LE
LG Low Voltage or Line Error

LG oven shows LE and may not heat or may shut off unexpectedly.

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Incorrect supply voltage to range, Loose power cord connections, Faulty house breaker or wiring, Internal power filter board issue

How to Fix / Troubleshooting

Safety first: Working on live electrical circuits is hazardous. If you are not trained, contact a licensed electrician.

  • Check breaker: Ensure the double-pole breaker feeding the range is fully ON and not partially tripped. Reset if necessary.
  • Verify voltage: Using a multimeter, confirm 240 VAC (or specified voltage) at the range receptacle and at the terminal block where the power cord connects to the oven.
  • Inspect terminal block: With power OFF, check for burned or loose connections at the terminal block. Tighten screws and replace any damaged lugs or wiring.
  • Internal wiring: If supply voltage is correct but LE persists, inspect the internal power filter board and harness for damage. Replace the filter or main control board if defective.
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Repair Difficulty

Professional Required 5/5

Required Part

Power Cord / Terminal Block Assembly
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