I run the A/C and WH at same time. But you have to have a real good 120V 30Amp conn.
You can have 30 Amp and low voltage which will cause breakers heat up and trip.
Tom & Bonnie
Crossville, TN.
Aspect 29H 2008
Class C passed Class A owner
Pontiac G6 There is NO such Thing as a B+
The water heater uses so little propane, it is just easier to go that way. However, unless they both cycled on at the same instant, and they were the only loads, the breaker should not trip. Something that is often forgotten, however, is that the battery charger pulls a pretty good load until it goes to float. You might also carefully check to see what kind of overhead there is in the system. Alarm clocks, sensors, lights, etc.
Jerry and Katie
More than 20 great years motorhoming and still loving it...
2004 DSDP 3810 (more than I needed...less than I wanted)
2004 Trailblazer (too heavy but well worth dragging)
I have ran the AC and water heater on the electric side on my last 2 TT with no issues. The one thing I was told is to ensure my power cord is totally uncoiled from the TT (my cord feeds from the outside back wall and is not detachable) to shore power and not overlapping anywhere. I have no idea if that matters but have always followed that rule?
"Thirty amps is thirty amps and one cannot get more than that without blowing a breaker. The following tells you the typical amperage draw of the appliances in a RV:
Convection Oven/Microwave The one in most Class C's is rated at 13 amps. However, they can pull 19 amps in the high power-convection mode.
Air Conditioner 12.5 amps (18 amps on startup)
Electric Water Heater 10 amps
Refrigerator 6 amps
Coffee maker - 8.3 amps
Converter - 8 amps
Hair dryer - 9 to 12 amps
Microwave - 13 amps
TV - 1.5 amps
Toaster - 8 to 10 amps
VCR - 2 amps
Electric skillet- 6 to 12 amps
Notice the 6 amps that the refrigerator draws. In my 30 amp coach, I have to put the refrigerator on gas to run the ac and the microwave at the same time (12.+13+6=31.5. In Texas, there is an old saying that, "you can squeeze juice out of a turnip." There is a better saying, but I would get kicked off the forum if I posted it. .))
Tom and Judith and Yappy Schnauzer Sable
2006 Coach House Platinum 272
Saturn Vue Tow Car
I always appreciate the education that I get on this board. When running the AC I'll use gas for the water heater, I should have figured that out since there is a switch for electric/gas on the panel for the WH....
Thanks as always for the help..
Jim
2007 29' Maverick 292 DS
A 12 yr. old long haired Doxie, "Digger"..
I beg to differ about the AC current draw of the a 'typical' RV absorption refrigerator. A 6 cubic-footer is pretty typical. My former Dometic used 2.8 amps (at 120 volts), and the current one uses 2.6 amps. The Norcold spec. sheets say 3 amps for their 6-footers.
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