Armstrong R40403-003 Blower Control BoardThe Fan Timer Blower Control Board, specifically the Armstrong R40403 003, delivers precise blower timing for reliable HVAC performance. This model acts as a robust replacement for compatible systems, ensuring smooth operation and energy efficient cycles in Armstrong applications. Engineered as an HVAC control board, the R40403 003 supports efficient blower cycles and dependable performance. Its durable construction resists wear, while built in

Rotation is clockwise and it uses a direct drive design for simple installation and reliable performance

The board is categorized as a Type Furnace Control Board and is used on furnaces requiring reliable electronic control

Valve Position: Normally Closed (NC)

Engineered for efficiency

Reliable pressure control for consistent performance

With an aluminum body and a 1/2 inch nominal size

Temperature Rating: -40 to 176 deg F

this thermocouple responds quickly to temperature changes

This aluminum anode rod kit is a reliable AO Smith replacement part

Temperature (Storage): -40 to 80 °C

With a 250V AC primary input and a 10

This Honeywell ignition module kit delivers reliable starts