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Error code reference

Samsung Range Error Code C-23

Temperature probe (meat probe) sensor is shorted when oven is operating.

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Temperature probe (meat probe) sensor is shorted when oven is operating.

First step from the service manual

Disconnect power, disconnect probe harness from control board, and measure probe resistance (should be 50K ohms at room temperature).

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

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What C-23 means on a Samsung range

The C-23 error code on a Samsung range indicates that the meat probe (temperature probe) sensor circuit is reading a shorted condition while the oven is in operation. A short circuit in this context means the resistance across the probe's leads has dropped far below the expected value, causing the control board to detect an out-of-range signal. The probe is a thermistor-based sensor designed to monitor the internal temperature of food placed in the oven, and its resistance changes predictably with temperature. At room temperature, the correct resistance across the probe terminals should measure approximately 50K ohms. When the control board receives a signal well below this threshold, it interprets the probe as shorted and triggers the C-23 fault.

The most common sources of this fault are physical damage to the probe itself, a compromised probe cable, or a faulty connection at the jack where the probe plugs into the oven cavity wall. The probe cable is exposed to heat and repeated handling, which can cause insulation to crack or internal wires to contact each other, creating a short. Moisture or food debris inside the probe jack can also bridge the contacts and pull the resistance reading down. In less common cases, the wiring harness running from the probe jack to the control board may have an internal short due to pinching or heat damage.

Diagnosis begins with disconnecting power to the range, then unplugging the probe from the oven cavity jack and disconnecting the harness from the control board. Measuring resistance directly across the probe terminals with a multimeter will confirm whether the probe itself is shorted. If resistance reads near zero or well below 50K ohms at room temperature, the probe requires replacement. If the probe measures correctly, the fault lies in the jack, harness, or control board.

Source: manufacturer service documentation.

Common causes of C-23

  1. 01

    Faulty or damaged meat probe

    Part replacement

    The probe itself may have a shorted internal thermistor or damaged wiring within its cable. This is the most likely cause and can be confirmed by measuring resistance across the probe terminals, which should read approximately 50K ohms at room temperature. A reading near zero indicates the probe is shorted.

  2. 02

    Damaged probe cable insulation

    Part replacement

    Repeated exposure to oven heat and physical handling can crack the cable insulation, allowing internal wires to contact each other and create a short. Visually inspect the full length of the cable for cuts, kinks, or melted spots.

  3. 03

    Contaminated or corroded probe jack

    Wiring / connection

    Food grease, moisture, or residue inside the probe receptacle on the oven cavity wall can bridge the contacts and produce a false short reading. Cleaning the jack carefully after disconnecting power may resolve the fault without replacing parts.

  4. 04

    Shorted probe wiring harness

    Part replacement

    The harness running from the probe jack to the control board can develop an internal short if it has been pinched by the oven cavity or damaged by heat. If the probe itself tests at the correct resistance, inspect this harness for damage.

  5. 05

    Faulty control board

    Part replacement

    If the probe and harness both test correctly, the control board may be misreading the probe circuit due to a failed input component. This is the least likely cause and should only be considered after all other components have been ruled out.

See the test procedure for each cause

Frequently asked questions about C-23

What does C-23 mean on a Samsung range?
The C-23 code on a Samsung range means the control board has detected a short circuit in the meat probe sensor while the oven is running. The probe is a thermistor that should measure approximately 50K ohms of resistance at room temperature, and a shorted probe reads significantly lower than that. The oven triggers this code to alert you to a faulty probe circuit so it can stop the cooking cycle before inaccurate temperature readings affect your results.
Can I fix the C-23 error myself?
Yes, this repair is manageable for a knowledgeable DIYer with a multimeter. Start by disconnecting power, unplugging the meat probe from the oven cavity, and measuring resistance across the probe terminals. If the reading is well below 50K ohms, replacing the meat probe is the fix. If the probe tests correctly, further inspection of the probe jack and wiring harness is needed before considering a control board replacement.
Is it safe to use my Samsung range while the C-23 error is showing?
You should not use the oven in probe mode while C-23 is active, since the control board cannot accurately monitor food temperature with a shorted probe. If the oven allows standard bake or broil functions without the probe connected, those modes are generally unaffected by this fault. Disconnect and remove the probe entirely before running the oven in any mode until the issue is resolved.
How much does it cost to fix a Samsung range C-23 error?
If the meat probe is the cause, replacement probes typically cost in the range of $20 to $60 for parts, making this one of the more affordable range repairs. If the wiring harness needs replacement, parts and labor together may run $80 to $200 depending on the service provider. A control board replacement, if needed, is the most expensive outcome and can range from $150 to $400 or more for parts alone.
Will resetting my Samsung range clear the C-23 error code?
Disconnecting power to the range for a few minutes may temporarily clear the C-23 code, but the error will return as soon as the oven detects the shorted probe circuit again during operation. A permanent fix requires resolving the underlying short, either by replacing the probe, cleaning the probe jack, or repairing the harness. Resetting without addressing the cause is not a long-term solution.

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