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Error code reference

Samsung Range Error Code bAd LinE

The power cord is installed improperly (incorrect L1, L2, N connections).

Samsung codesSamsung range codes

The power cord is installed improperly (incorrect L1, L2, N connections).

First step from the service manual

Disconnect the power cord and check that power cord L1, L2, N is connected properly to the terminal block. Reconnect 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 Samsung range

The bAd LinE error code on a Samsung range indicates that the appliance has detected an issue with the incoming power line connections at the terminal block. Specifically, the range's control system is reading an incorrect or reversed configuration of the L1, L2, and N (neutral) wires on the power cord. This is a 240-volt circuit issue, and Samsung ranges are designed to monitor the incoming power legs to ensure both hot legs (L1 and L2) and the neutral are connected in the correct positions. When the wiring does not match the expected configuration, the control board triggers this error and prevents normal operation to protect the appliance and user.

This error most commonly occurs after a new installation or after the power cord has been replaced or reconnected. A four-wire or three-wire range power cord must be attached to the terminal block with each wire landing on its correct terminal. If L1 and L2 are swapped, or if the neutral wire is connected to a hot terminal, the control system will detect the voltage imbalance across the terminals and display bAd LinE. The terminal block is typically located at the rear lower section of the range, accessible by removing a small cover plate.

The diagnostic process is straightforward: disconnect power to the range completely, remove the terminal block cover, and verify each wire is seated on the correct labeled terminal. L1 and L2 are the outer terminals carrying the two hot legs of the 240-volt supply, and N (neutral) connects to the center terminal. After correcting the connections and securing them firmly, restore power to confirm the error clears.

Source: manufacturer service documentation.

Common causes of bAd LinE

  1. 01

    Incorrect terminal block wiring during installation

    Wiring / connection

    The most frequent cause is the power cord being connected with L1, L2, or N on the wrong terminals during initial installation or reinstallation. Visually inspect the terminal block and compare each wire's position to the wiring diagram printed on the back of the range or inside the terminal block cover.

  2. 02

    Swapped L1 and L2 hot legs

    Wiring / connection

    If the two hot wires (L1 and L2) are reversed at the terminal block, the range control system can detect the incorrect phase relationship and trigger this error. Check the labeling on the terminal block and confirm each hot wire is on its designated terminal.

  3. 03

    Neutral wire landed on a hot terminal

    Wiring / connection

    If the neutral (N) wire was mistakenly connected to one of the outer hot terminals instead of the center neutral terminal, the voltage readings across the terminals will be incorrect. This is a wiring error that requires repositioning the neutral wire to the correct center terminal.

  4. 04

    Loose or improperly secured terminal connections

    Wiring / connection

    Even if the wires are on the correct terminals, a loose connection can cause the control board to read incorrect voltage levels and trigger the bAd LinE code. Inspect each terminal screw and confirm all connections are tight and the wire is making full contact under the terminal.

  5. 05

    Damaged or incorrect replacement power cord

    Part replacement

    A power cord that is the wrong type for the installation (for example, a three-wire cord used where a four-wire cord is required, or vice versa) can result in an improper wiring configuration at the terminal block. Confirm the cord type matches the installation requirements before reconnecting.

See the test procedure for each cause

Frequently asked questions about bAd LinE

What does bAd LinE mean on a Samsung range?
The bAd LinE error means the range has detected that the power cord is not connected correctly at the terminal block on the back of the unit. The L1, L2, and N (neutral) wires must each be connected to their specific labeled terminals for the range to operate safely. This error is a protective measure that prevents the range from running when the incoming power configuration is incorrect. It does not indicate a failed component but rather a wiring problem that needs to be corrected.
How do I fix the bAd LinE error on my Samsung range?
Start by disconnecting power to the range at the circuit breaker. Remove the cover plate on the terminal block at the rear of the range and inspect where each wire from the power cord is connected. Compare the current wiring to the diagram on the appliance label and move any wires that are on the wrong terminals to their correct positions. Tighten all terminal screws securely, replace the cover, restore power, and check whether the error has cleared.
Is the bAd LinE error on a Samsung range a safety hazard?
Yes, incorrect power cord wiring is a genuine safety concern because it means the range is receiving power in an unintended configuration. Samsung's control system displays this error specifically to prevent operation under these conditions. You should not attempt to bypass the error or continue using the range until the wiring at the terminal block has been inspected and corrected. If you are not comfortable working with 240-volt wiring, contact a qualified electrician or appliance technician.
Will resetting the Samsung range clear the bAd LinE error?
A simple reset will not permanently clear the bAd LinE error because the control board checks the power line connections each time the unit is powered on. The error will return immediately if the wiring at the terminal block is still incorrect. The only way to resolve it is to correct the L1, L2, and N connections at the terminal block before restoring power.
How much does it cost to fix a bAd LinE error on a Samsung range?
If the problem is simply a wiring mistake at the terminal block, there is no parts cost since no components need to be replaced. If you hire a technician to inspect and correct the wiring, you can expect to pay somewhere in the range of $75 to $150 for a service call, depending on your location. If the power cord itself is damaged or the wrong type and needs replacement, power cords for ranges typically cost between $15 and $40 for the part alone.

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