Tips Microwave vs power source question

[Sefus]

So in both my new Travel Trailer and my parents (new to them, and only a couple years old) 5th wheel, the microwaves only will power up when power is coming from a generator, not while plugged into shore power. Anyone want to give me the run down on that one? Thanks!

 

[Publius]

All campers have a power supply box and this box has electro magnetic relays that pull in when plugged into 120 Volt shore power. So the power supply box redistributes power away from the 12 volt battery (disconnect the battery) and supplies the onboard appliances that run off of 12 Volt DC with 12 Volt DC and at the same time the power supply box will charge the onboard 12 volt batteries. Now with all this going on the supply box will also run 120 volt AC to all the outlets and appliances the run on 120 volt AC only like the Microwave and the roof mounted air-conditioner and even allow you to run the refrigerator off of 120 volt so you don't use all your LP gas (the fridge will really run a very long time on 20 pounds of LP gas). There I hope that helps.

 

[Sefus]

so just unplug the battery when hooking up to shore power if I want to microwave. Thanks!

-Newbie to RVs DC and all things not a pencil sharpened by a rock.

 

[Publius]

so just unplug the battery when hooking up to shore power if I want to microwave. Thanks!

-Newbie to RVs DC and all things not a pencil sharpened by a rock.

Nope just leave it be and the Power Supply box will Auto-Magically take care of everything when you plug it into 120 Volt AC shore power or generator.

 

[Sportsman]

Except... in my last 5er, there was a 50 amp cable & plug in the outside power compartment for shore power. When I plugged into shore power, I had to flip a switch that was on the power distribution panel located inside the trailer to switch the 120 VAC circuits from the built-in generator to the shore power cable. It was clearly marked with "Generator-Shore Power", but I've seen some that weren't well marked. It looked like a common 30 amp circuit breaker otherwise.

On my Winnebago, there was a relay that automagically switched it over for me.

~Sportsman

 

[Sportsman]

Don't you just love it when someone asks a question, gets several answers and suggestions, and you never hear if any of them were appropriate or helped? Did they solve the problem?


~Sportsman