12v off & on flagstaff 825d 2004
I am new to the forum. Recently purchased a 2004 hardtop tent trailer with air, lights, fan etc. The 12 volt system works intermittently. 120V works always. plug trailer 30 amp cord into 30/15 adapter then extension cord into 15 amp hydro. Fridge works fine on 120V. No battery installed
Last weekend, 12V would only work when AC cooling. when it cycled off to fan, all 12V would cut out (lights, gas detector). Fuses all look good.
earlier in driveway plugs into house hydro thru adapter, no fridge or air, 12v sometimes works, sometimes not. It also will work, then cycle off for a few minutes, then come back on, then off....
Another time this summer, plugged directly into 30amp outlet, none of 12V worked
Any suggestions. Thanks