Forum Discussion
pianotuna
Nov 07, 2016Nomad III
I still don't know what caused the Magnum to overheat to the point where it caught on fire.
I wonder what the surge of 40 amps means. Is that 40 amps @ 12 volts?
I do know it was not reversed DC polarity.
I do know it was not a short--because the catastrophic failure fuses did not blow.
That leaves a fault in the FET board. But what caused the fault after 2 years of running? I did have one instance of over heating of the fets. I did have one instance of shut down due to exceeding 125 amps of charging.
I can say that the inverter ran a lot hotter than 20 c (68 f), and that on the day it failed the case was at 37 C (98.6 f).
If I had it to do over I'd go for a 24 or 48 volt 4000 watt unit.
I wonder what the surge of 40 amps means. Is that 40 amps @ 12 volts?
I do know it was not reversed DC polarity.
I do know it was not a short--because the catastrophic failure fuses did not blow.
That leaves a fault in the FET board. But what caused the fault after 2 years of running? I did have one instance of over heating of the fets. I did have one instance of shut down due to exceeding 125 amps of charging.
I can say that the inverter ran a lot hotter than 20 c (68 f), and that on the day it failed the case was at 37 C (98.6 f).
If I had it to do over I'd go for a 24 or 48 volt 4000 watt unit.
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