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Error code reference

LG Refrigerator Error Code Error12

Ice maker unit abnormal

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What the Error12 error code actually means

Your LG refrigerator is detecting a problem with the ice maker, meaning it cannot complete its normal cycle of making and dropping ice. This is usually caused by a faulty motor, a sensor that tracks the ice maker's movement, or a wiring issue inside the ice maker assembly. Until the problem is fixed, your ice maker will not produce ice.

Diagnostic procedure

The full Error12 procedure

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MyPros+ · DiagnosticsStep 1 preview
1
First diagnostic step
Check ice maker motor and position sensor; inspect wiring for short circuits.
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 Error12

Ranked by how often they cause this code
  1. 1Defective ice maker motor
  2. 2Defective position sensor
  3. 3Short circuit in the wiring harness
  4. 4Defective motor control circuit

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Questions people ask about Error12

What does Error12 mean on a LG refrigerator?
Error12 on an LG refrigerator indicates an abnormal condition in the ice maker unit. The fault can originate from a defective ice maker motor, a failed position sensor, a short circuit in the wiring harness, or a faulty motor control circuit. The refrigerator's control board detects that the ice maker is not completing its cycle correctly and displays this code to alert you to the problem.
Is it safe to use my LG refrigerator while Error12 is displayed?
Yes, Error12 affects only the ice maker system and does not impact the refrigerator or freezer cooling functions. Your food will remain safely refrigerated and frozen. However, the ice maker will not produce ice until the fault is corrected, so you should plan for alternative ice sources in the meantime.
Will resetting my LG refrigerator clear the Error12 code?
A reset may temporarily clear the Error12 code, but it will return if the underlying fault in the ice maker motor, position sensor, wiring, or motor control circuit has not been resolved. To permanently clear the code, the defective component must be identified and repaired or replaced. Resetting can be useful as a first step to confirm whether the error is intermittent, but it is not a fix on its own.
Can I fix Error12 on my LG refrigerator myself?
Some causes of Error12 are DIY-friendly, such as inspecting and repairing a damaged wiring harness. However, replacing the ice maker motor, position sensor, or ice maker assembly requires disassembly of the ice maker unit and basic electrical testing skills. If you are comfortable using a multimeter and following wiring diagrams, you may be able to diagnose and resolve the issue yourself, but a qualified technician is recommended for motor or circuit-related repairs.
How much does it cost to repair Error12 on an LG refrigerator?
Repair costs vary depending on the faulty component. A replacement ice maker assembly typically costs between 80 and 200 dollars for the part alone. If you hire a technician, expect to pay an additional 100 to 200 dollars in labor, bringing the total repair range to roughly 180 to 400 dollars depending on your location and service provider.

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