Goodman Error Codes & Fault Codes
Complete LED flash code reference for Goodman, Amana, and Daikin ducted furnaces. Bookmark this page for quick field lookups.
| Code | Description |
|---|---|
| Steady ON | Normal operation |
| 1 flash | Ignition lockout |
| 2 flashes | Pressure switch stuck closed |
| 3 flashes | Pressure switch open / inducer fault |
| 4 flashes | Open limit switch |
| 5 flashes | Flame sensed with no call |
| 6 flashes | Power reversed / ground fault |
| 7 flashes | Gas valve circuit error |
| 8 flashes | Low flame signal |
| 9 flashes | Check igniter |
Detailed Code Reference
Frequently Asked Questions
What does Goodman error code 8 flashes mean?
Eight flashes on a Goodman furnace indicates a low flame signal. The flame sensor is detecting a weak flame. The most common fix is cleaning the flame sensor with fine emery cloth or steel wool. Also check gas pressure to ensure the furnace is getting adequate supply.
What does Goodman error code 3 flashes mean?
Three flashes on a Goodman furnace means the pressure switch is open or there is an inducer fault. Common causes include a failed inducer motor, blocked flue or condensate drain, a disconnected pressure switch hose, or a bad pressure switch. Start by checking the inducer motor and clearing any obstructions.
How do I reset a Goodman furnace?
To reset a Goodman furnace showing 1 flash (ignition lockout), turn off power at the breaker for 30 seconds and restore it. Before resetting, check the hot surface igniter for cracks, verify gas supply is on, and clean the flame sensor.
Are Goodman and Amana error codes the same?
Yes. Goodman and Amana are manufactured by Goodman Manufacturing (a Daikin subsidiary). They share the same control boards and LED flash code system. Daikin ducted units also use these same codes.
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