Ac’s went off

[Goldencrazy]

In the heart of hot day my ac’s stopped. Flipped breaker at post and they came back on. Quit again 15 minutes later. Powerline control said no service. Flipped circuit breaker at post and all have been runnig full tilt (3) for about 2 hrs. Initially upon resetting the power control showed i was drawing 50 to 51 amps. It moved. After things cooled a bit it showed 36-37. They were set on auto. Were my 3 units just too much demand until they had cooled things. Initially it was cool went they shut dow. We stepped away while they were running and when returned they were off. Any advice to avoid this is always useful. Sun was beating hard and the later sun was on front of coach. 2013 Itasca Elipse.

[Goldencrazy]

Thanks. House batteries are good.

[Goldencrazy]

Thanks. House batteries are good.

[rgatijnet1]

Your inverter may be on high charge if your house batteries are low and this can draw a lot of extra amps.

[Goldencrazy]

Yes. Powerline. 121volt on one line 124 is high on other but bounces 121-124. Ac increases amp draw went switched from low to auto or high. 7-8 amps per. 2 on one line and one on other. Front and rear together. Middle seperate. With 1 and 3 on auto now drawing 29 amps.

[Mr_Mark1]

A 50 amp connection has 50 amps on each leg (100 amp). If the voltage at the pole is good, we can run 80-85 amps and not effect anything.

It's when the whole park is trying to use a lot of electricity that the voltage will drop. I like to see at least 110 volts on each leg, 120-122 volts would be perfect on each leg.

Safe travels,
MM.

[rgatijnet1]

Do you have something that monitors the voltage/current on each leg of your incoming power?
I somehow doubt that you have all three AC units on one incoming 50 amp leg. I'll would guess that two may be on one leg and one may be on the other input leg.
A 50 amp pedestal circuit breaker provides 50 amps of power on each leg for a total of 100 amps.
Keep in mind that if the voltage drops just a few volts(ONLY measured when all three AC units are running) the current draw increases significantly.

[eHoefler]

Pulling 50-51 amps on a 50 amp breaker, breaker is doing it's job.

[Goldencrazy]

In central Florida. Short stop so didn’t put on sun screen and when sun swung to blast in windsheild even with inside shade down it was hot. I think cleaning is in order. Voltage was fine. Thanks for all the ideas.

[ArchHoagland]

Do you monitor the voltage? The worst thing for an air conditioner is low voltage.

I keep a plug-in voltage meter plugged into a wall socket on my coach and if it drops to 105 volts I turn off the air conditioner.

[pianotuna]

Hi,

What is the voltage when the three units are drawing 51 amps? Are two of the units on one leg? If so, leave one of them off.

[doxiemom11]

We are you that you need 3 AC's running? We are 36' and 1 AC keeps it 75 in here when it's 95 and we are sitting in the sun. We keep the windshield curtains closed and any place else that will block the sun. Vent pillows to keep the cool air in and the sun's heat out. Awnings out to keep the sun off the sides. If you are going to be in a hot climate all summer I think you need to get some sun shades in place.

[chuckftboy]

Just 3 a/c units drawing 15 amps each and your inverter using another 5 or 6 amps puts you at a critical point for that 50 amp pole breaker

[Goldencrazy]

Good idea. Will have them all cleaned soon. I don’t do ladders and roofs anymore.

[Lwiddis]

Looking at today’s weather in Madison, he should just open the windows.