Goodman GM9C80 / GC9C80 / AM9C80 error codes

Every checked code for the Goodman GM9C80 / GC9C80 / AM9C80 range, with what it means and whether you can fix it yourself.

Error codes

Code	Meaning	What you can do
E10	Grounding fault or poor neutral connection	Call a pro
E11	Rollout switch open	Call a pro
EbL	Blower motor drawing too little current (hard lockout)	Call a pro
EbU	Blower motor drawing current during pre-purge (hard lockout)	Call a pro
EE0	Lockout after three failed ignition attempts	Safe checks first, then a pro
EE1	Pressure switch closed at start of heating	Call a pro
EE2	Pressure switch not closing	Call a pro
EE3	Primary limit switch open	Safe checks first, then a pro
EE4	Flame sensed with no call for heat	Safe checks first, then a pro
EE5	Open fuse on the control board	Call a pro
EE6	Weak flame signal	Call a pro
EE8	High-stage pressure switch closed at start of heating	Call a pro
EE9	High-stage pressure switch not closing	Call a pro
EEA	Reversed polarity or poor ground	Call a pro
EEb	Gas valve not powered when it should be	Call a pro
EEC	Gas valve powered when it should be off	Safe checks first, then a pro
EEE	Internal control board fault	Call a pro
EEH	Twinning error	Call a pro
EEJ	Inducer relay error	Call a pro
EEL	Igniter circuit problem	Call a pro
EEn	Igniter open	Call a pro
IdL	Idle, normal operation	You can often fix it