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Error code reference

Samsung Hood Error Code E-46

Easy/PH sensor primary open error (3 minutes).

Samsung codesSamsung hood codes

Easy/PH sensor primary open error (3 minutes).

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What E-46 means on a Samsung hood

The E-46 error code on a Samsung hood indicates an Easy/PH sensor primary open circuit fault that has persisted for a minimum of 3 minutes. The PH (plasma or particulate/humidity) sensor is part of the hood's automatic ventilation control system, which monitors air quality or humidity conditions in the cooking environment and adjusts fan speed accordingly. An "open error" means the control board is detecting no signal or a broken electrical path from the primary sensor circuit, rather than a reading that is simply out of range.

This type of open circuit fault can originate at several points in the sensor circuit: the sensor element itself may have failed internally, the wiring harness connecting the sensor to the main control board may have a break or disconnected connector, or the control board's sensor input circuit may be damaged. The 3-minute duration qualifier indicates the fault must be continuously present before the code triggers, which helps filter out brief transient signal interruptions.

Because the sensor is integral to automatic fan operation, E-46 typically disables or limits the automatic ventilation mode while manual fan control may still be available. Diagnosing this fault requires inspecting the sensor connector and wiring for damage, corrosion, or loose pins, and then testing continuity through the sensor element itself. If wiring is intact, the sensor module or the main control board will likely need replacement.

Source: manufacturer service documentation.

Common causes of E-46

  1. 01

    Disconnected or loose sensor connector

    Wiring / connection

    Vibration from the blower motor or grease buildup can cause the wiring connector at the PH sensor to loosen or detach completely, breaking the circuit. Inspect the connector at both the sensor end and the control board end for secure seating.

  2. 02

    Failed PH sensor element

    Part replacement

    The sensor element itself can fail internally, resulting in an open circuit that the control board reads as no connection. If wiring and connectors check out, the sensor module likely needs replacement.

  3. 03

    Damaged wiring harness

    Part replacement

    The wiring between the PH sensor and the main control board may have chafed, broken, or been damaged by heat or grease exposure. A continuity test along the harness will reveal any breaks.

  4. 04

    Corroded connector pins

    Wiring / connection

    Grease-laden steam in a hood environment can cause corrosion or contamination on the sensor connector pins, increasing resistance to the point where the control board reads the circuit as open. Cleaning the contacts may restore the connection.

  5. 05

    Faulty main control board

    Part replacement

    If the sensor, wiring, and connectors all test correctly, the sensor input circuit on the main control board may have failed. A damaged input circuit on the board will register an open fault regardless of sensor condition.

See the test procedure for each cause

Frequently asked questions about E-46

What does E-46 mean on a Samsung hood?
E-46 indicates a primary open circuit error on the Easy/PH sensor, which has been detected continuously for at least 3 minutes. The PH sensor is part of the automatic ventilation system that monitors air conditions and adjusts fan speed. The error means the control board is receiving no signal from that sensor, pointing to a broken circuit somewhere between the sensor and the board.
Can I fix E-46 on my Samsung hood myself?
Some causes of E-46 are DIY-approachable, such as reseating a loose sensor connector or cleaning corroded pins on the wiring harness. However, replacing the PH sensor module or the main control board requires disassembly of the hood and comfort working with electrical components. If you are not confident testing continuity with a multimeter or handling appliance wiring, a qualified technician should perform the repair.
Is it safe to keep using my Samsung hood while E-46 is displayed?
The hood's automatic ventilation mode will likely not function correctly while E-46 is active, since it depends on input from the faulty sensor. You may still be able to operate the fan manually at a fixed speed. It is not a fire or immediate safety hazard, but cooking without a properly functioning hood means fumes, smoke, and grease vapor may not be adequately evacuated, so resolving the error promptly is recommended.
Will resetting my Samsung hood clear the E-46 error?
A power reset, such as unplugging the hood or switching off its circuit breaker for a few minutes, may temporarily clear the error code. However, if the underlying open circuit condition still exists, the fault will return within 3 minutes of the sensor circuit being monitored again. A reset alone is not a fix and the root cause must be identified and corrected.
How much does it cost to repair E-46 on a Samsung hood?
Repair costs vary depending on the root cause. If only a connector needs reseating or cleaning, there may be no parts cost at all, with only a service call fee if a technician is involved. Replacing the PH sensor module typically costs in the range of $30 to $100 for the part, while a main control board replacement can run $80 to $250 or more for the part, plus labor if professionally installed.

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