Bosch Refrigerator Error Code E15 — Ambient Temperature Sensor Defective
What this means
Error E15 indicates the ambient temperature sensor has malfunctioned. This sensor measures the room temperature and helps the refrigerator adjust its cooling based on the environment. A faulty sensor can cause the refrigerator to cool incorrectly — running too much in cold rooms or too little in warm rooms.
Step-by-step fix
4 stepsPower cycle
Unplug for 3–5 minutes and check if the error clears.
Locate the sensor
The ambient sensor is typically located on or near the display control module. Consult your model's manual for the exact location.
Test the sensor
Disconnect the sensor and test resistance with a multimeter. Compare to the value specified in your service manual for the current room temperature.
Replace the display control module
On many Bosch models, the ambient sensor is integrated into the display control module, so the entire module may need replacement.
When to call a professional
If the sensor is built into the display module, professional replacement is recommended.
Information compiled from manufacturer service manuals, official troubleshooting documentation, and appliance repair industry resources. This guide is for informational purposes only — always consult a qualified technician for complex repairs.
Learn more about our sourcesParts you may need
Display Control Module (with sensor)
Part #00658220 · $100–$250
If sensor is integrated and defective
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