What does Daikin code E0 mean?
Daikin furnace code E0 means the control locked out after excessive ignition retries or recycles on the supported control family. Confirm the model number and diagnostic chart inside the furnace door before replacing parts.
What causes Daikin code E0?
- No gas reaching the burners
- A failed hot-surface igniter
- A dirty or weak flame sensor
Can I troubleshoot Daikin code E0?
- Confirm the thermostat is calling for heat and the gas shutoff has not been moved.
- Turn furnace power off for five minutes, restore it once, and note whether the same code returns.
How much does Daikin code E0 cost to fix?
A furnace ignitor replacement typically costs between $150 and $750 nationally.
When should I call a technician?
Call a licensed technician if ignition fails again after one reset or if you smell gas.
Symptoms this code causes
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: AR9S/GR9S and matching Daikin DR-series single-stage controls that display this E-code.
- Goodman Manufacturing: Service and Troubleshooting
RS6621301 · Goodman/Amana AR9S and GR9S, and Daikin DR-series single-stage furnace controls; use only for the E-code entries explicitly listed in the manual.
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.