Air conditioning

[helen_s]

On 6/6/2014 I posted a question about electrical outlets on a 2001 Fleetwood Discovery. Thanks everyone ,resetting the breakers on the inverter did the trick. Lots of knowledge out there..since then the air conditioning when running sheds on and off. Any suggestions. Thanks again

[rgatijnet1]

If your coach has an EMS(energy management system) this is normal. If the system detects that there is not enough power available in certain circuits, it will shed power.
Just because you are hooked to a 50 amp service that does not mean that you have all of that power available.
With your inverter, you have what is known as "pass-through" current/wattage. In other words, if you have a 2000 watt inverter, that is the MAXIMUM amount of power that can be used on your inverter circuits. That is probably why your inverter circuit breaker tripped. You were exceeding your inverter pass-through current, even tho you were well below your main circuit breaker capacity.
I have never tripped my main or even one of my separate circuit breakers but I have tripped my inverter breaker a few times.

[Golden_HVAC]

Hi,

If you are having low voltage, first thing is to switch the refrigerator to gas only - if possible. It will lower the amp draw on the RV, and thus less voltage drop across the cord, ect.

Check the power plug to shore power. If it is hot, then the campground power plug might be bad, with the brass connects inside not clamping well to the RV plugs, causing them to overheat and then the brass to weaken further.

Many campgrounds with 30 amp circuits only are typically wired with #10 wire, and it can have a larger voltage drop than a 50 amp campground. Most 50 amp campgrounds put several RV posts on one 150 amp circuit breaker fed with #1 wire. THis wire is so thick, that typically there is very low voltage drop to the RV sites, even when they are more than 100' from the transformer.

You can buy a Hughes Autoformer or other voltage booster. It will take in 105 volts and put out about 115 volts, so that the A/C units will be happy again!

Fred.

[past-MIdirector]

The system most have enough voltage/AMPS for the A/C to start or will shed. My A/C will do this if the voltage drops or I'm pulling to much and the AMPs are high! Watch what you have on at the time when it does this.