Question about main breaker

[jmatthews]

Hello all,
Last weekend I went on my second trip with my new 2013 shasta revere.
We ran into an issue. I was plugged into shore power 30amp service at the CG. It was pretty hot so the air was running. I went to use the microwave to pop some popcorn and we had a black out. At first I thought the CG was at capacity and there was some sort of surge. It turns out my main 30 amp breaker tripped. This was only running the AC. The microwave should not trip the main I am thinking it should have tripped the breaker for the microwave not the main. So it is going in for service at the dealer I bought it from this Sat to test all systems and see if there is a problem with my TT. I had the CG check the power at the site to make sure it was not dropping too low or spiking. It seemed pretty constant at 116.7 using a meter.

I have read of a lot of folks having this issue but it just does not make sense that a brand new trailer you cannot not run the AC and the microwave at the same time. My old 97mallard never missed a beat when doing so. I guess I may be expecting too much but I thought it would handle at least two appliances at one time.

Oh no smell or excessive heat coming from breaker either. Just a trip and shut off.

Thanks,

[enblethen]

This is the style that I like. It checks for correct wiring and gives good readable voltage.
120 volt digital meter

[jmatthews]

They only checked at the pole with no load. I think you may be correct here I am going to get one of those testers so I can be sure I am getting what I need when plugged in.

It did not even occur to me to have them check while under load. I was more worried there was something wrong with the rig and it would cut our trip short. It ran fine the rest of the weekend with the fridge AC and lights. The next morning we had the AC fridge and coffee pot going so I think you may be on to something here.

I will have it checked for piece of mind that there is no issues with the system.


Better safe than sorry. Next trip August 14th so hopefully all will be fixed up.

[WayneAt63044]

Are the A/C & microwave bigger units on this trailer? The manuals should advise the wattage or current draw for each unit. Bear in mind there may also be other major electrical draws like the water heater, battery charging, lights. Add them up and see if you will exceed 30 amps. You might try turning off the water heater breaker and running it on propane. Switch the frig and water heater to propane when electricity is at a premium. If everybody did this it would make the electric feeds less troublesome during high heat summer days.

[enblethen]

When they checked the voltage was anything plugged in and operating?
My guess would be the voltage would drop to below 110 with AC running and converter operating for the 12 volts and charging the system Then you operate the microwave and it drops the voltage lower which increases the amperage.
I would buy one of the plug in 120 volt digital meters.
I am going to say they are not going to find anything wrong with your rig.