Goodman Furnace Code EE6
Warning
Flame sense signal is weak. The furnace still heats, but the sensor is close to the point where the furnace starts failing to light.
Manual wording: “Flame sense micro amp signal is low.”
Documented for: Goodman GMVC96, GCVC96, GMVM97, GCVM97, GM9S80, GC9S80, GR9S80, GD9S80, GR9T96, GD9T96 (seven-segment display controls)
Likely causes, most common first
- Flame sensor is coated/oxidized
- Flame sensor incorrectly positioned in burner flame
- Lazy burner flame due to improper gas pressure or combustion air
What you can safely check yourself
- No homeowner action needed - book service before it becomes an EE0 lockout
When to call a technician
Cleaning or realigning a flame sensor means working in the burner compartment of a live gas appliance.
A Goodman furnace throwing this code repeatedly has a reason — clearing the code without fixing the cause just hides it.
Sources
- *R9T96 & *D9T96 Two-Stage Gas Furnaces (Type FSP Category IV) - IOG-2038E (Daikin Comfort Technologies (Goodman brand), Goodman GR9T96, GD9T96 two-stage 96% AFUE gas furnaces (current R-32 era production)) · checked 2026-08-25
- Installation Instructions for *CVC96* & *MVC96* Two-Stage Gas Furnace - IOG-2015L (Daikin Comfort Technologies (Goodman brand), Goodman GMVC96, GCVC96 two-stage variable-speed 96% AFUE gas furnaces) · checked 2026-08-25
- Installation Instructions for *R9S80 & *D9S80* Gas Furnace, Category I - IOG-2035C (Daikin Comfort Technologies (Goodman brand), Goodman GR9S80, GD9S80 single-stage 80% AFUE gas furnaces (current production)) · checked 2026-08-25