11021378 Bosch Defrost Heater

The Defrost Heater is an essential OEM component for Bosch refrigerators, also compatible with Thermador, Gaggenau, and some Kenmore models. Located at the back of the freezer compartment, it efficiently eliminates frost and ice during automatic defrost cycles by using controlled currents to temporarily increase temperatures and remove moisture.

Common causes of defrost heater failure include wear and tear from repeated heating and cooling cycles. Mineral or ice buildup can also obstruct filaments or damage sensitive parts.

Signs of a faulty defrost heater include:

- Persistent frost buildup despite the defrost mode being active
- Increased energy bills due to extended run-times for defrosting
- Warm spots behind removable freezer panels
- Frost and condensation dripping onto stored items

Replacing a defective defrost heater helps maintain consistent temperatures and ensures frost-free operation, thereby enhancing cooling efficiency. Using this genuine Bosch part can restore the performance and reliability of your refrigerator.