Forum Discussion

Jackie_Treehorn's avatar
Jackie_Treehorn
Explorer
Jul 08, 2014

Generator running two AC units, outlet appliances get hot

I have an Onan 5500 with about 240 hours on it right now which is supposed to run two rooftop AC units, but I can only get it to run the primary unit and not the bedroom. Both units work fine when I'm...
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jerseyjim's avatar
jerseyjim
Explorer
Jul 08, 2014
Low voltage from the generator? I don't have an ONAN...but do have a 5500 GENERAC, and the owners manual shows a board with an adjustable screw...for voltage.

Once you read the voltage at a suspected outlet, you can, as I did, have a friend inside watching the voltmeter...and you on the outside turning that adjusting screw...both of you connected by cell phone...when the voltage goes up to where it should be...your problem may be solved. Mine was.

g'luck!

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