What does Daikin code E6 mean?
Daikin furnace code E6 means the control detected a low flame-sensor signal on the supported control family. Confirm the model number and diagnostic chart inside the furnace door before replacing parts.
What causes Daikin code E6?
- A dirty flame sensor
- Poor furnace grounding or reversed polarity
- Low gas pressure or an unstable burner flame
Can I troubleshoot Daikin code E6?
- Turn furnace power off and confirm its access panel is fully seated.
- Try one reset and note whether the burners light briefly before shutting off.
How much does Daikin code E6 cost to fix?
A flame sensor cleaning or replacement typically costs between $100 and $400 nationally.
When should I call a technician?
Call a technician if flame drops out again; flame current and combustion should be measured.
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.