Appreciate the response.
The previous owner is a high voltage electrical engineer and he installed a RENOGY Model No. RN1000-12V-C inverter and solar panels.
The ionizer was plugged into an outlet in the motorhome. It didn't trip a breaker, or blow a fuse. All fuses are good, and I have reset the breakers. Now the GFCI plug in the bathroom is tripped and won't reset. I replaced this same outlet just last year.