RV inverter, not on shore power, and batteries read 13.4 volts with multimeter. Reading directly on AC Out terminals ov inverter is 125 volts. Reading for circuit breaker for inverter in breaker/fuse box also measures 125 volts. According to Alliance RV only the residential refrigerator is connected to the inverter. However both TVs appear to be and at least one GFCI outlet on the kitchen island is also. That oulet does not hold reset nor does the light come on. Device itself functions normally when swapping it with another GFCI receptacle on another circuit. At a loss on how to systematically search from one device to another on the circuit the refrig is in to try and find where the trouble first shows up
