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Error code reference

LG Washer Error Code E-41

Easy/PH sensor open error.

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What the E-41 error code actually means

Your LG washer has detected that a water-sensing component called the Easy or pH sensor is not sending any signal to the control board. This usually means the sensor is disconnected, has a broken wire, or has failed internally. The washer flagged this problem to prevent running a cycle without accurate feedback from that sensor.

Diagnostic procedure

The full E-41 procedure

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1
First diagnostic step
Check sensor part and connection of sensor housing and PCB's connector.
More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
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Most common causes of E-41

Ranked by how often they cause this code
  1. 1Loose or disconnected sensor connector
  2. 2Failed Easy or pH sensor
  3. 3Corroded or damaged connector pins
  4. 4Damaged wiring harness
  5. 5Faulty main PCB

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Questions people ask about E-41

What does E-41 mean on a LG washer?
E-41 on an LG washer indicates an open circuit error in the Easy or pH sensor. The control board is not receiving any signal from that sensor, which means the circuit is broken. This can result from a disconnected connector, a failed sensor, damaged wiring, or in rare cases a faulty control board.
Is it safe to keep using my LG washer when E-41 is displayed?
It is not recommended to continue running wash cycles while E-41 is active. The error indicates the washer is not receiving valid data from the Easy or pH sensor, which means the machine cannot properly monitor or adjust the wash conditions it relies on that sensor for. Continued use without resolving the fault could lead to suboptimal wash results or additional issues.
Will resetting my LG washer clear the E-41 error code?
A power reset, such as unplugging the washer for a few minutes, may temporarily clear the code, but it will return if the underlying open circuit condition is not repaired. The E-41 code is triggered by a hardware fault that the control board detects at startup or during operation, so the error will reappear until the sensor connection, wiring, or sensor itself is physically repaired or replaced.
Can I fix the E-41 error myself?
Many E-41 cases can be resolved by a knowledgeable DIYer. Start by unplugging the washer, locating the sensor connector, and firmly reseating it at both the sensor and PCB ends. If reseating the connector does not clear the error, testing the sensor for continuity with a multimeter and inspecting the wiring harness are the next logical steps before considering a part replacement.
How much does it cost to repair an E-41 error on an LG washer?
If only a connector needs reseating or cleaning, the repair can cost nothing beyond your time. A replacement Easy or pH sensor typically runs in the range of $20 to $60 for the part. If the wiring harness requires replacement, parts and labor together can range from $80 to $200 depending on the specific model and service rates in your area. A main PCB replacement, if needed, is the most expensive possibility, often ranging from $150 to $400 or more.

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