The WG03F07855 is a genuine OEM refrigerator evaporator fan motor designed for GE, Hotpoint, Westinghouse, and related brand refrigerators. This critical component circulates air through the fresh food compartment and evaporator coils, removing heat and maintaining consistent cooling throughout the refrigerator. The evaporator fan motor is essential for proper refrigerator function—without a functioning fan motor, the refrigerator cannot circulate cooled air, resulting in warm fresh food compartment temperatures and potential food spoilage. The WG03F07855 is rated at 115 volts AC, 1/20 horsepower, operating at approximately 1500 RPM, providing efficient air circulation and reliable cooling performance. The motor is a shaded pole design, a robust and reliable motor type commonly used in refrigeration applications. The evaporator fan motor is constructed from premium materials including a copper-wound stator coil (provides electromagnetic force to rotate the rotor), aluminum rotor with shaded poles (creates rotating magnetic field for smooth, efficient operation), sealed ball bearings (reduce friction and extend motor life), aluminum motor housing (protects internal components and dissipates heat), rubber vibration isolators (reduce noise and vibration transmission), and a permanently lubricated design (requires no maintenance). The motor shaft has a fan blade mounting interface, typically a press-fit or clip-on connection for secure blade attachment. The WG03F07855 replaces older part numbers including WR60X31522, WR60X10141, WR60X10346, WR60X10072, WR60X10138, WR60X10046, WR60X10045, WR60X23584, WR60X27646, WG03F05834, and similar motors and features improved copper winding formulation for better electrical efficiency and longer lifespan (30% longer than previous generation), enhanced rotor design for smoother operation and reduced noise, upgraded bearing design for lower friction and extended motor life, improved vibration isolation for quieter operation, and optimized motor speed (1500 RPM) for efficient air circulation across all compatible refrigerator models. The refrigerator evaporator fan motor operates through electromagnetic induction and mechanical rotation: when the refrigerator compressor cycles on, the control board sends 115V AC power to the evaporator fan motor; the AC current flows through the stator coil, creating a rotating magnetic field; the shaded poles in the rotor interact with this magnetic field, causing the rotor to spin; the rotor rotates at approximately 1500 RPM, driving the attached fan blade; the fan blade pulls air through the evaporator coils, where the air is cooled by the refrigerant flowing through the coils; the cooled air is then distributed through ducts to the fresh food compartment and freezer compartment; the motor continues running as long as the compressor is on; when the refrigerator reaches the set temperature, the thermostat cycles the compressor off, and the fan motor also stops; this cycle repeats throughout the day to maintain consistent cooling. Common failure causes include normal wear from age and continuous operation (typical motor lifespan 8-12 years with average use), mechanical wear from bearing degradation causing increased friction and motor strain, electrical stress from voltage fluctuations or power surges, thermal stress from high ambient temperatures or blocked airflow causing motor overheating, ice accumulation on fan blade or evaporator coils restricting rotation, physical damage from improper installation or maintenance, contamination from dust or debris reducing motor efficiency, manufacturing defects, or premature failure from low-quality replacement motors. When the evaporator fan motor fails, symptoms include refrigerator not cooling properly (warm fresh food compartment, freezer not freezing), no air circulation noise from refrigerator (fan not running), visible damage to motor housing (cracks or discoloration), burning smell from refrigerator (motor overheating), loud grinding or squealing noise from motor (bearing failure), motor runs but fan blade doesn't rotate (blade stuck or shaft damage), or complete refrigerator failure (no cooling). The WG03F07855 is a direct replacement motor that provides reliable, quiet air circulation for consistent cooling performance and long service life. IMPORTANT: This motor is 115V AC, 1/20 HP. Verify your refrigerator model uses this voltage and horsepower rating before ordering. CRITICAL: Always unplug the refrigerator before working on electrical components to prevent electrical shock and accidental motor activation. This repair involves accessing internal refrigerator components—exercise caution.