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Old 08-30-2014, 12:49 PM   #15
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The 1000 watt WFCO factory inverter in my 2014 FC 20 has a 120 volt power cord supplied which apparently could have been attached to an internal transfer switch inside the inverter. That way, when the inverter was off, power could have been supplied to the "blue label" inverter outlets by the normal grid power system.

However, if you read the WFCO manual very carefully, it indicates that the transfer switch is optional (or "if supplied" or some other wording like that). Apparently AS did not take that option, at least on my unit. The WFCO has a power cord on it, but it is not connected to anything inside the inverter itself. I took my WFCO out to see if there was an internal transfer switch, simply not connected, but the case is riveted together and I did not wish to void the warrantee by drilling it apart to see how the internal wiring is done.

So, yes the blue labeled outlets only operate on the inverter and you do have to switch things like the DVD player and TV from one outlet to another when you wish to use the inverter.

At least on my WFCO, if there is an internal transfer switch, it is not connected to anything (but they did supply a power cord... how strange). After my warrantee is up, I may take it out and drill the rivets out and see what is really in there.
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Old 09-16-2014, 11:54 AM   #16
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From WFCO site 1000w invert

An Internal 8.5 amp transfer switch is integrated into
each unit, providing power change over protection
between AC pass through (shore line or generator).
AC output voltage can be generated from a 12 volt
DC source (battery, solar, or wind turbine). A remote
control allows manual on /off of the inverter, and has
indicator lights that displays operation status.
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Old 09-16-2014, 09:00 PM   #17
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Quote:
Originally Posted by Dexterpix View Post
From WFCO site 1000w invert

An Internal 8.5 amp transfer switch is integrated into
each unit, providing power change over protection
between AC pass through (shore line or generator).
AC output voltage can be generated from a 12 volt
DC source (battery, solar, or wind turbine). A remote
control allows manual on /off of the inverter, and has
indicator lights that displays operation status.

Unfortunately, the manual which came with mine says that, but there is one of those damn * which leads you to find something like "* if equipped". Apparently Airstream did not check the box and the WFCO inverter in my rig has the power cord but no power passes through the inverter when it is off. So, the system is not activated, and the box is riveted together so I can't get inside without voiding the warrantee.
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Old 09-16-2014, 09:58 PM   #18
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Contrary to some who say they know I talked to WFCO about the airstream 600w & the 1000w inverters all units supplied to airstream have a internal transfer switch, my 2013 25fb came with 600w I hooked ac power to the power cord on the inverter and I got ac on the inverter outlets (note do not turn on the inverter) when on shore or gen, I have now up dated to wfco 1000w and it also has the internal transfer switch and it works perfect . If yours dose not you should call wfco service they will be happy to help you. I don't know where some who say it dose not have a transfer switch got there info but it is wrong! If any one is in SoCal contact me I show you that it works I will all so at balloon fiesta.
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Old 09-16-2014, 10:34 PM   #19
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Quote:
Originally Posted by Rick stream View Post
Contrary to some who say they know I talked to WFCO about the airstream 600w & the 1000w inverters all units supplied to airstream have a internal transfer switch, my 2013 25fb came with 600w I hooked ac power to the power cord on the inverter and I got ac on the inverter outlets (note do not turn on the inverter) when on shore or gen, I have now up dated to wfco 1000w and it also has the internal transfer switch and it works perfect . If yours dose not you should call wfco service they will be happy to help you. I don't know where some who say it dose not have a transfer switch got there info but it is wrong! If any one is in SoCal contact me I show you that it works I will all so at balloon fiesta.
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What is an internal transfer switch?
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Old 09-16-2014, 10:39 PM   #20
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Quote:
Originally Posted by Rick stream View Post
Contrary to some who say they know I talked to WFCO about the airstream 600w & the 1000w inverters all units supplied to airstream have a internal transfer switch, my 2013 25fb came with 600w I hooked ac power to the power cord on the inverter and I got ac on the inverter outlets (note do not turn on the inverter) when on shore or gen, I have now up dated to wfco 1000w and it also has the internal transfer switch and it works perfect . If yours dose not you should call wfco service they will be happy to help you. I don't know where some who say it dose not have a transfer switch got there info but it is wrong! If any one is in SoCal contact me I show you that it works I will all so at balloon fiesta.
If your WFCO does indeed have the internal transfer switch, then it should not make a difference if your inverter is 'on' or 'off' as it should 'know' when it is passing the 120VAC thru to the outlets and should not invert. All Magnums work this way.

The inverter light will be on if the invert button is depressed, but in the presence of shore power, the unit is not inverting, but is in charge mode (all Magnums except the 600 watt inverter only have a complete charger section as well.)
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Old 09-17-2014, 12:41 AM   #21
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Yes my inverter has a transfer switch you may understand magnums inv. But if you press the remote button on the wfco inv. it turns on the inserter it passes ac through when hooked to shore power and when on battery it converts 12vdc to 120ac how ever when you are on ac power or gen and you have it turned on the unit uses a little ac power even when not inverting and there is not need to have it on unless you are using it when you have that hooked up so there is no need to turn on the inv. Until you need it to invert & make 120ac, as far as what a transfer switch is it lets the inverter pass ac through when you are hooked to ac power but when on battery it switches to the inverter. Also as a note the wfco is not a battery charger.
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Old 09-17-2014, 08:34 AM   #22
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Quote:
Originally Posted by lewster View Post
AFAIK, the WFCO inverters that the factory uses do NOT have an internal transfer switch. This is probably why they do not connect the 120 VAC plug that I see hanging on all of these units.


