What does Daikin code 8 Flash mean?
Daikin furnace code 8 Flash means the igniter circuit or furnace ground reported a fault on the supported control family. Confirm the model number and diagnostic chart inside the furnace door before replacing parts.
What causes Daikin code 8 Flash?
- A cracked or open hot-surface igniter
- Loose or damaged igniter wiring
- A failed igniter relay on the control board
Can I troubleshoot Daikin code 8 Flash?
- Turn power off and look through the burner-viewing area for an obviously cracked igniter without touching it.
- Restore power once and observe whether the igniter glows; do not continue resetting the furnace.
How much does Daikin code 8 Flash cost to fix?
A furnace ignitor replacement typically costs between $150 and $500 nationally.
When should I call a technician?
Call a technician if the igniter does not glow or the fault returns.
Sources and model scope
Fault codes vary by model and control board. Confirm the diagnostic chart inside your furnace panel or the official manual before acting.
Scope used here: DM80HS-style integrated controls using the documented 1–8 flash chart.
- Daikin Comfort Technologies: DM80HS Single-Stage Multi-Speed Gas Furnace — Product Specifications
SS-DM80HS · The 1–8 flash integrated-control family documented for DM80HS-series furnaces; sister-brand models must use the same control chart.
Compiled by Warmlo Editorial · Reviewed August 2026
This is general information, not professional advice. Gas, electrical, and combustion repairs can be dangerous — when in doubt, call a licensed technician.