New trailer

[Scotdark]

My furnace , thermostat, fridge, and co sensor stopped working... Even when plugged into shore power... Everything else works in trailer... Next time I went to trailer everything worked again... Any ideas?? It's like the 12v supply to fridge furnace cut out but somehow reset itself... I am worried it might be an intermittent problem

[TWP723]

Are you using a EMS/Surge protector?

[Scotdark]

Everything is stock in my trailer so if one is built in ... Then I guess I am... But I am unsure what one even is.. I am new to this to stuff, sorry

[Crabman]

It could be a loose wire in the converter/breaker box which has been known to occur. Or a bad/worn connection on the pedastal you are plugged into. Or.....