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Any idea on what rationale AS uses to NOT connect the AC pass through on the inverter?
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Old 09-17-2014, 10:08 AM   #23
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Originally Posted by mefly2 View Post
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Any idea on what rationale AS uses to NOT connect the AC pass through on the inverter?
Just my opinion, but connecting the inverter's 120VAC input circuit requires another AC line be brought to the inverter's location from the breaker box. IMHO, they would rather add dedicated 'inverter' outlets along side some existing ones for off-grid use than utilize the inverter's full capabilities. Less work in assembly??????? Of course, less $$$$$$. Maybe they just ran out of space in the breaker box for a dedicated 15 amp breaker?

And based on post #21, if this is the operational routine of a WFCO inverter, then it might be a safety issue....which then brings up the question.......WHY BOTHER with an inferior product that will not allow you to use it's full capabilities? Especially when there are many other components in the market that WILL!

Think about the other anomalies that are found in new trailers: single stage battery burners disguised as power converters, no temperature compensation added to Sprinter/Interstate that use the Magnum inverter/charger, use of low quality Interstate liquid cell batteries.....................

Just how much would it take, and how much would it cost to remedy these weak spots in Airstream's product? For a manufacturer.....NOT A LOT!

After all, just how much DO you really expect from a 'premium' trailer company like Airstream?
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Old 09-17-2014, 10:28 AM   #24
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Originally Posted by lewster View Post
Think about the other anomalies that are found in new trailers: single stage battery burners disguised as power converters, no temperature compensation added to Sprinter/Interstate that use the Magnum inverter/charger, use of low quality Interstate liquid cell batteries.....................

Just how much would it take, and how much would it cost to remedy these weak spots in Airstream's product? For a manufacturer.....NOT A LOT!

After all, just how much DO you really expect from a 'premium' trailer company like Airstream?
Yes, I replaced the dumb Paralax converter/charger ($200) the original batteries with golf cart type ($200 and metal work on the box), added a decent Tri Metric battery monitor ($200), replaced the GYM's with Michelin 16" tires and wheels (about $500 after selling the old ones) and these upgrades would have cost the factory probably 1/3 of what I paid. I would have gladly swapped those improvements for the Television and Radio, subwoofer and DVD player which are things I never use.

I also added my own 200 watt panel solar system with a Blue Sky MPPT charge controller for < $600 (but my own labor). The factory one is $2700 and does include better batteries, although a poorer charge controller. It may have some battery monitor capabilities, I am not sure about that. But it is still way overpriced and is only about 100 watts of panels.

But Airstream sells all the trailers they can make. Why do more solid systems when you can sell glitter easier. 80% of owners don't know or care most likely.
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Old 09-17-2014, 02:07 PM   #25
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I replaced my converter and then sold the original on eBay for $199!
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Old 09-17-2014, 02:32 PM   #26
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"Just how much would it take, and how much would it cost to remedy these weak spots in Airstream's product? For a manufacturer.....NOT A LOT!

After all, just how much DO you really expect from a 'premium' trailer company like Airstream?"


Trouble is everyone has their own pet peeve. If electrical, then why not plumbing, tires, LP tanks, floors, furnishings, better aluminum, more rivets, air conditioner, mattress, range, frames, bumpers, finishes, all assembled by highly trained and skilled specialists and delivered sealed and bubble-wrapped on a special air suspended trailer.

Then we couldn't afford an Airstream and most would be unwilling to pay the price either. There would be no Airstream company.
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Old 09-21-2014, 04:40 PM   #27
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Quote:
Originally Posted by Rick stream View Post
Contrary to some who say they know I talked to WFCO about the airstream 600w & the 1000w inverters all units supplied to airstream have a internal transfer switch, my 2013 25fb came with 600w I hooked ac power to the power cord on the inverter and I got ac on the inverter outlets (note do not turn on the inverter) when on shore or gen, I have now up dated to wfco 1000w and it also has the internal transfer switch and it works perfect . If yours dose not you should call wfco service they will be happy to help you. I don't know where some who say it dose not have a transfer switch got there info but it is wrong! If any one is in SoCal contact me I show you that it works I will all so at balloon fiesta.
Well, since I had had mine out this summer and tried it, and found it had no apparent connection to the "internal transfer switch" I posted that it was apparently not connected. I have seen others who said the same thing, but don't have their post's available.

So, a few minutes ago, for confirmation, I plugged the external power cord on the WFCO that is the supply point for grid power into a live outlet. Like the other time, no grid power is transferred through the WFCO inverter. When I turned the inverter switch on, it did create 120 volts and inverted properly. So mine does not either have the internal transfer switch, or it is not connected. Some may have it, mine does not. The manual indicates it is an option.

Anyone is welcome to come to Idaho to confirm my observations... grin.
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Old 09-22-2014, 05:50 PM   #28
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Our observations, too ...
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