Honda EU30is Owner's Manual page 35

Output and Overload Indicators
The Output indicator (green) will remain on during normal operating
conditions.
If the generator is overloaded (see page 29), or if there is a short in the
connected appliance, the Output indicator (green) will go OFF, the overload
indicator (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.
NOTE:
The Overload indicator (red) also lights in the following cases:
• When the inverter is overheated; the current to the connected appliance will
be shut off. Check to see if the air intake is obstructed.
• 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.
OUTPUT INDICATOR
(GREEN)
NOTE:
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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OVERLOAD INDICATOR
(RED)