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Hank F.
Hank F., Technician
Category: Small Engine
Satisfied Customers: 14990
Experience:  Certified on Onan and Generac generators
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I have a honda eu300is and ran it with a 600 wat load and it

Customer Question

hello i have a honda eu300is and ran it with a 600 wat load and it went into overload and the light for overload came on. also tried a portable heater 1500 watts plugged right into inverter and about an hour later over load
Submitted: 1 year ago.
Category: Small Engine
Expert:  Hank F. replied 1 year ago.

Hello, thank you for requesting me.

There are only 2 possibilities here:

1. Bad inverter (it is not servcieable).

2. Bad stator.

Open the maintenance access door.

On the inverter, remove the 6 pin connector that has 2 gray wires and 3 red wires.

Holding the plug with the locking tab up, and the pins facing you, the wires are identified as, from left to right, starting with the top row: Gray 4, Red 1, Red 2.

Bottom row : Gray 5, empty, Red 3

Being VERY careful, start the genset, and manually move the throttle open until the engine reaches a speed of about 3500 rpm.

With your meter set to VAC, test from Red 1 to Red 2, then from Red 2 to Red 3. Bot shoul read 250 - 260 volts.

Then test from Gray 4 to Gray 5. It should read 8 - 16 VAC.

If any of those readings are bad, the stator is bad.

If those readings are good, the inverter is bad.