The Avantco KL-4-12 (BC105887) Mainboard Controller is a genuine OEM electronic control module engineered for precise system regulation in Avantco VOA Series open-air merchandisers. This controller manages critical functions such as temperature regulation, compressor cycling, fan operation, and system monitoring. If your unit is experiencing cooling inconsistencies, display/control issues, or operational faults, replacing the mainboard is often the correct solution. Key Features OEM mainboard controller for VOA open-air merchandisers Regulates temperature, compressor operation, fan control, and system logic Ensures stable performance and accurate cooling management Factory-designed for reliable, long-term operation Direct-fit replacement with correct wiring connections Specifications Part Number: KL-4-12 Alternate Part Number: BC105887 Type: Mainboard / Electronic Controller Function: System control and temperature management Application: VOA Open-Air Refrigerated Merchandisers Compatible Models: Avantco Refrigeration VOA-36-B Avantco Refrigeration VOA-36-W Avantco Refrigeration VOA-48-B Avantco Refrigeration VOA-48-W Avantco Refrigeration VOA-60-B Avantco Refrigeration VOA-60-W Why Choose This Item This OEM controller ensures accurate cooling control, smooth equipment operation, and factory-level performance. It is the ideal replacement to restore reliable functionality, protect components, and maintain consistent product temperatures in your VOA Series open-air merchandiser.