Magnum MS4024 Lost Its Mind
We have a customer with a MS4024 (not AE or PAE) that sat powered down all winter. When they powered it up it never worked.
We noted on the ME-ARC the following fault codes repeated, 9 in total: Overcurrent and Overload. It would not even try to invert. No load connected to the outputs at any time.
After repeated power cycles, fault codes, etc. we got it to try to come on with the 15 second press. Then it began throwing faults for Internal Bridge and High Battery. Interesting to note that on all the faults except High Battery it logged the actual battery voltage but on the HB fault it logged 40.3V which was in error because I could see battery voltage the whole time and it was always near 30, never higher.
So in my mind this fault could go 2 ways, either the main brain has lost its mind or there are issues with the power board, any advice from someone who has repaired these before?