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Old 07-07-2012, 07:33 AM   #1
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93 degrees & Airstream not getting shore power.

My wife plugged in a new waffle iron (and microwave and ac) and POOF went the power. It's 93 degrees outside we need power.

The breaker on the site pole is working.

The light on my shore power cord indicates power is coming from the grid to the trailer.

I am unaware of any GFCI breakers being tripped.

The breakers inside are all on (including two extras installed with AM Solar system).

The fuses are are all in tact.

Everything will work through my inverter via DC.

Unfortunately, I can't blow cold air using my DC and need shore power ASAP.

Any ideas on what is preventing my trailer from getting shore power?
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Old 07-07-2012, 07:59 AM   #2
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I would double check the breakers inside by switching them off and then back on.
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Old 07-07-2012, 08:03 AM   #3
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Quote:
Originally Posted by RLS
I would double check the breakers inside by switching them off and then back on.
Thanks ... I keep hoping i am missing the obvious. I've now flipped every breaker inside and out a few times now. Feeling perplexed. I'm wondering if the "transfer box" is bad ... the thing that keeps the inverter from back feeding the shore power. Unfortunately, I'm no electrician and don't have tools handy to check wires.
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Old 07-07-2012, 08:06 AM   #4
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yep I would do that too - and unplug the two appliances.

My breaker which has the reset switch on it - used to trip and you could not tell with out flipping back and forth.
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Old 07-07-2012, 08:17 AM   #5
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Check the two 40 amp automotive style fuses in your converter panel. They will be orange-ish in color, and it may be possible they have blown.
If that is not the problem, you will need a little electrical expertise to keep from getting electrocuted. Remove the converter assembly and check to make sure you are getting 120 volts to it. The converter is also the breaker panel for 120 volt stuff. Use a volt meter to check to make sure you have power from the shore feed to the converter. If you do, then check the connections on the converter/breaker panel. If not, remove the power plug from the side of the trailer, and check to make sure one of the wires on the back side of it hasn't burned off or come loose and fallen off.
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Old 07-07-2012, 08:21 AM   #6
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Sorry, I can not be of more help. I know I have already blown the main plug. Does the end of the plug look damaged? burned? Is it possible to unplug the inverter.
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Old 07-07-2012, 08:22 AM   #7
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Sorry, I can not be of more help. I know I have already blown the main plug. Does the end of the plug look damaged? burned? Is it possible to unplug the inverter.
He really can't "unplug" the converter, but he can carefully remove it from where it is installed, and check it for voltages.
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Old 07-07-2012, 08:23 AM   #8
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Quote:
Originally Posted by GT1963
yep I would do that too - and unplug the two appliances.

My breaker which has the reset switch on it - used to trip and you could not tell with out flipping back and forth.
Ok, all appliances are off and unplugged. Everything I can turn off is off. I turned off all breakers, let them rest a few minutes, and back on ... no luck.

It appears that somewhere between shore power and the inverter, I'm getting cutoff. Maybe I now have a bad breaker or relay.

Here's a picture of my setup ... I think my issue might be in the black box.
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Old 07-07-2012, 08:29 AM   #9
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Quote:
Originally Posted by overlander63
Check the two 40 amp automotive style fuses in your converter panel. They will be orange-ish in color, and it may be possible they have blown.
If that is not the problem, you will need a little electrical expertise to keep from getting electrocuted. Remove the converter assembly and check to make sure you are getting 120 volts to it. The converter is also the breaker panel for 120 volt stuff. Use a volt meter to check to make sure you have power from the shore feed to the converter. If you do, then check the connections on the converter/breaker panel. If not, remove the power plug from the side of the trailer, and check to make sure one of the wires on the back side of it hasn't burned off or come loose and fallen off.
My fuses appear good. I think my converter is on the out side of my inverter ... Everything is getting power when i turn on my inverter. Sounds like I may need to get some electrically inclined help over here for checking to see where/if shore power is coming to ... I might can check the plug. Thanks for the ideas ... whew it's hot.
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Old 07-07-2012, 08:30 AM   #10
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Quote:
Originally Posted by RLS
Sorry, I can not be of more help. I know I have already blown the main plug. Does the end of the plug look damaged? burned? Is it possible to unplug the inverter.
Plug ends look good. I can power off the inverter (effectively bypassing it) but cannot unplug it or otherwise bypass it.
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Old 07-07-2012, 09:42 AM   #11
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Unfortunately, there is no help available on this HOT holiday weekend in Orlando. Wondering if the "relay" in my Magnum 2012 inverter is bad ... I've had issues with it since the install.
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Old 07-07-2012, 10:19 AM   #12
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THere have been several reports of failed "ATS" switches. Especially in new trailers.
The ATS is a relay switch that transfers your load inside to either the shore power plug on the street side, or the gennie plug on the front. When the ATS blows, you might not be able to get any power until you replace it, or wire around it.

Schematic

Shore Power----->Power Inlet A or B ----->ATS--->Distribution box.
Try connecting the shore power to the front inlet.
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Old 07-07-2012, 10:31 AM   #13
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Quote:
Originally Posted by redwoodguy
THere have been several reports of failed "ATS" switches. Especially in new trailers.
The ATS is a relay switch that transfers your load inside to either the shore power plug on the street side, or the gennie plug on the front. When the ATS blows, you might not be able to get any power until you replace it, or wire around it.

Schematic

Shore Power----->Power Inlet A or B ----->ATS--->Distribution box.
Try connecting the shore power to the front inlet.
Mine is a 2004. I only have one plug (I don't have a gennie plug), I assume I don't have an bad ATS switch?? Thanks
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Old 07-07-2012, 11:03 AM   #14
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Mine is a 2004. I only have one plug (I don't have a gennie plug), I assume I don't have an bad ATS switch?? Thanks
I see. Let me review the posts again and see if I can think of anything else. Sorry to hear of your trouble! I hope someone with better knowledge responds. Also, I wonder if this should be in the "General Repairs" section to get more exposure?
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