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Daikin Furnace Error Codes - Complete Guide

Daikin furnaces in the North American market are built by Goodman (acquired by Daikin) and share their control boards and flash codes with Goodman and Amana. Also covers Goodman, Amana.

All Daikin Error Codes

1 flash with extended pause
Goodman 1 Flash — Lockout Due to Excessive Retries
Locked out after exhausting ignition retry attempts.
2 flashes
Goodman 2 Flashes — Pressure Switch Stuck Closed
Pressure switch stuck closed when inducer is off.
3 flashes
Goodman 3 Flashes — Open Pressure Switch With Inducer On
Pressure switch open during inducer operation — vent or inducer issue.
4 flashes
Goodman 4 Flashes — High Limit Switch Open
High limit switch open — overheating. Usually a dirty filter.
5 flashes
Goodman 5 Flashes — Flame Sensed With Gas Valve Off
Flame detected when gas valve closed — leaky valve.
6 flashes
Goodman 6 Flashes — Roll Out Switch Open (SAFETY)
Flame rollout switch tripped — get a CO safety inspection before reset.
7 flashes
Goodman 7 Flashes — Low Flame Signal
Weak flame sensor signal — usually a dirty sensor.
8 flashes
Goodman 8 Flashes — Igniter Error
Igniter fault — failed or cracked hot surface igniter.
9 flashes
Goodman 9 Flashes — Grounding or Polarity Reversed
Grounding or polarity reversed — wiring issue.

Need Help With Something Else?

If you don't see your code here, try our master error code lookup covering all major brands, or our symptom-based diagnostic tool.

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