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Error code reference

Samsung Range Error Code LE

Low voltage error

Samsung codesSamsung range codes

Low voltage error — occurs when DC 12V drops under 9V, may be caused by defects of PCB or wiring.

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What LE means on a Samsung range

The LE error code on a Samsung range indicates a low voltage condition on the internal DC 12V power rail. Specifically, the control system detects that the 12V DC supply has dropped below 9V, which is insufficient for reliable operation of the control electronics. This threshold exists to protect the board from operating in an unstable state that could cause erratic behavior or component damage. The 12V rail is typically generated by the main power control board (PCB) from the incoming AC line voltage and is distributed to various control circuits throughout the range.

The two primary sources of this fault are a defective PCB and wiring issues within the low-voltage circuit. A failing PCB may have a damaged voltage regulator, failed capacitors, or other component-level failures that prevent it from maintaining a stable 12V output. Wiring problems such as loose connectors, corroded terminals, or damaged harness sections can introduce excessive resistance into the circuit, causing a voltage drop that brings the rail below the 9V minimum threshold.

Diagnosing this error requires a multimeter to measure the actual DC voltage at the relevant connector points on the PCB. If the voltage is confirmed to be below 9V, the technician should inspect all wiring harnesses connected to the main board for signs of damage, corrosion, or loose pins before condemning the board itself. If the wiring checks out and voltage remains low under load, PCB replacement is the likely resolution.

Source: manufacturer service documentation.

Common causes of LE

  1. 01

    Defective main PCB

    Part replacement

    The main power control board may have a failed voltage regulator or damaged capacitors that prevent it from maintaining the required 12V DC output. If voltage measured at the board output is confirmed below 9V and wiring is intact, the PCB is the likely cause.

  2. 02

    Loose or corroded wiring connectors

    Wiring / connection

    Loose, corroded, or poorly seated connectors in the low-voltage wiring harness can introduce resistance that drops the 12V rail below the 9V threshold. Inspect all connectors leading to and from the main PCB for corrosion, bent pins, or incomplete seating.

  3. 03

    Damaged wiring harness

    Part replacement

    Physical damage to the wiring harness such as pinched, burned, or frayed wires can cause a partial short or open circuit that pulls down the voltage rail. A visual inspection of the full harness routing inside the range cabinet is needed to identify this condition.

  4. 04

    Intermittent voltage drop under load

    Part replacement

    The 12V supply may read correctly at idle but sag below 9V when the control board is under normal operating load. This points to a weakened power supply section on the PCB rather than a wiring fault.

See the test procedure for each cause

Frequently asked questions about LE

What does LE mean on a Samsung range?
LE stands for Low voltage Error on a Samsung range. It means the internal DC 12V power supply has dropped below 9V, which is too low for the control electronics to operate reliably. The most common causes are a defective main PCB or a problem with the wiring harness connected to it.
Can I fix the LE error on my Samsung range myself?
A knowledgeable DIYer can inspect the wiring harnesses and connectors for corrosion, loose pins, or visible damage, which may resolve the error without parts. However, if the fault lies within the main PCB itself, board replacement is required and working near high-voltage components inside a range carries serious safety risks. Professional service is recommended if wiring inspection does not identify an obvious fault.
Is it safe to use my Samsung range while the LE error is displayed?
No, you should not continue using the range while the LE error is active. A voltage supply problem can cause unpredictable control board behavior, which may affect heating elements, temperature regulation, or other safety systems. The range should remain off until the fault is diagnosed and repaired.
Will resetting my Samsung range clear the LE error?
A power reset, such as unplugging the unit for a few minutes, may temporarily clear the LE error if the voltage drop was caused by a momentary anomaly. However, if the underlying cause is a failing PCB or a wiring defect, the error will return during normal operation. A reset is not a fix and should only be used as a first step in diagnosing the issue.
How much does it cost to repair an LE error on a Samsung range?
Repair costs vary depending on the cause. If only a wiring connector needs to be cleaned or reseated, costs may be limited to a service call fee, typically in the range of $75 to $150. If the main PCB requires replacement, parts and labor combined can range from $200 to $450 or more depending on the specific model and local labor rates.

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