Generac 3300i Blinking RED light
What it means: The generator shut off because carbon monoxide is accumulating from the exhaust. The red light in the COsense badge blinks for at least five minutes after the shut-off.
What to do
Move the generator to an open outdoor area and point the exhaust away from people and occupied buildings. Once it is in a safe area, it can be restarted and connected. Ventilate the location where it shut down.
When to call service
The manual lists steps the owner can take. If the code comes back after them, or you are unsure, contact an authorized service dealer. The unit stops or will not start until the cause is cleared.
Source: official Generac manual, page 11, read . Summary of the manual, not a reproduction.
Models this manual covers
Questions
What does Generac Blinking RED light mean?
The generator shut off because carbon monoxide is accumulating from the exhaust. The red light in the COsense badge blinks for at least five minutes after the shut-off. (Generac manual for the 3300i, page 11.)
How do I fix Generac Blinking RED light?
Move the generator to an open outdoor area and point the exhaust away from people and occupied buildings. Once it is in a safe area, it can be restarted and connected. Ventilate the location where it shut down.
Fuel, gas and electrical work on a portable / inverter generator is for qualified technicians; follow the safety section of the manual. All 1 3300i codes →