Honda EU10i Manuel De L'utilisateur page 31

Output and Overload Indicators
The Output indicator (green) will remain ON during normal operating
conditions.
If the generator is overloaded (in excess of 1.0 kVA), or if there is a
short in the connected appliance, the output indicator light (green) will
go OFF, the overload indicator light (red) will go ON and current to the
connected appliance will be shut off.
Stop the engine if the Overload indicator (red) comes ON and
investigate the overload source.
Before connecting an appliance to the generator, check that it is in
good order, and that its electrical rating does not exceed that of the
generator. Then connect the power cord of the appliance, and start
the engine.
When an electric motor is started, both the Overload indicator (red)
and the Output indicator (green) may go on simultaneously. This is
normal if the Overload indicator (red) goes off after about five (5)
seconds. If the Overload indicator (red) stays on, consult your Honda
generator dealer.
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OUTPUT INDICATOR LIGHT
(GREEN)
OUTPUT INDICATOR LIGHT
(RED)