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I am wondering if a capacitor exploded? Did you check the circuit breakers on the genset? This may take some time to sort out. And most of the time you can't run both A/Cs on 30 amps. Many older Bounders won't let you run both unless you are on the genset. Is this coach new to you by chance? Get back to me with this and I can help you sort this out............all follow ups are included in our fee.
That sounds like the governor spring assy.............and it won't run without it. That might account for the large "bang" you heard. Did you check the circuit breakers on the genset? And the rest seems like it might be a result of the genset, but the problem is surfacing at the transfer switch and I would test that once you get hooked up to a 50 amp supply again. With a 30 amp hookup, you are only going to run one A/C. YOu might need to check the reset on the inverter/charger as those circuits run through there. Hard to tell without some testing what might be damaged.
Possibly...........and the load shed unit which is probably made by Intellitec may have been damaged. I have had several questions today with the same issue and that turned out to be the problem. Those both were on 50 amp setups however.........but, they work the same way. You need to go and check out the A/C that isn't running by beginning with the breaker and following up to the unit at the ceiling and see if you have good AC power there. Then we can check out the controls. Those other circuits work through the inverter...........but, not the A/C. Check the outputs there and follow them as well. A small digital multimeter is best for this. It may take some time and it may be more than one issue here.
Did you check out the inverter to see if that needed to be reset? Make and model? And I don't think that the unit under the hood controls the Intellitec controller..........not at least any I have seen. Those work off just a 12 VDC fuse and usually from the main load center..............or is that what you are referring to here? There may be another Intellitec product under the hood that controls the batteries and some of the other systems.
Some are made by RV Custom Products as well. If you can give me the part number off that I can check my manuals tomorrow and see what I can find. Those are at my shop, but I will be going there in the a.m.
Were you able to locate any of those part numbers for me?