NuTone Furnace Error Codes - Complete Guide

NuTone furnaces are manufactured by Nordyne and share their control board and flash codes with Frigidaire, Maytag, Westinghouse, Tappan, Gibson, and other Nordyne brands. Also covers Nordyne, Frigidaire, Maytag, Westinghouse, Tappan, Gibson.

All NuTone Error Codes

1 flash

Ignition Lockout

Locked out after multiple failed ignition attempts.

2 flashes

Pressure Switch Stuck Open

Pressure switch open during inducer operation.

3 flashes

Limit Switch Open

High limit switch open - overheating. Usually restricted airflow.

4 flashes

Pressure Switch Stuck Closed

Pressure switch stuck closed when inducer is off.

5 flashes

Flame Sensed With No Heat Call

Flame detected when there should be no heat call - leaky valve.

6 flashes

Reversed Polarity

Line voltage polarity reversed or grounding fault.

7 flashes

Gas Valve Circuit Problem

Gas valve circuit problem - wiring, coil, or board fault.

8 flashes

Igniter Open Circuit

Igniter open circuit - failed hot surface igniter.

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NuTone Furnace Error Codes - Complete Guide

All NuTone Error Codes

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