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Error code reference

Samsung Hood Error Code E-42

Easy/PH sensor short error.

Samsung codesSamsung hood codes

Easy/PH sensor short error.

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What E-42 means on a Samsung hood

The E-42 error code on a Samsung hood indicates a short circuit condition in the Easy/PH sensor circuit. This sensor is responsible for monitoring air quality or environmental conditions within the hood system, and a short in this circuit means the control board is detecting an abnormally low resistance path, effectively a direct or near-direct connection between conductors that should have measurable resistance between them. When a short is detected, the control board flags the fault and displays E-42 to alert the user and halt normal operation of the affected function.

The most common sources of this fault include damaged sensor wiring, a failed sensor component itself, or moisture and grease intrusion into the sensor connector or harness. Hoods operate in environments with high humidity, heat, and grease-laden air, all of which accelerate insulation breakdown on wiring and can cause conductive bridges inside connectors. A shorted sensor will typically present near-zero resistance across its terminals rather than the expected resistance range for normal operation.

Diagnosing E-42 generally involves inspecting the sensor wiring harness for visible damage, burns, or pinched sections, then checking the sensor connector for grease contamination or corrosion. If the wiring appears intact, the sensor itself should be tested for a short condition using a multimeter. If the sensor reads shorted internally, replacement is required. In some cases, the control board may also be damaged from the short event and may need evaluation after the sensor circuit is restored to normal condition.

Source: manufacturer service documentation.

Common causes of E-42

  1. 01

    Grease or moisture contamination in sensor connector

    Wiring / connection

    Hood environments expose connectors to heavy grease and steam, which can create conductive bridges inside the sensor connector and cause a short circuit. Inspect the connector for oily residue, moisture, or corrosion and clean or replace as needed.

  2. 02

    Failed or internally shorted sensor

    Part replacement

    The Easy/PH sensor itself can fail internally and present a short across its terminals. Testing the sensor with a multimeter will show near-zero resistance when it has shorted, indicating the sensor must be replaced.

  3. 03

    Damaged sensor wiring harness

    Part replacement

    Heat, sharp edges inside the hood cavity, or rodent activity can cut or pinch the sensor wiring, causing conductors to contact each other and create a short. Visually trace the harness for burns, abrasions, or pinch points.

  4. 04

    Corroded or bent connector pins

    Part replacement

    Corrosion or physically bent pins in the sensor connector can cause unintended contact between circuits and trigger a short fault. Inspect the connector pins closely and replace the connector or harness if pins are deformed or heavily corroded.

  5. 05

    Damaged control board

    Part replacement

    If the short circuit existed for an extended period before the error appeared, the control board may have sustained damage on the sensor input circuit. This is less common but should be evaluated after the sensor wiring and sensor component have been confirmed good.

See the test procedure for each cause

Frequently asked questions about E-42

What does E-42 mean on a Samsung hood?
E-42 on a Samsung hood indicates a short circuit error in the Easy/PH sensor circuit. The control board has detected an abnormally low resistance condition in the sensor wiring or the sensor itself. This fault causes the hood to interrupt normal operation until the short is identified and corrected.
Can I fix the E-42 error myself?
Some causes of E-42, such as a grease-contaminated connector, can be cleaned and resolved by a mechanically inclined homeowner. However, testing sensor resistance with a multimeter and tracing wiring faults inside the hood cabinet requires basic electrical knowledge and comfort working with appliance wiring. If you are not confident working with electrical components, a qualified appliance technician should handle the diagnosis and repair.
Is it safe to use my Samsung hood while E-42 is displayed?
A short circuit in any sensor circuit is an electrical fault, and continuing to run the appliance is not recommended until the cause is identified. Using the hood with an active short could risk further damage to the control board or wiring. It is best to stop using the appliance and have the fault diagnosed before resuming normal operation.
Will resetting the hood clear the E-42 error?
Power cycling the hood may temporarily clear the error display, but if the short circuit condition in the sensor circuit still exists, the E-42 code will return. A reset does not repair damaged wiring, a failed sensor, or a contaminated connector. The underlying electrical fault must be corrected for the error to clear permanently.
How much does it cost to repair an E-42 error on a Samsung hood?
Repair costs depend on the root cause. Cleaning a contaminated connector is essentially free if done yourself, while a replacement sensor or wiring harness typically costs between $20 and $80 for parts. If a control board replacement is needed, parts costs can range from $80 to $200 or more. Adding professional labor generally brings total repair costs to between $100 and $300 depending on the parts required and local service rates.

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