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904085 Nordyne L1RC Combustion Inducer Motor Assembly

904085 Nordyne L1RC Combustion Inducer Motor Assembly

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904085 Nordyne L1RC Combustion Inducer Motor Assembly

Product Overview

904085 is a genuine Nordyne OEM combustion inducer motor assembly engineered for Nordyne L1RC series gas furnaces. It evacuates combustion byproducts from the heat exchanger, establishes proper draft for safe ignition, and comes as a complete plug-and-play module with motor, blower wheel, housing gasket, and mounting hardware.


Technical Specifications

Specification Detail
Part Number 904085
Motor Type Permanent Split Capacitor (PSC)
Voltage 115 VAC, 60 Hz
Current Draw 1.4 A
Speed 3,400 RPM
Blower Wheel Diameter 6 in
Blower Wheel Width 8 in
Shaft Diameter 5/16 in
Housing Material Cast aluminum
Ambient Operating Range –40 °F to +150 °F
Shipping Weight 6.36 lb
Shipping Dimensions (L×W×H) 10 × 12 × 12 in


Cross-Reference Part Numbers

No documented superseded or alternate part numbers exist; 904085 is the direct OEM replacement for the L1RC inducer motor assembly.


Compatibility

Fits Nordyne and Nordyne-Miller L1RC series single-stage gas furnaces, including but not limited to:

  • L1RC040HA, L1RC045HA, L1RC055HA, L1RC060HA models

  • Private-label equivalents built on the same L1RC combustion platform

Always verify your furnace’s data-plate model number and inducer motor requirement before ordering.


Technician Notes

  1. De-energize the furnace at the service disconnect and shut off the gas supply.

  2. Remove the furnace access panels to expose the inducer motor housing.

  3. Photograph or label all wiring harness connectors and vacuum tubing to ensure accurate reconnection.

  4. Disconnect the vacuum hose from the inducer housing port and unplug the motor wiring harness.

  5. Remove mounting screws and extraction old inducer assembly. Inspect and replace the housing gasket if damaged.

  6. Position the new 904085 assembly, align the gasket, and torque mounting screws evenly to OEM specifications.

  7. Reconnect the vacuum tubing, ensuring a snug, leak-free fit on the blower housing barb.

  8. Reattach the motor wiring harness, restore line voltage and gas supply.

  9. Initiate a heat call; confirm the inducer motor runs smoothly, creates proper draft, and the furnace proceeds to ignition.

  10. If the furnace still locks out or the motor fails to start, verify line voltage at the motor terminals, inspect the venting path for obstructions, and check that the gasket seals correctly.