mypros+
Error code reference

Samsung Range Error Code SE3

Oven sensor shorted problem.

Samsung codesSamsung range codes

Oven sensor shorted problem.

First step from the service manual

Press the CLEAR/OFF pad and restart the oven. If the problem persists, disconnect all power to the range for at least 30 seconds and then reconnect the power.

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

MyPros+ Max

Get the full diagnostic procedure for SE3.

  • Step-by-step tests with expected resistance, voltage, and continuity values
  • Wiring diagram references and connector pinouts from the OEM service manual
  • Verified part numbers when replacement is required
Get the full procedure

$29/month · Cancel anytime · Or $9.95 3-day pass

What SE3 means on a Samsung range

The SE3 error code on a Samsung range indicates a shorted oven sensor condition. The oven temperature sensor, also called an RTD (resistance temperature detector) probe, is responsible for monitoring the oven cavity temperature and sending resistance-based readings to the control board. Under normal operating conditions, sensor resistance changes predictably with temperature. A short circuit in the sensor or its wiring causes the resistance to drop abnormally low, which the control board interprets as an out-of-range reading and triggers the SE3 fault.

The most common sources of a shorted sensor condition include a physically damaged sensor probe, degraded wiring insulation that allows two conductors to make contact, or a connector at the control board that has moisture or corrosion bridging its terminals. The sensor probe itself sits inside the oven cavity and is exposed to high heat cycles repeatedly over time, which can cause internal element failure. Wiring harness damage from heat, rodents, or pinching during previous service is another frequent contributor.

The initial diagnostic step is to press CLEAR/OFF and attempt a restart. If the fault returns, a full power disconnect of at least 30 seconds allows the control board to reset and rules out a temporary signal anomaly. If SE3 reappears after power is restored, the sensor circuit requires hands-on diagnosis, including checking the sensor probe resistance at room temperature and inspecting the wiring harness and connectors for visible damage or continuity faults.

Source: manufacturer service documentation.

Common causes of SE3

  1. 01

    Failed oven temperature sensor probe

    Part replacement

    The sensor probe inside the oven cavity can develop an internal short after repeated heat cycling, causing its resistance to read incorrectly. This is the most frequent cause of SE3 and typically requires replacing the sensor probe.

  2. 02

    Damaged or shorted wiring harness

    Part replacement

    The wires connecting the sensor to the control board can have insulation that degrades from heat exposure or physical damage, allowing conductors to contact each other and create a short. Inspect the harness along its full length for melted, pinched, or frayed insulation.

  3. 03

    Corroded or moisture-affected connector

    Wiring / connection

    If moisture or corrosion bridges the terminals at the sensor connector or control board connector, the board can read a false short. Disconnecting and cleaning the connector pins may resolve the fault.

  4. 04

    Transient electrical fault or power surge

    Wiring / connection

    A brief voltage irregularity can sometimes cause the control board to log a false SE3 code. Performing the recommended CLEAR/OFF reset and 30-second full power disconnect is the first step to rule out this cause.

  5. 05

    Faulty control board

    Part replacement

    If the sensor and all wiring check out correctly, the control board itself may be misreading the sensor signal due to a failed input circuit. This is the least common cause and should be considered only after the sensor and harness have been confirmed good.

See the test procedure for each cause

Frequently asked questions about SE3

What does SE3 mean on a Samsung range?
SE3 on a Samsung range indicates a shorted oven sensor problem. The oven temperature sensor or its wiring has developed a short circuit, causing the resistance signal sent to the control board to fall outside the acceptable range. The oven shuts down to prevent unsafe operation until the fault is resolved.
Will resetting the range clear the SE3 error?
A reset can clear SE3 if the fault was caused by a temporary electrical glitch. Press the CLEAR/OFF pad first, then restart the oven. If the code returns, disconnect all power to the range for at least 30 seconds before reconnecting. If SE3 comes back after a full power reset, the sensor or wiring requires physical inspection and likely replacement.
Is it safe to use my Samsung range while SE3 is displayed?
It is not recommended to use the oven while SE3 is active. A shorted temperature sensor means the control board cannot accurately monitor oven temperature, which could result in overheating or unpredictable oven behavior. The oven should remain out of service until the sensor circuit is diagnosed and repaired. The stovetop surface burners may still function normally depending on the range model.
How do I fix the SE3 error on my Samsung range?
Start by pressing CLEAR/OFF and restarting the oven, then perform a 30-second full power disconnect if the code persists. If the error returns, the next step is to inspect the oven temperature sensor probe for visible damage and test its resistance with a multimeter. Also check the wiring harness between the sensor and the control board for damaged insulation or corroded connectors. If the sensor resistance is out of specification, replacing the probe is the most common repair.
How much does it cost to repair a Samsung range SE3 error?
Repair costs vary depending on the root cause. A replacement oven temperature sensor probe typically costs between $15 and $60 for the part alone. If professional labor is required, total repair costs including parts and service can range from $100 to $300 or more depending on your location and the technician. Control board replacement, if needed, is the most expensive scenario and can push costs higher.

Related Samsung range codes

All Samsung range codes
View all 72 Samsung range codes

78,000+ service manuals · 160,000+ error codes · 55+ brands

Get Started

$29/month · Cancel anytime · Or $9.95 3-day pass