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Error code reference

Samsung Hood Error Code E-23

Temperature sensor T1 max time error (preheating not completed).

Samsung codesSamsung hood codes

Temperature sensor T1 max time error (preheating not completed).

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  • Step-by-step tests with expected resistance, voltage, and continuity values
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What E-23 means on a Samsung hood

The E-23 error code on a Samsung hood indicates a temperature sensor T1 maximum time error, specifically that the preheating cycle failed to complete within the expected time window. The T1 sensor monitors the temperature of a heating element or thermal zone during startup. When the control board initiates preheating, it expects the T1 sensor to reach a target temperature threshold within a defined period. If that threshold is not reached before the timer expires, the board flags E-23 and halts the operation to prevent damage or unsafe conditions.

This error typically points to a problem in the thermal sensing or heating circuit. The T1 temperature sensor itself may be faulty, reading lower temperatures than actual, or producing an open or short circuit condition. A failed or degraded heating element that cannot generate sufficient heat during the preheating phase is another common cause. Wiring harness issues between the sensor and the control board, such as loose connectors or damaged conductors, can also prevent accurate temperature readings from reaching the board.

The control board interprets the lack of temperature rise as a preheating failure and triggers the error as a protective response. Resolving E-23 requires identifying whether the fault lies with the sensor, the heater, the associated wiring, or the control board itself. Each component in the thermal circuit should be inspected and tested individually to isolate the failure before parts are replaced.

Source: manufacturer service documentation.

Common causes of E-23

  1. 01

    Faulty T1 temperature sensor

    Part replacement

    The T1 sensor may have drifted out of calibration, developed an open circuit, or failed entirely, causing it to report temperatures below the actual or expected value. Testing the sensor for proper resistance output is the first step.

  2. 02

    Failed or degraded heating element

    Part replacement

    If the heating element responsible for the preheating cycle is burned out or weakened, it cannot bring the thermal zone up to the required temperature within the allowed time. Visually inspect the element and test it for continuity.

  3. 03

    Loose or damaged wiring connections

    Wiring / connection

    Corroded connectors, pinched wires, or loose terminals between the T1 sensor and the control board can interrupt the signal, causing the board to misread or lose the temperature data entirely. Inspect the full wiring harness for visible damage.

  4. 04

    Control board malfunction

    Part replacement

    If the control board cannot correctly process the signal from the T1 sensor or cannot properly trigger the preheating circuit, it may incorrectly log an E-23 error even when hardware components are functioning. This is typically diagnosed after all other components have been ruled out.

  5. 05

    Blocked airflow or environmental conditions

    Wiring / connection

    In some hood designs, restricted airflow around the heating zone can prevent adequate heat buildup during preheating. Check that the unit is properly installed and that no debris or grease buildup is obstructing heat circulation.

See the test procedure for each cause

Frequently asked questions about E-23

What does E-23 mean on a Samsung hood?
E-23 on a Samsung hood indicates a temperature sensor T1 maximum time error, meaning the preheating cycle did not complete within the expected time limit. The control board monitors the T1 sensor during startup and triggers this code when the required temperature is not reached in time. The appliance stops operation as a protective measure until the underlying issue is resolved.
Can I fix the E-23 error on my Samsung hood myself?
Some causes of E-23, such as loose wiring connections or debris blocking airflow, can be addressed without specialized tools. However, testing and replacing the T1 temperature sensor, heating element, or control board typically requires disassembly of the unit and basic electrical testing skills. If you are not comfortable working with appliance wiring, it is safer to contact a qualified repair technician.
Will resetting my Samsung hood clear the E-23 error?
A power reset by unplugging the unit or switching off the circuit breaker for several minutes may temporarily clear the E-23 error code. However, if the underlying hardware fault such as a failed sensor or heating element is still present, the error will return once the hood attempts to preheat again. A reset is useful for confirming whether the fault is intermittent, but it is not a permanent fix.
Is it safe to use my Samsung hood while the E-23 error is showing?
It is not recommended to continue using the hood while E-23 is active. The error indicates that the preheating cycle failed, which means the thermal system is not operating as intended. Running the appliance in this state could mask a deeper electrical or heating component failure. Discontinue use and diagnose the fault before operating the hood again.
How much does it cost to repair a Samsung hood E-23 error?
Repair costs for E-23 vary depending on which component has failed. A replacement temperature sensor typically costs in the range of $20 to $60 for the part alone, while a heating element or control board can range from $50 to $200 or more. Adding labor costs from a professional technician, total repair costs commonly fall between $100 and $350 depending on the specific fault and your location.

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