Error code reference
LG Dishwasher Error Code SE1
Steam generator error
Steam generator error – generator heater temperature is too high (over 239°F).
First step from the service manual
Check the water level sensor and thermistor.
The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.
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Get the full diagnostic procedure for SE1.
- Step-by-step tests with expected resistance, voltage, and continuity values
- Wiring diagram references and connector pinouts from the OEM service manual
- Verified part numbers when replacement is required
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