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Error code reference

Samsung Hood Error Code E-51

EEPROM open (sense failure) error.

Samsung codesSamsung hood codes

EEPROM open (sense failure) error.

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What E-51 means on a Samsung hood

The E-51 error code on a Samsung hood indicates an EEPROM open or sense failure. The EEPROM (Electrically Erasable Programmable Read-Only Memory) is a small non-volatile memory chip embedded on the main control board. It stores critical configuration data, calibration settings, and operational parameters that the hood's control system relies on during startup and runtime. When the control board cannot successfully read from or communicate with the EEPROM, it triggers the E-51 fault to signal that the memory interface has failed.

This type of fault typically originates at the main control board itself. The EEPROM may have developed an internal failure, or the communication pathway between the main processor and the memory chip may be broken due to a damaged trace, a loose internal solder joint, or corruption of the stored data. Power surge events or voltage irregularities during operation are known contributors to EEPROM failures, as they can corrupt memory contents or physically damage the chip's read/write circuitry.

Because the EEPROM is integrated directly onto the control board rather than being a separately serviceable component, resolving E-51 almost always requires replacing the entire main control board assembly. Before condemning the board, technicians should verify that the hood is receiving stable supply voltage and check for any loose wiring harness connections at the control board, as intermittent contact can occasionally mimic an EEPROM sense failure.

Source: manufacturer service documentation.

Common causes of E-51

  1. 01

    Failed EEPROM chip on the control board

    Part replacement

    The EEPROM chip itself may have developed an internal failure due to age, heat exposure, or component degradation. Since the chip is soldered directly to the control board, the entire board typically must be replaced.

  2. 02

    Corrupted EEPROM data from a power surge

    Part replacement

    A voltage spike or power interruption can corrupt the data stored in the EEPROM, causing the control board to report a sense failure. Check the power supply and consider whether a surge event preceded the error.

  3. 03

    Loose or damaged wiring harness connection at the control board

    Wiring / connection

    A wiring connector that has worked loose or a damaged wire leading to the control board can interrupt communication and trigger this fault. Inspect all harness connections at the board for secure seating and visible damage.

  4. 04

    Control board communication circuit failure

    Part replacement

    A broken solder joint or damaged circuit trace on the control board between the main processor and the EEPROM can interrupt the memory read/write pathway. This type of failure is internal to the board and requires board replacement.

See the test procedure for each cause

Frequently asked questions about E-51

What does E-51 mean on a Samsung hood?
E-51 on a Samsung hood indicates an EEPROM open or sense failure. The EEPROM is a memory chip on the main control board that stores the hood's operating settings and configuration data. When the control board cannot read from this chip, it triggers the E-51 fault and the hood will not operate normally. This error typically points to a control board problem.
Can I fix the E-51 error on my Samsung hood myself?
A homeowner can start by checking that the hood's power supply is stable and by inspecting visible wiring harness connections at the control board for looseness or damage. However, if those checks do not resolve the error, the fix almost always involves replacing the main control board, which requires disassembling the hood, handling electrical components, and correctly reconnecting wiring harnesses. This level of repair is best handled by a qualified appliance technician.
Will resetting my Samsung hood clear the E-51 error?
A power reset, performed by disconnecting the hood from power for several minutes and then restoring power, may temporarily clear the error if the EEPROM data was disrupted by a brief voltage issue. However, if the EEPROM chip itself has failed or the control board has sustained physical damage, the E-51 code will return after the reset. A persistent E-51 error after a reset confirms a hardware failure that requires component replacement.
Is it safe to use my Samsung hood while the E-51 error is active?
It is not recommended to continue using the hood while E-51 is active. The control board cannot read its configuration memory, which means the hood's controls and safety functions may not operate as intended. Continued use in this state could lead to unpredictable behavior from the control system. Disconnect the appliance from power until the fault is diagnosed and repaired.
How much does it cost to repair an E-51 error on a Samsung hood?
Repair costs depend on whether the fix involves a wiring correction or a full control board replacement. A wiring inspection and reconnection is a minor labor charge, while a control board replacement typically runs in the range of $150 to $400 or more depending on the specific model and labor rates in your area. Getting a diagnostic estimate from a qualified technician before authorizing repairs is advisable.

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