Ray
Glad to hear that you are finally getting the coach going. I think that even with fully functioning AC units, 100-105 degree temps in the summer in the south are a lot for three AC units to handle. You should probably consider the purchase of a high quality shade system for the front and front/side windows (door, passenger, toll). There are a number available. These systems keep much of the solar energy outside of the coach. I just purchased one of the more expensive, but in my opinion, well worth the money, shade systems from MagneShade. There are a number of good shade threads here on iRV2 in the past couple of months. You want something easy to install and remove.
Living in Louisiana, I have found that camping in Galveston or Gulf Coast areas in the dead of summer to be a decision that tests all your equipment to the max. I have adopted the policy of visiting coastal and very high temp areas in the shoulder seasons and try to avoid the middle of the blistering heat of the summer. Not always possible, but I try to do it if I can.
The high temps in your breakers has been reported by others. FreshAir had some breakers melt into their positions and discussed it here on the forum. It is probably a combination of high or low line voltage and the temperatures induced from outside direct sun (the sun heating the outside area of the coach directly behind the circuit breaker box). You also should consider purchase and installation of a Progressive EMS HW50C power management system. The HW50C looks at a lot of power issues such as incoming power voltage from the "city" mains, over-voltage, surges, brown-outs etc, and if it sees any problems with the line power, takes the coach "off-line" until that situation is corrected. It has a read out that tells you what the error is so it quickly narrows down the problem. Mine is hard wired into the system so it monitors both the generator power and the city power and examines either one for proper condition. I closely examine the error codes when the coach is first plugged into the power pole and the Progressive will quickly tell you if there are problems. Brown-outs and low voltage conditions are not uncommon in older or poorly wired RV parks. If it goes off line, that doesn't help you with AC (or anything else), but it alerts you quickly to problems and you can either fire up the generator or also go up to the main office and report the problem and maybe move to a different pad. Low voltage can also cause excessive current draw by the air conditioners and that could be one reason the circuit breakers were very hot.
Just some ideas. Hope your new first trip is uneventful. Good luck..
Gary
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Gary and Dee, Zowie and Bowie (traveling cat sibs)
2019 Cornerstone 45B, X15-605hp, Imperial, Spartan K3,
2013 Honda CR-V toad, Demco Excali-Bar II,
Demco Baseplate, Demco Toad Light system, 73 de W5FI
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