Power supply problem: gas furnace codes by brand

Supply voltage or frequency is outside the unit's operating range.

Brand	Code	Meaning	What you can do
Carrier	46.1	Momentary loss of power	Call a pro
Goodman	b6	Blower motor shut down for voltage or overheating	Call a pro
Goodman	E5	Open fuse on the control board	Call a pro
Goodman	Eb6	Blower motor shut down for voltage or overheating	Call a pro
Goodman	EE	No power to the control board, or an internal control fault	You can often fix it
Goodman	EE5	Open fuse on the control board	Call a pro
Carrier	amber light off	No power to the furnace control	You can often fix it
Goodman	light off	No power to the control board	Safe checks first, then a pro
Goodman	10 red flashes	Power supply problem or gas valve fault (depends on model)	Depends on your model