LG Dishwasher Error E3
⚡ Quick Answer: The LG dishwasher E3 error indicates a heating-related fault, meaning the appliance cannot heat water to the required temperature. This issue often le... ⚠️ Difficulty Varies
What Does Error E3 Mean?
The LG dishwasher E3 error indicates a heating-related fault, meaning the appliance cannot heat water to the required temperature. This issue often leads to the dishwasher stopping mid-cycle, leaving water cold during wash cycles, and displaying the E3 code on the control panel. Common causes include a malfunctioning heating element, a faulty thermostat or temperature sensor, and potential control board or wiring issues affecting the heating system.
Common Symptoms:
- Dishwasher stops mid‑cycle
- Water remains cold during wash cycles
- E3 displayed on control panel
Possible Causes
- Heating element malfunction (medium)
- Faulty thermostat or temperature sensor (medium)
- Control board or wiring issues affecting heating system (low)
How to Fix Error E3
DIY Fix Basic dishwasher reset and checks
- Turn off and unplug the dishwasher (or switch off circuit breaker) for 5–10 minutes.
- Restore power and run a test cycle to see if E3 persists.
- Ensure the dishwasher is level and the door is fully closed.
Technician Only Diagnose and replace heating components
- Disconnect power to the dishwasher.
- Access the lower access panel to locate the heating element and temperature sensor.
- Test heating element and thermostat for continuity with a multimeter.
- Replace the heating element or thermostat if faulty.
- Inspect wiring harness and control board connections tied to heating circuit.
Parts needed: Heating element, Thermostat/temperature sensor, Control board (if required)
- If you’re unfamiliar with electrical/mechanical diagnosis
- If replacement parts testing requires professional tools
- If the error persists after basic troubleshooting
Next step
Choose the next step for E3
Confirm the diagnosis before ordering. An error code can identify the system involved, but it does not prove that a specific part has failed.
Most relevant component to inspect
Heating Element
Heats the water or air inside the appliance to the required temperature.
- Typical part-only price
- $40 - $95
- DIY difficulty
- Medium
- Estimated time
- 30-45 mins
Where can I find the model number?
Check the rating label around the door, lid, frame, rear panel, or inside the appliance cabinet. Use the complete model number, including suffixes.
Verify the complete model and part number on the retailer's compatibility page before ordering.
Other parts options
Check related components first; use model search as a fallback.
Thermostat
Regulates temperature by turning the heating or cooling system on or off.
Temperature Sensor
Monitors the internal temperature to ensure correct operation and prevent overheating.
Main Control Board
The central brain of the appliance that controls all components, cycles, and timings.
Model-compatible Dishwasher parts
Enter the complete model number to browse compatible replacement parts. This is a model-based parts search, not a diagnosis that a specific component failed.
Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. We may earn a commission from other qualifying purchases or service requests made through links on this page, at no additional cost to you. Recommendations are based on repair relevance, not commission rate.
Optional routine care
Maintenance supplies
These products support cleaning or routine upkeep. They are separate from the possible repair components above and are not claimed to fix this error code or symptom.
Dishwasher Cleaner and Descaler
Supports routine removal of mineral scale, grease, and odor. It is maintenance, not a repair for a failed pump, valve, or control.
Braided Dishwasher Inlet Hose
For replacement of an externally damaged supply hose. Verify connection size, length, and appliance installation requirements before ordering.
Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. Recommendations are based on routine-care relevance, not commission rate.
Technical Specifications
| note | The previous model-independent part specification was removed. Verify the full model number and diagnosis in the manufacturer's official parts catalog before ordering. |
|---|---|
| part_number | None |
Common Questions
What does E3 error mean on LG dishwasher?
E3 error indicates a heating fault, preventing the dishwasher from heating water properly.
Can I fix LG dishwasher E3 error myself?
Yes, you can try a basic reset or check for level and door closure, but complex issues may require a technician.
How much does it cost to fix E3 error?
Repair costs range from $100 to $400, depending on parts and labor needed.
When should I call a technician for E3?
Call a technician if you're unfamiliar with electrical diagnosis or if the error persists after basic troubleshooting.
Sources & References
- Common LG Dishwasher Error Codes and How to Fix (community)
Data last verified: 2026-07-31
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