Refrigerator Defrost Timer

The W10822278 Defrost Timer automates the defrost cycle in frost-free refrigerators. It periodically switches the system from cooling to defrost mode, allowing ice buildup on the evaporator to melt and preventing frost accumulation from affecting performance.

Key Features:

• Operates at 120 VAC, 50/60 Hz in typical refrigerator control systems

• Defrost cycle timing: ~21 minutes of defrost every 8 hours (typical factory program)

• Includes mounting hardware and a “flying lead” (wire harness) connection

• Can advance manually (by turning dial) for diagnostics or servicing

• Supports both continuous and cumulative defrost systems depending on refrigerator model

• Fits multiple Whirlpool, Kenmore, Maytag, KitchenAid, Amana, and related refrigerator models that specify W10822278 (or cross-reference part numbers)