KIB Monitor Panel dead

[fuzzychin]

We recently purchased an '04 Fleetwood Southwind 32' and in my naivete I replaced the 6-volt coach batteries with 12-volts. I wired them in series so I sent 24 volts of power into the coach. I quickly realized that my inverter was in a fault state and disconnected them. This error has since been corrected with the correct 6-volt batteries but I now have no power to my KIB systems monitor panel. I have re-checked my connections and the polarity is correct. I have searched for a fuse but have come up short so far. In fact I have checked every fuse I can find just to ensure it isn't tied to an erroneous circuit. I spoke with the manufacturer thinking the surge fried the circuit board. I tested voltage at the control panel circuit board and determined it is not getting power so the board appears to be safe at this point. I wonder if anyone has had a similar experience or suggestion that might lead me to a solution??

[TQ60]

Problem with modern electronics is "high speed"...they are magic.

But they are faster than fuses...

Hopefully something had a crowbar protector in it that took out a fuse someplace.

Many items smoke instantly in double voltage while others not as sensitive.

If you see ni voltage someplace then work towards the source.

You may need to get a wiring diagram.