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Error code reference

Bosch Range Error Code F151

EEPROM failure or communication circuit failure

Bosch codesBosch range codes

EEPROM failure or communication circuit failure — communication cable between display control and power board loose or wire failure.

First step from the service manual

Check connection of comm. cable to both boards. Verify continuity between each of the 8 wires from connector to connector (disconnected).

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

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What F151 means on a Bosch range

The F151 error code on a Bosch range indicates a failure in the EEPROM or in the communication circuit between the display control board and the power board. The EEPROM (Electrically Erasable Programmable Read-Only Memory) stores critical operational data for the range, including calibration settings and user preferences. When this memory cannot be read or written correctly, or when the communication link between the two main boards is disrupted, the control system flags F151 to alert that normal operation cannot be guaranteed.

The communication between the display control board and the power board travels through an 8-wire connector cable. This cable carries data signals that allow the two boards to coordinate functions such as burner ignition, oven temperature regulation, and user input processing. A loose connector at either end, a broken wire within the harness, or corrosion on the connector pins can all interrupt this communication pathway and trigger the error.

Diagnosing F151 begins with a physical inspection of the communication cable connections at both the display control board and the power board. After disconnecting the cable, each of the 8 individual wires should be tested for continuity from one connector end to the other. Any wire showing an open circuit or high resistance indicates a break or fault in the harness. If all wires pass continuity testing and the connections seat firmly, the fault may lie within the EEPROM itself, pointing toward a board-level failure requiring component replacement.

Source: manufacturer service documentation.

Common causes of F151

  1. 01

    Loose communication cable connector

    Wiring / connection

    The 8-wire cable connecting the display control board to the power board may have worked loose at one or both ends. Check that each connector is fully seated and latched securely.

  2. 02

    Broken or damaged wire in the communication harness

    Part replacement

    One or more of the 8 wires in the harness may have a break or damaged insulation causing an open circuit. Test each wire individually for continuity with connectors disconnected to identify the faulty conductor.

  3. 03

    Corroded or burnt connector pins

    Part replacement

    Moisture or heat exposure can corrode or damage the pins inside the communication cable connectors, increasing resistance and interrupting the signal. Inspect the pins visually and clean or replace the connector as needed.

  4. 04

    Failed display control board

    Part replacement

    If the communication cable and all wiring check out correctly, the EEPROM chip or surrounding circuitry on the display control board may have failed internally, requiring board replacement.

  5. 05

    Failed power board

    Part replacement

    A fault in the power board's communication interface can also produce the F151 code even when the wiring harness is intact. This is typically diagnosed after ruling out all wiring and connector issues.

See the test procedure for each cause

Frequently asked questions about F151

What does F151 mean on a Bosch range?
F151 indicates an EEPROM failure or a communication circuit failure between the display control board and the power board. The two main control boards in the range communicate through an 8-wire cable, and if that connection is broken or corrupted, the range will display this code. The fault can stem from a loose connector, a broken wire, or a failure within one of the boards themselves.
Can I fix F151 myself without calling a technician?
Some cases of F151 can be resolved without professional help if the cause is simply a loose connector. Disconnecting the range from power, locating the 8-wire communication cable between the two boards, and reseating both connectors firmly may clear the code. If continuity testing reveals a broken wire or a board has failed, repair becomes more complex and may require a professional.
Will resetting the range clear the F151 code?
A reset by cutting power to the range for several minutes may temporarily clear the code, but it will return if the underlying fault is not corrected. If a wire is broken or a connector is loose, the communication failure will persist and the error will reappear during operation. A reset alone should not be considered a fix for F151.
Is it safe to use my Bosch range while F151 is displayed?
It is not recommended to continue using the range while F151 is active. The error indicates that the two main control boards cannot communicate reliably, which means the range may not be able to regulate burner or oven functions correctly. Operating the appliance in this state could pose a safety risk.
How much does it cost to repair a Bosch range with an F151 error?
Repair costs vary depending on the cause. If the fix involves reseating a connector or repairing a single wire, costs may be minimal, primarily covering a service call in the range of $75 to $150. If a display control board or power board requires replacement, parts and labor combined can range from $200 to $500 or more depending on the specific model and local labor rates.

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