Turn off all other breakers not supplying the receptacle feeding the hair dryer or heater. Does the breaker still trip? If not, turn on one breaker at a time and find out which one trips the inverter's breaker. Now find out what that one breaker feed and check into this apparatus.
Mike, RVIA & RVSA Certified Master RV Technician
Amy, Dr. Assistant - Roxie & Mei Ling, four legs each
2000 Gulf Stream Scenic Cruiser 450 hp & 1330# torque
06 Saturn Vue, 06 Chevy Z71 4x4 & 2014 Corvette Z51 M7