- 【Compatible】: Replacement for R40403-001, R40403-002, R40403-003, 20054501, ST9120C 2010. Fits Concord furnaces, Armstrong Ultra SX 80, SX90, Honeywell ST9120A/B/C, Ducane, Lennox.
- 【Benefits】: Enhance your furnace's reliability with the R40403-003 blower control board designed for optimal performance in heating systems. This part ensures consistent operation and helps maintain comfortable indoor temperatures by regulating the blower motor efficiently.
- 【Feature】: Engineered with high-quality PCB material for exceptional moisture resistance and durability. This controller manages a two-speed indoor blower motor and a single-speed inducer motor. Its advanced design allows user-selectable blower delays through dip switch settings, ensuring efficient performance tailored to your needs.
- 【Technical Details】: Operating line voltage ranges from 85 to 135 VAC at 50/60Hz. The secondary control voltage is between 18.0 to 30.0 VAC also at 50/60Hz. It supports maximum blower loading of 15FLA, 30LRA (120 VAC) and 7.5FLA, 15LRA (240 VAC).
- 【Installation Guide】: Designed for hassle-free installation with clear wiring instructions included. This component integrates seamlessly with both original and updated wiring configurations without needing additional wiring kits.
On Apr 25, 2026 at 21:10:21 PDT, seller added the following information: