all breakers blowing

Breakers don't "blow" they trip. Maybe it is the fuses?

Either way there is an overcurrent condition. Although the breakers are also affected by heat so possibly a poor connection such as a corroded bus.

Probably need an electrician to do a physical inspection.

The breaker for the air conditioner was replaced in Feb of 2023.

This new issue was noticed on 2023 07 10 (Monday), however the RV was not in use from April until last week.

Voltage under load (kill-a-watt meter) is 114.

It started as the main breaker in the 5th wheel blowing, after more than an hour with the air conditioner, water heater, fridge and an oxygen concentrator were in use. There was no problem last summer with the main breaker blowing under the same loads.

Given the ambient temperature is 105, the roof air runs constantly.

Apparently it has now progressed to *all* breakers in the RV blowing.


It is a 50 amp RV.

The GFC breaker tripped on my TT and reset button would not depress so I had to remove the cover and then reset the breaker. However, when I stuffed the wires back into the receptable and replaced the cover by force then this tightly packed configuration caused the breaker to trip again. Receptable simply to small for all the wires.

By leaving the wires outside of the receptable then all was good to go. This occurred in the bathroom next to sink and close to water source.

I was in process of selling the trailer anyway and so let the dealer solve this problem. Cheers from The Hot Zone.

Need more information.
Is your friend talking in the rig or shore power breakers/
Is his rig 30 or 50 amp?
One possibility is an open neutral.

pianotuna wrote:
Hi,

Asking for a friend.

What would cause * all * the breakers to blow?

This is for someone in Florida in a 5th wheel.

Which "all breakers"? Can't imagine a scenario where the main breaker survives and all the other breakers in the box trip.