Replacement Refrigerator Control Board — Part 383WP / Circuit PCB BK4YB56 / BK4YB39 Restore reliable control and temperature management in your refrigerator or freezer with this direct replacement control board. Designed as a circuit PCB motherboard for fridge and freezer systems, this unit is compatible with part numbers 383WP, BK4YB56, and BK4YB39. Key benefits Restores normal control functions: replaces a faulty or unresponsive control board to bring back programmed temperature control, timing and system coordination. Reduces downtime: a directfit replacement helps get your appliance back into service quickly. Costeffective option: replacing the control board is often quicker and less expensive than replacing the entire appliance. What it does Acts as the central control PCB (motherboard) that manages compressor, defrost cycles, fans and sensors (as implemented in the original appliance design). Replaces the original 383WP / BK4YB56 / BK4YB39 control module to reenable proper fridge/freezer operation when the existing board is damaged or failing. Key attributes Functionality: Circuit PCB control board designed to perform the electronic control tasks of the original refrigerator motherboard. Compatibility: Specifically compatible with part number 383WP and model references BK4YB56 and BK4YB39. Construction: Standard printed circuit board assembly (PCB) built to match the original control module layout and connector locations. Performance: Intended to deliver the same control and signaling functions as the original board, restoring the appliance's programmed behavior. Application: Intended for use in refrigerator and freezer systems that use the referenced control board models. Typical use cases a failed control board in a refrigerator that no longer powers on or displays error codes associated with the motherboard. a freezer with intermittent cooling or defrost control issues traced to the main PCB. Carry as a service spare for appliance technicians who service units using 383WP / BK4YB56 / BK4YB39 control modules. Installation notes Designed as a direct replacement for the referenced part numbers; verify model/part number compatibility with your appliance before installation. Installation should be performed by a qualified technician or by someone familiar with appliance electrical systems to ensure correct connections and safe handling. Compatible part numbers: 383WP, BK4YB56, BK4YB39.