The Nordyne 903429A is an OEM integrated furnace control board that manages the complete heating sequence, including thermostat inputs, inducer operation, ignition sequence, gas valve control, blower operation, safety circuits, and diagnostic functions. It is the updated replacement for the discontinued 903429 board.
Specifications
Manufacturer: Nordyne / Nortek Global HVAC
Part Number: 903429 / 903429A
Product Type: Furnace Control Board / Integrated Control
Series: M1 Series
Control Voltage: 24 VAC
Application: Gas Furnace
Replacement For903429, 624602, 624640
Board Function: Ignition, blower, inducer, safety monitoring, diagnostics
Diagnostic Feature: LED fault indication
Mounting: OEM direct replacement
Status: 903429 discontinued; replaced by 903429A
The Nordyne 903429A is an OEM integrated furnace control board that manages the complete heating sequence, including thermostat inputs, inducer operation, ignition sequence, gas valve control, blower operation, safety circuits, and diagnostic functions. It is the updated replacement for the discontinued 903429 board.
Specifications
Manufacturer: Nordyne / Nortek Global HVAC
Part Number: 903429 / 903429A
Product Type: Furnace Control Board / Integrated Control
Series: M1 Series
Control Voltage: 24 VAC
Application: Gas Furnace
Replacement For903429, 624602, 624640
Board Function: Ignition, blower, inducer, safety monitoring, diagnostics
Diagnostic Feature: LED fault indication
Mounting: OEM direct replacement
Status: 903429 discontinued; replaced by 903429A
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