question

Ok you will need to connect to the unit via a MK3 interface with a computer and the Victron VE config program. then try changing the UPS selection to off and see if this helps, if not also try turning ON week AC (this is under the charger tab)

One of these selections should help you (Some times both need to be turned on) its usually due to a moving or unsteady frequency (or dirty sign wave) from the generator or the shore power supply.

also now a days you can also do this with your android phone and using Victron Connect app, but you still need a MK3 usb to VE Bus unit ( NOTE as far as I know the older MK2 will not work with the Victron Connect app)

Thanks Paul,

I do have the cable and will check this out. I think I already set last year as I had issues but will double check. If indeed set correctly, I'm lost.

Connected the MK3 interface and fairly quickly found the issue... At random intervals, the MP registers the incoming generator frequency incorrectly. Suddenly you see it jumping from 61.2 to 157Hz, 116Hz etc. This is only for a split second, but enough to disable the charger function. I'm afraid that this is caused by a "dirty" AC and the MP12/2000. Probably nothing I can do about this...