Replacement R40403-003 Air Furnace Blower Control Circuit Board for Armstrong Ultra SX 80 SX90 for Honeywell ST9120C for Ducane for Lennox
$88.69$98.00
Description
Blower control board for Concord furnaces for Armstrong Ultra SX 80 SX90, for Honeywell ST9120C, for Ducane, for Lennox.Replaces all 40403-001, 40403-002 and ST9120A, B or C blower controls.The R40403-003 blower control provides outputs for a 2 speed indoor blower motor and single speed inducer motor.The control receives inputs from the thermostat (W, Y, and G), pressure switch, and high temperature limit switches.Note: To save yourself some hassle, you can take a picture of the old one before removing it. Make sure getting the wires on the correct terminals
