I was going to ask the same question Mr. twinboat.
I also don't see why you would benefit from turning all the circuit breakers off and running through the circuits since they are apparently not affected by the short.
If you are drawing that many amps and it is not a faulty meter and you don't smell anything burning or see any black carbon tracks from sparks I would tend to suspect the meter as Mr. twinboat suggested.
Tat many amps should be doing something noticeable.
On the other hand if they are shutting down then there may be a short to find. As I said before don't freak out just start with the large red and black wires. If you have an ampprobe you can look for amp draw anywhere along the wire and where the wire goes to a junction box or breaker box.
Electricity is so unpredictable and evasive these thoughts are only places to start looking and not gospel.
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Good Luck and keep us posted please. "Q"
1999 Newmar, Mountain Aire 3768, V-10, CAI, Headers.
"Spending our kids inheritance one trip at a time"
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