Samsung Range Error Code Low Voltage Error

The Low Voltage Error means the internal DC 12V power supply rail has dropped below 9V, which is the minimum threshold for reliable control board operation. The fault is triggered by the PCB monitoring circuit to prevent erratic behavior from undervoltage conditions. The cause is typically a wiring fault or a failing switch mode power supply on the main control board.

It is not recommended to continue using the range while this error is present. An undervoltage condition on the control board can cause unpredictable behavior from the control electronics, including improper operation of heating elements. The range should be powered off at the breaker until the fault is diagnosed and corrected.

If the fix is simply reseating a loose wire harness, there may be no parts cost and only a service call fee, typically in the range of $75 to $150. If the main PCB assembly requires replacement, parts alone can range from $150 to $400 depending on the specific model, with labor adding to that total. Getting a diagnosis before ordering parts is advisable to confirm which component has failed.

A knowledgeable DIYer can check whether the sub-wire harness between the main PCB and the touch PCB is fully connected and undamaged, which requires no special tools. Measuring DC voltage output from the SMPS circuit requires a multimeter and comfort working around electronics. If the PCB itself has failed, replacement involves working with line voltage components and is best handled by a qualified technician.

A power cycle by switching off the circuit breaker for one to two minutes may temporarily clear the error display, but the fault will return if the underlying cause is still present. The error is tied to an active hardware condition, specifically a voltage reading below 9V, so it will persist or reappear until the wiring or PCB issue is resolved.