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Power jack 10kw low voltage


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I just powered up my PJ 10kw inverter. The output voltage is reading low around 102 volts. The last time I checked it was fine. I know there is a voltage adjustment but I’m not sure which pot does it. I know one does frequency and I don’t want to change that one.  I’d like to know what caused it to change. 

some help would be appreciated. 

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Neither potentiometer adjusts frequency, that's controlled by the CPU (and one of the pushbuttons--if present).  One pot adjusts battery voltage feedback, the other adjusts AC voltage feedback.

Note that PJ inverters will characteristically have serious regulation oscillation, so this may be part of the voltage change.

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