Lost all AC power

jmoser1947 · 07-06-2019, 02:29 PM

Lost all AC power-- DC power works- All fuses seem ok- no breakers tripped. Ideas?

A32Deuce · 07-06-2019, 03:28 PM

Well, if we knew what type rv you had, it could help someone to help.

**bikendan** · 07-06-2019, 03:42 PM

Quote:

Originally Posted by A32Deuce

Well, if we knew what type rv you had, it could help someone to help.

The OP posted this in the Sunseeker Motorhome sub-forum.

emm-dee · 07-06-2019, 04:08 PM

Quote:

Originally Posted by jmoser1947

Lost all AC power-- DC power works- All fuses seem ok- no breakers tripped. Ideas?

If you have a late model Sunseeker with an Onan generator there’s a possibility of a stuck transfer relay. Start the generator and if you have power then you’ve found the problem. Those relays are notorious for attracting dirt. It’s an easy fix.

And, if you do get power from the generator when you shut it down the relay will self-repair itself. But, it will happen again.

dward51 · 07-06-2019, 04:20 PM

Do you have a EMS, either plug in or built in? If there is a problem with the quality of power, the EMS will shut down the AC to protect the RV components.

Also if that is not it, I would flip all the breakers "off" and then back "on". Sometimes when one flips it does not look like it's tripped. For the entire RV to be out, it would have to be the Master breaker or an EMS to affect everything though.

It is also not impossible for an EMS to fail. Did you have any lightning since it last worked? Does not have to be a direct hit to kill an electrical device and the EMS is made to go before the trailer components. If it's a Progressive Industries EMS, they have a lifetime warranty and they should swap it out.

Or like was previously posted if you have a generator, it could be the transfer switch relay stuck.

There are only a few things that would affect all AC power being out. It will just about have to be somewhere between the power source at the pedestal and the breaker box in the main feed (from shore power or the generator if you have one).

clr · 07-06-2019, 04:54 PM

I would start at the pedestal and make sure you have power there before you start tearing the camper apart. It may be that the whole campground is out or you may have tripped the breaker for your pedestal only. If you have power at the pedestal then start working back toward the camper.

Ned · 07-06-2019, 05:30 PM

There are also breakers on the generator that should be checked. I've had then trip. Take the cover off the generator and the breakers are by the start switch.

A32Deuce · 07-06-2019, 10:12 PM

Quote:

Originally Posted by bikendan

The OP posted this in the Sunseeker Motorhome sub-forum.

On tapatalk it came up as lost all power, that's all! Did not come up as SunSeeker. Sorry!

**Mr. Dan** · 07-06-2019, 10:38 PM

Quote:

Originally Posted by A32Deuce

On tapatalk it came up as lost all power, that's all! Did not come up as SunSeeker. Sorry!

In the thread list, it shows Sunseeker underneath the post.

A32Deuce · 07-07-2019, 07:14 AM

Quote:

Originally Posted by Mr. Dan

In the thread list, it shows Sunseeker underneath the post.

Not on the first post I saw and answered to. It was under general. Later post I saw sunseeker! Sorry!

jmoser1947 · 07-07-2019, 02:16 PM

Thanks for the suggestions, the RV is a 2015 Sunseeker, class C - 2860.

Gumpster808 · 07-07-2019, 02:20 PM

I had a strange power issue with our Forester and it turned out I had hit the plug from the for the converter and unplugged it.

jmoser1947 · 07-07-2019, 02:24 PM

I will give this a try. Thanks

5picker · 07-07-2019, 04:07 PM

You have to start with the basics.

Is there power where you are plugged in?

Do you have a multimeter and know how to use it?

A statement like "Lost all power" could have 27 ways to Sunday of things that could cause it.
Until we have more information and know what you have checked/not checked, we are all simply guessing.

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