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Error code reference

LG Cooktop Error Code IE

Cooking zone + or

LG codesLG cooktop codes

Cooking zone + or – pads held for more than 10 seconds.

First step from the service manual

Press and hold the ON/OFF pad for the cooking zone you were setting to clear.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

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What IE means on a LG cooktop

The IE error code on an LG cooktop indicates that the plus (+) or minus (-) touch pad for a specific cooking zone has been held in a pressed state for more than 10 seconds. This is a control input fault, not a heating or electrical failure. The cooktop's control board continuously monitors the duration of any touch input signal. When a single control pad registers an uninterrupted signal beyond the 10-second threshold, the board interprets this as an abnormal condition and triggers the IE code to prevent unintended power or temperature changes to that zone.

The most common cause is physical pressure on the touch pad surface, either from a pot or pan that has been pushed too far onto the control area, a liquid spill that is bridging the capacitive sensor and simulating a continuous touch, or debris such as food residue lodged against the pad. Because LG cooktops use capacitive touch technology, anything that disrupts the normal charge-sensing behavior of the pad can create a false sustained input signal that the control interprets as a prolonged button press.

This error is typically a user-correctable condition rather than a component failure. Clearing the fault requires pressing and holding the ON/OFF pad for the affected cooking zone. If the IE code returns immediately after clearing, it points to a persistent physical cause at the control panel, such as a contaminated touch surface or a damaged touch pad assembly that is sending a continuous signal to the control board.

Source: manufacturer service documentation.

Common causes of IE

  1. 01

    Object resting on the control panel

    Wiring / connection

    A pot, pan, utensil, or cloth placed over the cooktop controls can press against the plus or minus pad and hold it continuously. Check that nothing is in contact with the touch pad area and remove any items before attempting to clear the code.

  2. 02

    Liquid or food spill on the touch pad

    Wiring / connection

    Boilover or splattered liquid can bridge the capacitive sensor on the plus or minus pad, simulating a sustained press. Clean the control panel surface thoroughly with a dry cloth and allow it to dry completely before restarting the cooktop.

  3. 03

    Food debris or residue trapped at the pad edge

    Wiring / connection

    Sticky residue or solid debris lodged at the edge of a touch pad can create continuous contact with the sensor. Inspect the seams around the plus and minus pads for buildup and clean carefully with an appropriate non-abrasive cleaner.

  4. 04

    Damaged or faulty touch pad assembly

    Part replacement

    If the control surface has been scratched, cracked, or the underlying sensor layer is damaged, the affected pad may send a constant signal to the control board even when not being touched. If the IE code returns consistently after cleaning and clearing, the touch pad assembly likely needs replacement.

  5. 05

    Faulty main control board

    Part replacement

    In less common cases, the control board itself may misread input signals and falsely register a prolonged press on the plus or minus pad. This is typically suspected only after the touch pad assembly has been confirmed to be functioning correctly and the error persists.

See the test procedure for each cause

Frequently asked questions about IE

What does IE mean on a LG cooktop?
The IE code means that the plus or minus touch pad for one of the cooking zones was held down, or registered as held down, for more than 10 seconds. This triggers a control input fault to prevent the cooktop from making unintended power adjustments to that zone. It is not a heating element or electrical failure. The code can usually be cleared without any repairs.
How do I fix the IE error on my LG cooktop?
Press and hold the ON/OFF pad for the cooking zone that was being adjusted when the error appeared. This should clear the code and return the cooktop to normal operation. Before trying again, check that no objects are resting on the controls and that the touch pad surface is clean and dry. If the error comes back immediately, inspect the control panel for spills, debris, or physical damage to the touch surface.
Will resetting the cooktop clear the IE error code?
Pressing and holding the ON/OFF pad for the affected zone is the correct reset method for this specific error. Simply cutting power at the circuit breaker and restoring it may also clear the code temporarily, but if a physical cause such as a spill or object on the controls is still present, the IE error will return. Addressing the underlying cause is necessary for a lasting resolution.
Is the IE error on a LG cooktop a safety concern?
The IE code is a control protection feature, not a safety emergency. When the error is active, the cooktop prevents further input changes to that zone, which actually reduces the risk of accidental heat adjustments. However, you should check immediately whether something is resting on the control panel or whether a spill has occurred, as liquid near active electronics warrants prompt cleanup.
How much does it cost to repair an IE error on a LG cooktop if it will not clear?
If the error clears with the ON/OFF pad reset and does not return, there is no repair cost. If the touch pad assembly is damaged and needs replacement, parts and labor typically range from roughly 100 to 250 dollars depending on the specific model and local labor rates. If the main control board is at fault, replacement costs can range from approximately 200 to 450 dollars or more, making professional diagnosis a worthwhile step before ordering components.

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