: Technician will check water supply, inlet valve, and water pressure. |
| LE | Motor Lock Error Models: LG ThinQ, InstaView, TwinWash Fix: Technician will inspect motor, drive system, and control board. |
| tE | Temperature Error Models: LG ThinQ, InstaView, TwinWash Fix: Technician will check temperature sensor (thermistor) and heating element. |
| Code | What it means |
|---|---|
| CL | Child Lock Activated Models: LG ThinQ, InstaView, TwinWash Fix: Technician will guide user on disabling Child Lock or check control panel. |
| PF | Power Failure During Cycle Models: LG ThinQ, InstaView, TwinWash Fix: Technician will check power supply and internal connections. |
| PO | Power Error / Surge Detected Models: LG ThinQ, InstaView, TwinWash Fix: Technician will check power supply stability and internal wiring. |
| Sd | Suds Detected Models: LG ThinQ, InstaView, TwinWash Fix: Technician will check for excessive detergent use or drain system issues. |
| UE | Unbalanced Load Detected Models: LG ThinQ, InstaView, TwinWash Fix: Technician will check load distribution, suspension, and motor for issues. |
LG codes often correspond to a broader appliance issue. Match your code to a symptom below:
Call us — we've seen most LG codes in the field. transparent service-call pricing (applied to repair).
Error code meanings are based on field observation by our technicians. Some codes may indicate multiple underlying issues — a diagnostic visit confirms the root cause. We are an independent appliance repair service and not affiliated with LG or its parent manufacturer. Codes shown reflect common scenarios across the LG product line; specific behavior may vary by model year and configuration.
Five steps from your first call to the warranty receipt. No surprises.
Your technician examines the appliance, listens to your description, and notes the model + serial for parts lookup. Visual + audio-based diagnostics first — non-invasive.
Targeted tests on the failing subsystem (compressor, control board, heating element, motor, etc.) to identify the exact root cause. You get a clear explanation, not jargon.
Up-front estimate before any work begins: cost, parts, and the realistic likelihood of success vs. recommending replacement on an old or uneconomical unit. You decide.
After the repair we run the appliance through its normal cycle on-site — never "it should work now, call us if it doesn't." You sign off when it's actually working.
Receipt with warranty terms in writing. Plus a quick walkthrough of how to extend the appliance's life (filter cleaning, drain maintenance, etc.) — included free.
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