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Error code reference

Samsung Range Error Code C-41

PCB temp sensor is open when the oven is operating.

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PCB temp sensor is open when the oven is operating.

First step from the service manual

Disconnect power. Open back cover. Replace the main PCB.

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

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What C-41 means on a Samsung range

The C-41 error code on a Samsung range indicates that the PCB (printed circuit board) temperature sensor is reading as an open circuit while the oven is in operation. The PCB contains an onboard thermistor or temperature sensing element that monitors the control board's own operating temperature. When this sensor reports an open circuit condition, the control system cannot verify that the board is operating within a safe thermal range, which triggers the fault code and interrupts normal oven function.

An open circuit in the PCB temperature sensor means the electrical path through the sensing element has been broken entirely. This is different from a short circuit condition and typically results from a physically damaged sensor element, a cracked solder joint on the board, or internal component failure within the PCB assembly itself. Because the sensor is integrated into the main PCB rather than being a standalone component with field-replaceable wiring, there is no separate sensor harness to test or swap out independently.

The diagnostic procedure goes directly to main PCB replacement after disconnecting power and removing the back cover. This reflects the fact that the temperature sensing element is not serviceable as a discrete part. If the board is showing C-41, the sensing circuit on the PCB has failed internally, and the entire main control board must be replaced to restore normal operation. Heat damage from a ventilation obstruction or a manufacturing defect in the sensor element are both plausible root causes of this failure mode.

Source: manufacturer service documentation.

Common causes of C-41

  1. 01

    Internal PCB sensor failure

    Part replacement

    The temperature sensing element built into the main control board has failed internally, creating an open circuit. Since the sensor is not a separate replaceable component, the entire PCB must be replaced.

  2. 02

    Cracked or failed solder joint on PCB

    Part replacement

    Thermal cycling over time can cause solder joints connecting the onboard sensor element to crack and lose continuity, resulting in an open circuit reading. Visually inspecting the board may reveal cracked joints, but resoldering is generally not a reliable long-term fix.

  3. 03

    Heat damage to the control board

    Part replacement

    Excessive heat in the control board cavity, sometimes caused by blocked ventilation or a nearby component failure, can damage the sensor element on the PCB. Check that all ventilation openings at the rear of the range are clear before installing a replacement board.

  4. 04

    Manufacturing defect in sensor circuit

    Part replacement

    In some cases, the onboard sensing component may fail prematurely due to a latent manufacturing defect. This type of failure can appear without any obvious external cause or prior overheating event.

See the test procedure for each cause

Frequently asked questions about C-41

What does C-41 mean on a Samsung range?
C-41 means the main PCB temperature sensor is reading as an open circuit while the oven is operating. The control board has a built-in sensor that monitors its own temperature, and an open circuit condition means that sensor's electrical path is completely broken. This fault prevents normal oven operation as a safety precaution. The main PCB must be replaced to resolve it.
Can I fix the C-41 error myself?
The repair requires disconnecting power, removing the back cover of the range, and replacing the main PCB. This is a task that a confident DIYer comfortable with appliance disassembly can potentially complete, but it does involve working with the main control board. If you are not comfortable identifying and handling circuit board components, a professional repair technician is recommended.
Is it safe to use my Samsung range when C-41 is displayed?
You should not continue using the oven while this fault code is active. The C-41 code indicates the control board cannot monitor its own temperature, which removes a layer of thermal safety protection. Discontinue oven use until the main PCB has been replaced.
Will resetting the range clear the C-41 error?
A power reset may temporarily clear the displayed code, but it will not fix the underlying open circuit condition in the PCB sensor. The error will return once the oven is operated again because the sensor failure is a hardware fault, not a software or communication glitch. Replacement of the main PCB is the required repair.
How much does it cost to fix a C-41 error on a Samsung range?
The main cost is the replacement main PCB, which typically runs in the range of $150 to $350 depending on the specific model. If you hire a technician, add labor costs of roughly $100 to $200 on top of the part price. DIY replacement eliminates the labor cost but requires careful handling of the control board.

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