wanderingbob wrote:
The water and power usage might be more than a 30 amp circuit and water hose can handle . Most/many dishwashers have an electric heater in one cycle that would require that nothing else could be ran at same time . You would have to shut off air cond. and probably the voltage drop would not allow any thing else to be run at same time .
I just checked my (residential) dishwasher. The sticker lists the maximum load as 9A, with the heater taking 5.5A and the motor 2.2A. I don't personally use the heater ever, but even if I did it would not overly tax a 30A RV power connection if used with a little bit of care, and could easily coexist with the air conditioner if no other especially large loads were in use at the same time.
I don't know of any household dishwasher offhand that needs more than a 15A circuit. (I also have not made anything like a thorough survey of all the models available.)
Edit: water usage is also not excessive, particularly if one is hooked up to utilities. I think its a couple gallons or so to fill a normal dishwasher; in some cases, less water overall than handwashing. It doesn't need a super high flow, as the machine fills and then uses its pump to spray the water around, and the fill can take however long it needs until the float switch says there's enough water.
