Bosch Side-by-side refrigerator Error Codes: Full List & Meanings

Every Bosch side-by-side refrigerator error code in the Bosch side-by-side refrigerator error-code chart, as published by Sears PartsDirect, with its meaning. Codes vary by model, so confirm in your owner's manual. Support: Bosch Customer Support: 1-800-944-2904.

Codes by system

Dispenser

All Bosch side-by-side refrigerator error codes

Codes marked "Reset only" or "Service" have no separate page because the manufacturer publishes no owner fix beyond a reset or a service call.

Code	Meaning	System	Owner action
E01	Refrigerator compartment temperature sensor is defective.	Heating	Service
E02	Freezer compartment temperature sensor is defective.	Heating	Service
E03	Temperature-controlled drawer temperature sensor is defective. The temperature sensor is on the right side of the refrigerator compartment liner.	Heating	Reset only
E15	Ambient temperature sensor is defective. The ambient temperature sensor is an internal component of the display control module.	Heating	Reset only
E10	Main control board module is defective.	Control / electronics	Reset only
E11	Display control module is defective.	Control / electronics	Reset only
E20	Communication error between the main control board module and the display control module.	Control / electronics	Service
E21	Communication error between display control module and the ice and water dispenser control module.	Dispenser	Owner checks

Symptoms

Sources

Sears PartsDirect: Bosch side-by-side refrigerator error-code chart (third-party copy of manufacturer service data)

Last reviewed: October 20, 2026. ErrorCodePro is not affiliated with Bosch.