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Old 08-26-2016, 07:01 PM   #43
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Inverter - Fault - No Communication

I'm an owner of a brand new Airstream Interstate at the start of a trip with my wife and we are getting this message for the first time.

I clicked the cables - nothing
I held the grey reset - nothing
I flipped the breakers - nothing
I turned off the inverter for 15 minutes - nothing
I disconnected from shore power and kept inverter off for 15 min. - nothing

Discouraged and frustrated this is happening to such an expensive coach with no resolution.

Anything I haven't done on my 2016 Airstream Grand Tour XL?

Thanks.
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Old 08-26-2016, 07:53 PM   #44
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Assuming the House Main Switch is on, Magnum states the following:

• No Comm - Remote is not receiving any information from the inverter.
Remedy: Reset the remote by disconnecting the remote communications cable from the inverter for 5 seconds, and then reconnect it (see Figure 2-3). If the fault continues, first check/replace the remote cable. This cable is 4-wire telephone cable.

It further states

What if the cable is not the issue?
• Try another remote display.
• Disconnect the remote from the Remote port and connect to the Net-
work port.
• The inverter might need servicing.
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Old 08-26-2016, 08:24 PM   #45
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Had exact same problem on my 2016 coach. It was the selenoid they installed per the 164 service bulletin. Dealer replaced selenoid but disconnected it. The selenoid airstream put in is not up to the job
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Old 08-27-2016, 04:33 AM   #46
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I just finished installing a Cole Hersee solid state relay to cure the inverter
"No Comm" problem caused by the inadequate relay installed with SB 164.
I think the relay is a good idea because I have run the battery down while watching the TV and forgot to turn the inverter off afterwards.
Someone else mentioned a smell after the SB relay was installed, I had that for a while and it went away. I think it was the flux used to solder the coil wires, you can see a spot in the picture. I cut the end off the relay to see what it looked like inside. The contacts have signs of slight arcing on them but I think the pin in the coil started binding and would not pull the contacts tight causing the heat build up. It was worth a hundred bucks and a little work to not go back to the dealer and have the same junk installed again.
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Old 08-27-2016, 01:35 PM   #47
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What is all the orange stuff? Rust?
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Old 08-27-2016, 03:59 PM   #48
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Soldering flux residue. Harmless.


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Old 08-27-2016, 07:51 PM   #49
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Quote:
Originally Posted by rmkrum View Post
Soldering flux residue. Harmless.
Why would there be flux on that spring? And washer holding it?

Flux can be corrosive so it is not harmless and should be cleaned.
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Old 08-27-2016, 08:15 PM   #50
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Cheap......cheap........cheap!!!!


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Old 08-27-2016, 08:24 PM   #51
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Magnum Fault! No Comm

Cheap stuff, just looking at the lousy contacts. But, they use flux that supposedly doesn't need cleaning. No corrosion, so it's not the flux. That looks hand soldered, so non-activated flux would be used.

Used to be a serious automated mass production manufacturing engineer. We used activated flux in a foam system on wave soldered PC boards that could literally blow green corrosion off copper, solder perfectly, then clean off totally with just hot water. Dangerous stuff, but the solder joints were always perfect. If you had to mess with it, hazmat suit, gloves, goggles, face mask, and great care not to slop it around.


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Old 08-27-2016, 09:26 PM   #52
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Solenoid definitely the problem. The airstream solenoid is underrated. Any local electrics shop can swap it out for you. Mine is going strong after upgrade from 80 amp to 200 amp.
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Old 08-28-2016, 03:45 AM   #53
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Sorry for the late reply,
Amirm, That isn't rust or flux you are seeing on the spring and contact disc. The disc is a solid copper material ? and the spring is copper coated.
The solder blog seems to be very large for such a small wire leading to the magnetic coil. I have seen contacts in much worse condition that still passed power through OK. Flux has a unique smell and that is the only thing inside that would explain the odor. I still think the pin binding in this one is the problem.
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Old 08-28-2016, 07:56 AM   #54
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Where is Solenoid? Should I just go ahead and install a 200A to get ahead of any issue?


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Old 08-28-2016, 08:23 AM   #55
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We just disconnected selenoid. Only purpose is supposedly to reduce battery drain when coach shut off. It is located by the invertor, which in my 2016 lounge is located under side seat in rear on street side
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Old 08-28-2016, 08:37 AM   #56
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Quote:
Originally Posted by coachcruiser View Post
I'm an owner of a brand new Airstream Interstate at the start of a trip with my wife and we are getting this message for the first time.

I clicked the cables - nothing
I held the grey reset - nothing
I flipped the breakers - nothing
I turned off the inverter for 15 minutes - nothing
I disconnected from shore power and kept inverter off for 15 min. - nothing

Discouraged and frustrated this is happening to such an expensive coach with no resolution.

Anything I haven't done on my 2016 Airstream Grand Tour XL?

Thanks.
Just a follow-up. First thank to the forum for providing some insights.

I forgot to mention the specific items that are not getting power due to inverter (theory): TV's 1 and 2 in front and back as well as the media outlet above drivers seat and the outlet above galley on underside next to light bank. These 4 outlets have no power to them at all; all other outlets I've tested seam to work.
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