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Error code reference

LG Dishwasher Error Code 00:E1

Steam generator error-the generator heater temperature is high (over 239°F).

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What the 00:E1 error code actually means

Your LG dishwasher detected that the steam generator got too hot during the wash cycle, so it shut itself down to prevent damage. This usually happens because a water sensor or temperature sensor isn't working correctly, causing the heater to overheat. A technician will need to check those sensors and possibly replace a part before the dishwasher can run safely again.

Diagnostic procedure

The full 00:E1 procedure

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1
First diagnostic step
Check the water level sensor and thermistor.
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Most common causes of 00:E1

Ranked by how often they cause this code
  1. 1Faulty water level sensor
  2. 2Defective or out-of-range thermistor
  3. 3Mineral scale buildup in the steam generator
  4. 4Failed steam generator heater element
  5. 5Defective control board

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Questions people ask about 00:E1

What does 00:E1 mean on a LG dishwasher?
The 00:E1 code on an LG dishwasher signals a steam generator error where the heater temperature has exceeded 239°F. The dishwasher shuts down automatically to prevent overheating damage. The most common causes are a malfunctioning water level sensor or a faulty thermistor inside the steam generator system.
Is it safe to keep using my LG dishwasher when 00:E1 is showing?
No, you should not continue running the dishwasher while the 00:E1 error is active. The code indicates that the steam generator heater has reached a dangerously high temperature, and continued operation could damage internal components or create a safety hazard. Wait until the fault has been properly diagnosed and repaired before running another cycle.
How much does it cost to repair the 00:E1 error on an LG dishwasher?
Repair costs depend on which component has failed. Replacing a thermistor or water level sensor is generally a lower-cost repair, typically ranging from $75 to $200 including parts and labor. If the steam generator heater element or control board needs replacement, costs can range from $150 to $400 or more. Getting a diagnostic evaluation from a qualified technician will provide a more accurate estimate for your specific situation.
Can I fix the 00:E1 error myself?
A knowledgeable DIYer can start by inspecting and testing the water level sensor and thermistor for damage or incorrect readings. If either component tests outside its acceptable range, replacing it may clear the fault. However, if the issue involves the steam generator heater element or control board, professional repair is recommended due to the complexity and electrical risk involved.
Will resetting my LG dishwasher clear the 00:E1 error?
A reset may temporarily clear the code, but the error will return if the underlying cause, such as a bad water level sensor or thermistor, has not been repaired. Resetting without fixing the root problem means the steam generator heater is at risk of overheating again. Always address the diagnosed component failure before relying on a reset.

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