E07 points to the freezer evaporator temperature sensor—the little probe that tells the control board how cold the evaporator area really is. You usually won’t see E07 during everyday use; it tends to show up after running the refrigerator’s auto diagnostic routine. When it does appear, it’s the appliance’s way of saying, “I’m not trusting the reading from that sensor.”

Why that matters

The evaporator sensor helps the fridge balance compressor run time, defrost cycles, and fan operation. If the reading is off—because the sensor is failing, out of range, iced over, or its wiring isn’t making clean contact—you can end up with real-world symptoms: soft ice cream, temperature swings, longer run times, or frost that builds back quickly after a defrost.

What you might notice (even if you didn’t run a test)

Owners sometimes report an unusually warm freezer after normal door use, a unit that seems to “hunt” for temperature, or fan noise that comes and goes more than usual. In other cases, everything seems fine until the next forced diagnostic flags E07 again. That’s typical of an intermittent sensor or a borderline harness connection.

Common underlying causes

Most E07 cases trace back to one of a few things: a sensor that’s drifted out of spec, a cracked or wet sensor tip from heavy icing, a chafed or loose harness/connector, or—less commonly—a control board that can’t read the signal correctly. Ice buildup around the probe can also skew readings, even if the part itself isn’t “dead.”

What to do next

Power-cycling won’t usually clear a genuine sensor fault for long. Because the evaporator area is tucked behind panels and intertwined with the defrost system, this is a pro job. A certified Bosch technician will access the evaporator compartment, test the sensor’s resistance against temperature charts, inspect the harness and connectors, check for moisture intrusion or corrosion, and confirm the control board is interpreting the signal correctly. If the sensor is out of range, it’s replaced; if the wiring is suspect, it’s repaired and secured; if defrost or airflow conditions caused icing around the probe, those are corrected so the error doesn’t return.

A few practical don’ts

Avoid prying off panels, forcing defrosts, or trying to splice in a “similar” sensor. Those shortcuts often create new problems—damaged coils, broken clips, or mismatched parts—that cost more to fix than the original issue.

E07 after an auto diagnostic is your early warning that the freezer evaporator sensor circuit needs attention. Getting a qualified technician to test and correct it promptly protects food, restores stable temperatures, and prevents longer run times that drive up energy use.