North star 5500 generator works fine but on voltage output

Check the connections between the alternator (generator) and the regulator/output connectors.

You cannot adjust the voltage output. All generators are rated for 110-125 volt recepticals and usually have at least one 220-240 volt receptical for special appliances that require it such as water heaters, pumps, welders, air conditioners. When one of these higher draw appliances is connected and they begin to draw amperage, the gas engine will automatically increase rpm to produce enough amps. If your generator gauge is showing low voltage such as 60,80 or 90volts for example, then you have overloaded the generator and blown a capacitor, resistor or similar item.

Hi, you can find them on amazon. Take a look here: Portable Generators from Briggs Stratton. I hope this was helpful. Cheers

How long have you had this generator?
Has the generator worked on all of these loads before?
Model 5500 is a 5500 Watt generator which could easily be 5500 watts (Peak) and not continuous.

Your AC is an inductive load.
Your lights are resistive loads

An inductive load can cause issues when starting due to an increased current demand at start up that some generators cringe under. Do the lights flicker or are they stable? I'd say your diodes on your stator are working if you have light stability but you haven't provided nearly enough information for a detailed solution.

I'm sure you have enough voltage but you aren't getting enough current to run specific loads. How many watts is your AC? How many watts for your microwave? Both of these units demand a great deal of energy to run and when you place too much demand on your generator, it will choke it out and eventually, will cause damage to the generator. You may consider getting a beefier generator with a greater amount of wattage output.


Seeing these specs online and noting what you are trying to run, you have an undersized generator and need to get one that can produce a greater amount of running wattage (as well as peak wattage).

Is there voltage on generator terminals. If not you must recharge the field or check the Voltage Regulator output

wire a 120v 15a to 9vdc or 12vdc battery make sure you have no voltage out of the 240 side. with the unit running plug into the 120v receptacl QUICKLY pull out. check power out put. if it did'nt work check your battery, than do it again twice as long. you must check all component before doing this to make sure you don't have any other fail-er. this is danger-us be careful. good luck

Is the Output switch in the "ON" position...the switch is normally on the Outlet manel

Hi there,
Yes it is very possible that you blew 1 or more diodes in the rotor when you overrevved the generator. You also likely shorted the MOV devices that go across the diodes as well. What happened is that the over speed of the rotor caused it to make a much higher voltage than it was designed for and something had to give. I'd suggest that you also look at the capacitor that connects to the stator windings (it's a little like a voltage regulator), you've probably exceeded its voltage rating.
This is pretty much why there are governor mechanisms on generators, much more than 20% or so overspeed makes nasty things happen.

Carl

Small generators like this almost always have 2 stator windings 180 degrees out pf phase, that's how it makes the 220.
At the back (maybe side) of the outlet box should be a molex type plug that has the wires from the stator, get an ohm meter and measure them (with the generator shut off of course). You should find that you've got 4 wires in the plug, 1 wire for each end of 2 coils. From one end to the other of each coil you should measure less than an ohm, between the coils there is usually no connection, but some models have the neutral ends of each coil connected together inside the generator housing.

It sounds to me like you've got one of the power windings open...

Carl