Omnicare,
I concur with Paz.
All of the following appliances are controlled by a 12 VDC circuit board: Refrigerator, DSI Water Heater, Furnace, AND the Air Conditioner(s). {The flow of 120 VAC to the A/C's fan and compressor is controlled by a relay on the 12 VDC board -- and so is the 120 VAC to the Refrigerator's electric heating element! ___ In addition, most appliances need at least 10.5 VDC to operate properly.}
Normally, when plugged into shorepower, the converter (or inverter charger) provides all of the 12 volt power your equipments need. However, as your converter manufacturer states in their manual: "If the converter/charger does fail, the output voltage will either be cut in half (i.e. 6 VDC) or go to zero. This will cause your lights to be dim or not work at all. Please note that your battery will supply all DC voltage until it completely discharges." Sounds like you need a new converter. And don't forget to check your battery(s) -- since the lights went out, they may or may not recover from such a deep discharge.
The solenoid you described is probably a part of the battery disconnect system. Is your disconnect system operated by a small electric switch or by a manual switch. Willing to bet it's electric. RVs usually don't use solenoids to control 120 VAC.
Hope this helps.
__________________
Dale Lee Sumner
RVIA/RVDA Master Certified RV Service Technician
www.sumdalus.com
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