Honda EM50is Owner's Manual page 36

Substantial overloading that continuously lights the Overload
indicator (red) may damage the generator. Marginal overloading
that temporarily lights the Overload indicator (red) may shorten the
service life of the generator.
Be sure that all appliances are in good working order before
connecting them to the generator. If an appliance begins to operate
abnormally, becomes sluggish, or stops suddenly, turn off the
generator engine switch immediately. Then disconnect the
appliance, and examine it for signs of malfunction.
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