Bosch Refrigerator B21CT80SNB Parts

This defrost heater melts frost and ice buildup on the evaporator to help restore normal airflow and consistent cooling performance. Replaces the evaporator heating element used in frost-control cycles. What it does:

• Warms the evaporator coil during defrost cycles to remove accumulated ice.
• Helps restore proper airflow when frost or ice is blocking the evaporator fins.
• Commonly used when you see heavy frost buildup, ice on the evaporator, or reduced cooling performance.
• Works with the refrigerator's defrost control/thermostat to prevent over-freezing.

• One defrost heater assembly (1 pc)

• Disconnect power to the appliance before starting any repair.
• Access typically requires removing the evaporator cover; handle panels and edges carefully.
• Replace only with the exact part number; avoid routing or pinching wires during reassembly.

Fix unresponsive buttons or controls that don't activate. This push-button switch restores electrical flow for specific functions. Simple swap repair.

Replacement mounting screw for bottom-mount refrigerators. Secures internal components and panels. Order a new screw if original is stripped, lost, or damaged.

Refrigerator not cooling or freezer too warm? This evaporator coil circulates refrigerant to absorb heat and restore proper cooling in your fridge.

Replace a blank, cracked, or unresponsive control panel display. Restores cycle status, time remaining, and error code visibility on your refrigerator.