Operating Guide

ManualsBrandsCRAFTSMAN ManualsElectricalCraftsman 3300-Watt Gasoline Portable Inverter Generator

CO Detection

Carbon Monoxide (CO) Detection and Shutoff System (if equipped)

DANGER: Asphyxiation. Running engines produce

carbon monoxide, a colorless, odorless, poison-

ous gas. Carbon monoxide, if not avoided, will

result in death or serious injury. (000103)

WARNING: Asphyxiation. Always use a battery

operated carbon monoxide alarm indoors and

installed according to the manufacturer’s

instructions. Failure to do so could result in death

or serious injury. (000178a)

The CO Detection module monitors for the accumula-

tion of poisonous CO gas found in engine exhaust when

the generator is running. CO Detection automatically

shuts off the engine if it detects increasing levels of CO

gas. CO Detection only monitors when the engine is

running. Generators are intended to be used outdoors,

far from occupied buildings, with the exhaust pointed

away from personnel and buildings. However, if misused

and operated in a location which results in the accumu-

lation of CO—like indoors or in a partially enclosed

area—CO Detection shuts off the engine, notifies the

user of what has happened, and directs the user to read

the instruction action label for steps to take (Fig. H). CO

Detection is not a substitute for an indoor carbon mon-

oxide alarm.

As the user approaches the generator to investigate a

shutoff, a blinking RED light in the CO Detection badge

on the side of the generator notifies the user the genera-

tor was shutoff due to an accumulating CO hazard. The

RED light will blink for at least five minutes after a CO

shutoff. Move the generator to an open, outdoor area

and point the exhaust away from people and occupied

buildings. Once relocated to a safe area, the generator

can be restarted and the correct electrical connections

made to supply electrical power. The RED light will stop

blinking automatically upon engine start. Introduce

fresh air and ventilate the location where the generator

had shut down.

If a CO Detection system fault has occurred and no lon-

ger provides protection, the portable generator shuts off

automatically, and the YELLOW light in the CO Detection

badge will blink for at least five minutes to notify the

user of the fault. The CO Detection module can only be

diagnosed and repaired by a trained technician at the

dealer. The generator can be started, but may continue

to shutoff.

CO Detection will detect the accumulation of CO from

other fuel burning sources such as engine powered tools

or propane heaters used in the area of operation. For

example, if another generator is used and the exhaust is

pointed at a CO Detection equipped generator, CO

Detection may initiate a shutoff due to rising CO levels.

This is not an error as hazardous CO has been detected.

The user must take action to move and redirect these

devices to better dissipate CO far away from personnel

and occupied buildings.

• See Fig. G. IF red LED

is flashing, a CO Shutoff has

occurred.

• IF yellow LED

is flashing, a CO System Fault has

occurred.

Fig. G

Fig. H

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