• Home
• Contact
• About us
• Bard Equipment
• Bard Parts

• 8612-042 OBSOLETE

• MAIN CONTROLLER BOARD

The Bard 8612-042 main controller board is an OEM control module used in Bard wall mounted HVAC equipment to manage core operating functions like call processing, safety inputs, and coordinated staging of heating and cooling components. When a controller board fails, symptoms often include erratic operation, fault lockouts, or a complete no run condition, so replacing the board with the correct Bard part helps restore proper sequencing and reliable system control. Because control boards can vary by unit series and revision, match 8612-042 to your unit model and wiring configuration before ordering, and transfer any required settings exactly as found on the original board.