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Error code reference

LG Oven Error Code bAd LinE

Power connection is installed improperly.

LG codesLG oven codes

Power connection is installed improperly.

First step from the service manual

Disconnect the power. Reconnect the power connection properly.

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

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What bAd LinE means on a LG oven

The bAd LinE error code on an LG oven indicates that the appliance has detected an improper power connection. This error is specifically related to the incoming line voltage supply and how the oven is wired into the electrical circuit. LG ovens, particularly freestanding and slide-in ranges, require a properly configured 240-volt connection with two hot legs, a neutral, and a ground. If those legs are swapped, missing, or inconsistently delivering voltage, the control board's power monitoring circuitry will flag the bAd LinE condition.

The most common trigger is an incorrectly wired terminal block at the rear of the oven, where the power cord or hardwired connection meets the appliance. This can happen during installation if wires are connected to the wrong terminals, if a wire has loosened over time, or if the wrong type of power cord was used (for example, a 3-wire cord installed in a jurisdiction requiring a 4-wire configuration). The control board continuously monitors the power input and will display this error when it detects an imbalance or an improperly phased connection.

Because this error relates directly to incoming line power, it is a safety-level fault. The oven may refuse to operate fully until the connection issue is resolved. The first corrective action is to disconnect power at the circuit breaker, then carefully inspect and reseat the power connection at the terminal block, ensuring each wire is secured to its correct terminal with no loose strands or reversed positions.

Source: manufacturer service documentation.

Common causes of bAd LinE

  1. 01

    Incorrectly wired terminal block

    Wiring / connection

    During installation, individual wires may have been connected to the wrong terminals on the oven's terminal block. Check that each wire matches the correct terminal designation (L1, L2, neutral, and ground) as labeled on the block.

  2. 02

    Loose or partially connected wire

    Wiring / connection

    A wire that was not fully tightened at the terminal block can create an intermittent or missing voltage leg. Visually inspect each terminal screw and ensure all wires are firmly secured with no movement.

  3. 03

    Wrong power cord type installed

    Part replacement

    Using a 3-wire cord in an application that requires a 4-wire cord, or vice versa, can cause this error. Confirm that the installed cord type matches local electrical code requirements and the oven's wiring configuration.

  4. 04

    Wiring issue at the wall outlet or junction box

    Wiring / connection

    The problem may originate at the wall receptacle or hardwired junction box rather than at the oven itself. A loose or swapped wire at the outlet can result in the same improper voltage condition the oven is detecting.

  5. 05

    Damaged power cord

    Part replacement

    A physically damaged cord with a broken internal conductor can deliver incomplete or unbalanced voltage to the oven. Inspect the cord along its full length for cuts, pinching, or burn marks near the plug or terminal connection.

See the test procedure for each cause

Frequently asked questions about bAd LinE

What does bAd LinE mean on a LG oven?
The bAd LinE error code means your LG oven has detected that the power connection is installed improperly. It indicates an issue with the incoming 240-volt electrical supply, such as reversed, missing, or loose wires at the terminal block. This is a safety-level fault that may prevent normal oven operation until the wiring is corrected.
How do I fix the bAd LinE error on my LG oven?
Start by turning off the circuit breaker that supplies power to the oven. Then access the terminal block at the rear of the appliance and carefully inspect each wire connection, making sure every wire is secured to its correct terminal. Once connections are properly seated and tightened, restore power and check whether the error clears. If the error persists, the wiring at the wall outlet or junction box should also be inspected, ideally by a licensed electrician.
Is the bAd LinE error on an LG oven a safety concern?
Yes, this error should be treated as a safety concern because it indicates an incorrect electrical connection. An improperly wired oven can pose a risk of electrical shock or fire. Do not attempt to use the oven until the power connection has been inspected and corrected. Always turn off power at the breaker before working on any electrical connections.
Will resetting my LG oven clear the bAd LinE error?
Simply resetting the oven by cutting and restoring power will not permanently clear the bAd LinE error if the underlying wiring problem has not been fixed. The control board will detect the improper connection again and redisplay the error code. The error will only clear once the power connection has been physically corrected and properly secured.
How much does it cost to fix the bAd LinE error on an LG oven?
If the fix involves only reconnecting or tightening wires at the terminal block, costs may be minimal, covering only a service call fee typically in the range of $75 to $150. If a new power cord is needed, parts generally cost between $20 and $60 depending on the cord type. If the issue is traced to the home's wiring or outlet, electrician fees could bring the total to $150 to $400 or more depending on the complexity of the repair.

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