I'm seeing some strange behavior from my MasterVolt MassCombi inverter/charger. I have it set up to automatically start charging
anytime there is AC present from shore power
or the generator
. At the same time, the passthrough relay passes the AC through to the loads.
I'm finding that sometimes when I apply AC the device does not power on. Normally when AC is applied all the LEDs on the remote
panel light up, then it flashes a sequence to tell you what firmware rev it's running, then the charger
starts. The passthrough relay goes active right away. When it's not working properly, no LEDs come on at all on the remote
display, and I get a slow blink on the AC Present LED. If I wait long enough sometimes it will eventually come on after a minute or two.
The manual only describes the AC Present LED flashing in conjunction with other LEDs, and I don't have any others active.
My first assumption was that the AC was out of range, but my panel meter reads 116V and 60hz, so I think it's OK.
Anyone have any ideas?