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Error code reference

Bosch Refrigerator Error Code E07

FC (Freezer Compartment) evaporator temperature sensor reading out of range (≥60°C or ≤-55°C), indicating…

Bosch codesBosch refrigerator codes

FC (Freezer Compartment) evaporator temperature sensor reading out of range (≥60°C or ≤-55°C), indicating sensor break, short-circuit, or no contact.

First step from the service manual

Check freezer evaporator sensor for break/short-circuit/no contact.

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

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What E07 means on a Bosch refrigerator

The E07 error code on a Bosch refrigerator indicates that the freezer compartment (FC) evaporator temperature sensor is returning a reading outside its valid operating range. Specifically, the control board is receiving a signal that corresponds to a temperature at or above 60°C or at or below -55°C. Because these values fall well outside any realistic freezer operating condition, the board interprets the reading as a fault rather than an actual temperature, and triggers the E07 code to alert the technician.

The FC evaporator sensor is a negative temperature coefficient (NTC) thermistor positioned near the evaporator coil in the freezer section. Its resistance changes predictably with temperature, and the control board calculates the evaporator temperature based on that resistance value. When the sensor circuit is open (a break in the wiring or sensor element), resistance climbs to an extreme level, producing a falsely high temperature reading. Conversely, a short-circuit causes resistance to drop toward zero, producing a falsely low reading. Either condition pushes the reported value outside the valid range and triggers E07.

The most common causes are physical damage to the sensor wiring harness, corrosion at the connector contacts, or outright failure of the sensor element itself. Connectors in the freezer compartment are exposed to moisture and repeated freeze-thaw cycles, which can degrade terminals over time and cause intermittent or complete loss of contact. A thorough inspection of the sensor, its harness, and all connector pins is the recommended starting point before replacing any components.

Source: manufacturer service documentation.

Common causes of E07

  1. 01

    Damaged or broken sensor wiring

    Part replacement

    The wiring harness connecting the evaporator sensor to the control board can crack, fray, or break, especially at bend points or where it passes through cabinet panels. An open circuit in the wire produces an out-of-range high reading on the control board.

  2. 02

    Corroded or loose connector contacts

    Wiring / connection

    Moisture inside the freezer compartment can corrode the connector pins between the sensor harness and the main wiring loom, causing high resistance or no contact. Inspect the connector for green or white oxidation and check that all pins are fully seated.

  3. 03

    Failed evaporator temperature sensor

    Part replacement

    The NTC thermistor element inside the sensor can fail internally, resulting in either an open circuit or a short-circuit condition. If wiring and connectors check out, measure the sensor resistance and compare it to the expected value for the ambient temperature to confirm sensor failure.

  4. 04

    Short-circuit in the sensor circuit

    Part replacement

    A pinched or chafed section of harness where insulation has worn away can cause the signal wire to contact ground, creating a short-circuit. This drives the resistance reading toward zero and produces a falsely extreme low temperature reading that triggers E07.

  5. 05

    Control board input circuit fault

    Part replacement

    In less common cases, the sensor and its wiring test within normal parameters but the control board sensor input channel has failed. This is typically diagnosed only after the sensor and harness have been confirmed good.

See the test procedure for each cause

Frequently asked questions about E07

What does E07 mean on a Bosch refrigerator?
E07 means the freezer compartment evaporator temperature sensor is reporting a value outside the valid range, specifically at or above 60°C or at or below -55°C. The control board flags this because those readings are physically impossible under normal operating conditions. The fault points to a broken sensor wire, a short-circuit in the sensor circuit, or loss of contact at a connector. The sensor itself may also have failed internally.
Can I fix the E07 error code myself?
Many E07 repairs are accessible to a knowledgeable DIYer. Start by visually inspecting the freezer evaporator sensor wiring and connector for obvious damage, corrosion, or loose pins. If the wiring looks intact, use a multimeter to check continuity through the harness and measure the sensor resistance to determine whether the sensor element has failed. Replacing a sensor or repairing a harness connection is generally straightforward, but working near refrigerant lines requires care to avoid damage.
Is it safe to keep using my refrigerator while it shows E07?
Operating the refrigerator with an active E07 fault is not recommended for extended periods. Without a functioning evaporator sensor, the control board cannot accurately regulate freezer temperatures, which may cause the freezer to run too warm or cycle incorrectly. Food safety can be compromised if the freezer temperature rises above safe levels. Address the fault as soon as possible to restore proper temperature control.
Will resetting the refrigerator clear the E07 code?
A reset may temporarily clear the displayed code, but the error will return if the underlying sensor fault is still present. Resetting without repairing the sensor, wiring, or connector does not fix the problem and can delay proper diagnosis. Perform the reset only after completing repairs to confirm that the fault has been resolved and does not reappear.
How much does it cost to repair a Bosch refrigerator E07 error?
Repair costs depend on which component has failed. A replacement evaporator temperature sensor typically costs in the range of $15 to $50 for the part alone. If a technician is needed for diagnosis and installation, total service costs generally fall in the range of $100 to $250, depending on local labor rates and the complexity of accessing the sensor. A control board replacement, if required, would be a higher expense.

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