Learn from my mistake on a number of different levels
My trailer is 30 amp. When home, I use a dog-bone to hook into a 20 amp in my garage. Doing this for 3 years. When home I will turn on the AC when hot outside and it has always worked. Last outing, we came home and I plugged it in as usual. Went shopping and when I came home the garage door would not open. The garage circuit breaker was tripped in the basement. This had never happened before the last 3 years. Reset it and things were fine. About 1 hour after I went back into the garage and everything was dark again. Reset the breaker one more time. Again, things were fine. Two days later it was tripped again. Investigating the problem reviled the hot water electrical had not been turned off when breaking down camp. So, when the AC and hot water were trying to run at the same time it was tripping the 20 amp breaker. My problem is that I have a DC only refrigerator. When not plugged into electrical, the battery runs down. By the time I found out I had no shore power the battery on the camper was down to 11 volts.
Eliminated this oversight by problem by running a 30 amp line to the garage this weekend for aground $200 for parts and no labor, just sweat.
I had no problem for 3 years. I had someone help me during teardown, which has turned into another problem again. Shortened the battery life on my trailer. Cost me $, but more peace of mind when home for these oversights as I am getting older. I am sure there will be more.
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