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Green printed circuit board with black components and edge connector

WHITE RODGERS (EMERSON ELEC)

WHITE RODGERS 50A56-956 Furnace Board hvac control

SKU CH-F5WF-6FJHM

Integrated furnace control board with 25 V AC input voltage, compatible with York and ICM systems

  • OEM replacement for York furnace systems
  • Integrated board controls ignition, fan and safety circuits
  • 25 V AC input and control voltage
  • Replaces White-Rodgers 50A56-242, 50A56-243, 50A56-956
  • Cross-references ICM2808 and multiple York S1 part numbers

WHITE RODGERS 50A56-956 Furnace Board

This integrated furnace control board serves as a direct OEM replacement for York furnace systems. It manages ignition, gas valve operation and blower timing in residential heating equipment. The board accepts 25V AC input and operates at a 25V control voltage. Installers and maintenance technicians use it to restore original functionality.

Thermals noise and power draw

The board draws low-voltage AC power from the furnace transformer during normal heating cycles. Solid-state components generate minimal heat inside the control compartment. No moving parts or fans are present, so the unit adds no audible noise to the system. Power consumption is limited to the control circuit and relay coils.

What the bundled accessories change

The package contains only the control board itself with no additional hardware, wiring harnesses or software. Installers must reuse the existing mounting screws, wiring connectors and furnace cabinet grounding points. No configuration utility or firmware update tool is supplied or required. The board functions immediately when wired to the original equipment specification.

Highlights

  • OEM replacement for York furnace systems
  • Integrated board controls ignition, fan and safety circuits
  • 25 V AC input and control voltage
  • Replaces White-Rodgers 50A56-242, 50A56-243, 50A56-956
  • Cross-references ICM2808 and multiple York S1 part numbers

Specifications

BrandWHITE-RODGERS

Questions about this item

How do I install the 50A56-956 furnace board and which wiring step is most often missed?

Turn off power, label every wire before removing the old board, mount the new board using the original standoffs, then reconnect each wire to its matching terminal — the step most often missed is re-seating the flame-sensor lead on the correct spade.

What maintenance or replacement will the 50A56-956 board need later?

The board itself has no user-serviceable parts; plan to replace the flame sensor every few heating seasons and keep the burner compartment clean so the board’s micro-controller is not exposed to excess dust or moisture.

What is the first limit that appears on the 50A56-956 during a long heating cycle?

The integrated control is rated for 25 V AC input; sustained voltage above that level will trigger the board’s internal protection before any thermal limit on the furnace itself is reached.

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