The Nordyne FG6RC 080C-16B is an 80,000 BTU downflow gas furnace designed for manufactured and mobile home installations under HUD standards. The 080C-16B designation indicates 80,000 BTU input capacity in a 16-inch wide cabinet. The KG6RC 080C-16B is the same furnace under a different Nordyne brand designation. In the downflow orientation the FG6RC 080C-16B delivers heated air downward into the subfloor duct system, with the burner box at the top of the cabinet and the inducer drawing combustion gases upward before exhausting them. Repair Clinic stocks genuine Nordyne OEM parts for the FG6RC 080C-16B. Browse the Nordyne furnace parts catalog filtered by FG6RC 080C-16B for the complete parts inventory.
FG6RC 080C-16B: Downflow Platform Service Differs from Upflow Furnace Work
In the FG6RC 080C-16B downflow configuration, moisture from combustion gases accumulates near the inducer housing more readily than in upflow installations, accelerating bearing wear. Pressure switch hose routing runs through a confined space in the downflow cabinet that is prone to kinking when insulation is displaced during service. The control board is programmed for the downflow orientation and must not be substituted with an upflow Nordyne board. The FG6RC 060C-12A is the smaller sibling of this model at 60,000 BTU; the pressure switch and inducer from the 060C must not be substituted into the 080C-16B installation. The Nordyne furnace troubleshooting guide covers fault codes for the FG6RC control board.
Most Replaced Parts on the Nordyne FG6RC 080C-16B
FG6RC 080C-16B Hot Surface Igniter
The FG6RC 080C-16B igniter is positioned in the burner box at the top of the downflow cabinet, accessible after removing the upper access panel with power and gas disconnected. An open-circuit igniter causes the control board to time out at the ignition stage and lock out the furnace after two or three attempts. The silicon nitride igniter on this platform should test between 40 and 90 ohms at room temperature.
FG6RC 080C-16B Flame Sensor
The FG6RC 080C-16B flame sensor confirms sustained combustion in the downflow burner assembly. A furnace that lights and shuts off within two to five seconds of ignition, repeating until lockout, is showing the flame sensor symptom with high specificity. Annual light cleaning with fine steel wool is the most cost-effective preventive maintenance step for this component.
FG6RC 080C-16B Control Board
The FG6RC 080C-16B control board sequences the downflow blower and ignition timing specific to this model and must not be substituted with a board from an upflow Nordyne model. Read and document the LED blink code before ordering any replacement. A board that generates the same fault code repeatedly after all identified components have been tested is a strong indicator of board failure.
Draft Inducer Motor for FG6RC 080C-16B
In the downflow orientation the FG6RC 080C-16B inducer draws combustion gases upward through the heat exchanger. Moisture condensation near the inducer housing in this upward-draw configuration is chronic and accelerates bearing wear. An inducer that grinds at startup should be replaced proactively, complete bearing seizure means no heat until the part is installed and the furnace is restored to service.
Pressure Switch
The FG6RC 080C-16B pressure switch is calibrated for the draft characteristics of the 80,000 BTU downflow heat exchanger. It must not be substituted with a switch from the FG6RC 060C-12A, which has a lower trip point. Inspecting the pressure hose for kinks behind displaced insulation is the first diagnostic step before replacing a switch showing a fault code.
Nordyne FG6RC 080C-16B Parts at Repair Clinic
- OEM Nordyne parts for the FG6RC 080C-16B and the interchangeable KG6RC 080C-16B designation — Nordyne furnace parts catalog
- Downflow furnace service notes for moisture-related inducer wear, pressure hose routing, and upper panel access on the FG6RC platform
- Inducer, igniter, and control board components in stock for rapid FG6RC 080C-16B repairs
- 365-day returns on uninstalled parts with no restocking fees
Nordyne FG6RC 080C-16B Furnace Parts FAQ
Are the Nordyne FG6RC 080C-16B and KG6RC 080C-16B the same furnace?
Yes. The FG6RC and KG6RC share the same downflow manufactured home platform. The prefix indicates the brand channel through which the furnace was originally sold, not a fundamental engineering difference. Service parts are interchangeable between both designations.
How do I access the igniter in the Nordyne FG6RC 080C-16B?
In the downflow configuration the burner box is at the top of the cabinet. Remove the upper access panel to expose the burner compartment. Always disconnect power and turn off the gas supply at the shut-off valve before reaching into any furnace cabinet for service.
Why does the FG6RC 080C-16B inducer grind at startup?
Grinding at inducer startup on the FG6RC downflow platform is almost always bearing failure caused by moisture condensation in the inducer housing in this orientation. The complete inducer assembly should be replaced rather than attempting to service the bearing.
What is the difference between the FG6RC 080C-16B and FG6RA 096C-16B?
The FG6RC series tops out at 80,000 BTU with the 080C model. The FG6RA series includes the higher-output 096C-16B at 96,000 BTU. The inducer motor and pressure switch specifications differ between these output classes and must not be cross-substituted.
