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PH3300i SM, Rev. 2017-01-20
4.9 No or Low AC Output
This generator is equipped with a low voltage shutdown feature. If conditions are
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such that the engine begins to bog down before enough power is produced for
the inverter to overload, the voltage will begin to fall as the engine loses speed.
When this happens the low voltage protection will turn on the overload light, and
shutdown the inverter to protect delicate electronic equipment. When the inverter
has been shut down due to low voltage, it cannot be reset with the rest button on
the control panel. The unit must be shut down with the key and restarted to
restore AC power output.
Is the Overload Indicator light on?
Disconnect the load and press the
overload reset button. If the inverter fails
to reset, test reset button and wires to
inverter. If reset button and wires are OK,
replace inverter (section 5.10).
Check all circuit breakers. Are any of
them tripped?
Disconnect the load and reset the
breakers.
Stop the engine and check the AC
receptacles for burnt contacts and loose
or burnt connections.
Check to see if the engine feels jammed
or seized upon being shut down.
Inspect the rotor magnets for damage,
replace the rotor if damaged (section 5.9).
Replace the AC receptacles if necessary.
Replace inverter (section 5.10).
Measure the stator output voltage while
running (section 4.10), and the stator
winding resistance (section 5.9.1).
Inspect and repair stator wire harness or
replace stator (section 5.9.2). Check
cylinder for foreign objects.
Normal
Yes
No
Tripped
Not tripped
Normal
Engine
jammed
Abnormal
Engine turns normally
Abnormal
