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Old 07-16-2017, 06:34 AM   #11
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I checked all breakers and none were tripped. It seems like my inverter transfer switch is not recognizing when it is receiving ac power.

Is the transfer switch something I can access and check?
On my Xantrex inverter (yours may be a different kind) the transfer switch is factory-equipped and internal to the unit when ordered that way. Otherwise, if not factory-equipped with a transfer switch it has only an AC outlet on the end to plug in the connected "load". You can see in my attached picture I have two (yellow) Romex AC lines entering my inverter, one is the AC supply from my "main" breaker panel ("line") and the other is the AC "load" going to the second (small) breaker panel to feed the microwave and the front and rear TVs.

The troubleshooting I could do if experiencing your issue would be to disconnect the two AC connections you see in my picture and metering them. On my unit one wire is labeled "load", the other wire "line". The wire labeled "line" will have AC voltage on the end coming from the coach when connected to shore power with the main panel "inverter" breaker on. The other wire labeled "load" will have AC available on the inverter end when the inverter is switched on. Since you have power to your circuits when your inverter is on that part is good. What you need to know is whether you are getting shoreline/generator AC to the "line" side of your inverter.

If you are indeed getting shoreline power into your inverter, there likely is a problem with the transfer switch or the power line connections at the inverter yourself. If no AC voltage is present coming into the inverter, you likely have a bad breaker or connection feeding that circuit. You may be able to remove the cover on the inverter where the wires enter to verify the wires are properly connected. Do so with the shoreline power disconnected and the house batteries also disconnected so there is no chance of AC power being present.

As a firefighter yourself I don't need to caution you on the dangers of AC shocks. But for any others monitoring this thread - if you are unfamiliar or uncomfortable working with AC power realize it can easily kill you. Engage a qualified technician or electrician to troubleshoot AC issues since diagnosing problems frequently requires the circuits to be energized for testing. So endeth my sermon!

The RV house looks like it will be great, will have to look into a Florida visit in the future!
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Old 07-16-2017, 07:13 AM   #12
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I checked all breakers and none were tripped.
Did you turn them off and on? They can trip and not look like they did.
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Old 07-16-2017, 07:47 AM   #13
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I have 110V going into inverter. Coming out I had 110 with inverter turned on and 0 V with inverter off. The output is labeled "pure sign wave output"'.

The breaker on the inside breaker panel does kill the outlets on inverter circuit when turned off.

So I am thinking internal transfer switch is not working. I will call the company in the morning.

Thanks for walking me through this.

PS... Rob. We have a great county park campground (Markham Park, Broward County) 5 minutes from the house. I can even arrange a ride along for you with MDFR. Just think Florida sunshine in winter and we can get all my mods done. Just need to make reservations soon
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Old 07-16-2017, 08:22 AM   #14
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Your inverter is indeed different and the 110-volt AC connections appear inaccessible and original from the factory, unlike mine where the Romex enters my inverter and has screw-down connection points inside the cover. Too bad, it probably is not field-repairable.

We tried!

Will talk to DW about a Florida visit, she may be very much in favor of a winter trip!
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Old 07-17-2017, 10:19 AM   #15
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After speaking to a very helpful tech at Magnum-Dimensions, we were able to change modes on the inverter. The issue I was having was it was in the mode that allows you to kill power to the circuit by pressing the power button. I cannot think of a time I would need that but still.

It is now in the automatic mode where the power button doesn't change anything and you can tell which power source is being used by the color of the status light.

Thanks for the help yesterday.
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Old 07-17-2017, 10:51 AM   #16
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Glad it was easy to resolve. Your experience, while frustrating, may help someone else with a similar inverter. That is what is great about this forum, mostly helping other owners and not much bashing!
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Old 07-17-2017, 11:35 AM   #17
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I wish I could grant that wish Rob. There are so many cool mods you have done and would love to have you mentor me on RV 101 and 102. I may need to coax you to come to Florida when you are buried in snow this winter.


We leave are leaving for three months a week from Thursday and I am scrambling to get every conceivable thing done. Adding to this is the brutally ridiculous heat down here. I am dripping before I make it to the RV.

On a positive note, the RV house is almost done and will be inhabitable on our return. That will make it much more pleasant to work on in the shade.
That's a great looking RV-House! I just finished mine. We made it big enough for the in-laws and, hopefully some room for a few others.
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Old 07-17-2017, 12:29 PM   #18
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That's a great looking RV-House! I just finished mine. We made it big enough for the in-laws and, hopefully some room for a few others.
OHHHH MY! I want one of these too... VERY nice.
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Old 07-17-2017, 12:30 PM   #19
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Glad it was easy to resolve. Your experience, while frustrating, may help someone else with a similar inverter. That is what is great about this forum, mostly helping other owners and not much bashing!
Thanks Rob. Yes, this forum is an incredible asset.
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Old 07-17-2017, 12:31 PM   #20
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Your inverter is indeed different and the 110-volt AC connections appear inaccessible and original from the factory, unlike mine where the Romex enters my inverter and has screw-down connection points inside the cover. Too bad, it probably is not field-repairable.

We tried!

Will talk to DW about a Florida visit, she may be very much in favor of a winter trip!
We are planning to be in the Tampa Bay area for Christmas / New-Years... and then heading up the eastern coastal states in January...
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