Rcd hk42fz036 Furnace Control Board Replacement

Product Description

The RCD hk42fz036 is an OEM-style replacement furnace control board designed to monitor system operation and trigger fault alerts when a malfunction is detected. Installed in residential gas furnaces, this board serves as the central logic component that manages ignition sequencing, blower motor timing, and safety circuit monitoring. Licensed HVAC technicians install this board as a direct replacement when the original control board fails or produces error codes that indicate logic-level faults. At 9.6 inches long, 6.9 inches wide, and 2.6 inches in height, it is sized to fit standard furnace control board mounting positions. Weighing 2 pounds, it ships and handles easily during service calls.

This control board is suited for residential gas furnace applications where the original board has failed, is producing fault codes, or has sustained damage from voltage irregularities or age-related component failure. Compatible units include the 912SA30040S14A-A, 912SA30060S14A-A, and 912SA42060S17A-A, along with additional models not listed here. It is appropriate for both service replacement and preventive maintenance scenarios where control board integrity is in question.

Key Features

• Detects system malfunctions and activates fault alert indicators to assist troubleshooting
• OEM-style replacement designed to maintain original system logic and sequencing
• Compact form factor at 9.6 x 6.9 x 2.6 inches fits standard furnace board mounting
• Manages ignition sequencing and blower motor timing as central furnace logic board
• Helps prevent equipment damage caused by undetected faults or control-side failures

Compatibility

Compatible with furnace units including the 912SA30040S14A-A, 912SA30060S14A-A, and 912SA42060S17A-A. Additional compatible models exist beyond those listed here. Verify the original board part number before ordering to confirm fitment.

Installation Notes

Installation should be performed by a licensed HVAC technician. Always disconnect and lock out power to the furnace at the disconnect switch and breaker before removing the existing control board. Follow the original wiring layout when reconnecting leads to the replacement board, and consult the furnace service manual for board mounting orientation and connector positions. Do not restore power until all connections are secured and the furnace cabinet is reassembled.

Technical Specifications

• Length: 9.6 inches
• Width: 6.9 inches
• Height: 2.6 inches
• Weight: 2 pounds

Standard Information

• Brand: RCD
• Manufacturer Part Number: hk42fz036