Ac question

[campermama]

My 50 amp rv is on a 50 to 15 amp adapter, to a heavy duty extension cord that is plugged into a 20 amp outlet.
Only thing running on electric in rv is the tv.

Is it ok to run just the ac Fan?? Again, just the fan is running not cooling.

Thanks!!

[AJR]

OP, I just connected my camper with the heavy camping cables to a 20A outlet so my kids can run the A/C when they get here for the 4th. Been doing that for years. They know just one heavy load at a time. No A/C and microwave at the same time kind of thing.

The fact nothing is heating up for you cable wise is great.

[CA_Traveler]

108V is good. However if there are other loads on that plug the voltage will be lower and perhaps to low.

Others have discovered this when the CB tripped.

Comment: Never think that a 15A plug is adequate without checking. I have 8 plugs on a outside and garage circuit. The circuit is 270' of 14 ga wire on a 15A CB. My saw won't cut a 2x4 on that circuit but the circuit is 100% to code.

[time2roll]

I would let it run without worry at 108.0. Just keep an eye on the voltage in the afternoon.

[campermama]

I ran it for a while and kept checking the voltage, it was hovering from mid to high 108.
Adapter and cord not even warm.

Hope this is ok to run it. Thanks guys!

[MFL]

pianotuna wrote:
campermama,

Check the voltage after the unit has been running for an hour, or better yet leave a Kill-a-Watt unit plugged in.

[pianotuna]

campermama,

Check the voltage after the unit has been running for an hour, or better yet leave a Kill-a-Watt unit plugged in.

[time2roll]

Yes 110v in the RV is good to go. Check the adapter for heat in 1 hour. Monitor voltage especially late in the afternoon. 103 to 107 is time to shut down. Then go again 1 hour after sundown.

[campermama]

Ok turn on ac, nothing else running, getting 110 when checked an outlet with volt meter, so I should be ok to run it??

[CA_Traveler]

Lynnmor wrote:
"heavy duty extension cord" tells us nothing, it is the wire size that matters.

X2 For me it's 10 gauge which are less available and more expensive. Plus I don't care for copper coated aluminum wire.

[Lynnmor]

"heavy duty extension cord" tells us nothing, it is the wire size that matters.

[KD4UPL]

I've run my AC unit a lot when using a 30 to 15 adapter and plugged into a 20A circuit. Air conditioning unit, refrigerator on AC, and the converter at the same time never caused a problem. The AC unit pulled about 7 amps running, ref was about 3 amps, converter varies but never that much.

[wildtoad]

I predict you will melt the 15 amp adapter if you try to run the AC. You have more power available (20) than the adapter is is designed for, you have a power consumer (RV) that can draw more than adapter is designed for. At a minimum, get an adapter and extension cord that meets or exceeds the 20 amp source.

But if you run just the fan you should be fine.

[cavie]

You can run the full A/C. and the converter. everything else off.

[time2roll]

Yes you are fine to run the fan. I assume the water and fridge are on propane and the MW stays off. Converter draws very little after the batteries are charged.