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09-23-2020, 04:21 AM
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#21
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3 Rivet Member
2016 Interstate Grand Tour Ext
Auburn
, Georgia
Join Date: May 2016
Posts: 159
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https://www.airforums.com/forums/f24...to_threadtools
Above link is the discussion about the solenoid and what a cheap piece of junk it is. It would work intermittently and show a no connection error. I removed mine because it smelled like it was going to cause a fire from over heating. It is easy to remove the two cables and use a bolt and nut to connect them together. Insulate the connection and you should have no more trouble. The magnum will charge the batteries with the main switch in the off or on posistion now. You will have to remember the turn off the inverter when not in use to avoid excessive battery drain.
Good Luck !
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09-23-2020, 04:48 AM
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#22
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3 Rivet Member
Libertyville
, Illinois
Join Date: Jun 2018
Posts: 146
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Susan,
You can check to see if the selenoid is your problem by simply connecting both red wires to the same terminal on the selenoid. This will bypass it.
I had a bad selenoid but it gave me a “ no com” fault on the magnum display. As I recall you were not seeing this fault
Do worry, you’ll figure it out
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09-23-2020, 04:50 AM
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#23
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3 Rivet Member
Libertyville
, Illinois
Join Date: Jun 2018
Posts: 146
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Quote:
Originally Posted by Schmitte
Susan,
You can check to see if the selenoid is your problem by simply connecting both red wires to the same terminal on the selenoid. This will bypass it.
I had a bad selenoid but it gave me a “ no com” fault on the magnum display. As I recall you were not seeing this fault
Do worry, you’ll figure it out
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Don’t worry! [emoji3]
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09-23-2020, 06:04 AM
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#24
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3 Rivet Member
Currently Looking...
2016 Interstate Grand Tour Ext
Traverse City
, Michigan
Join Date: Mar 2018
Posts: 214
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Quote:
Originally Posted by GETRIDAONE
https://www.airforums.com/forums/f24...to_threadtools
Above link is the discussion about the solenoid and what a cheap piece of junk it is. It would work intermittently and show a no connection error. I removed mine because it smelled like it was going to cause a fire from over heating. It is easy to remove the two cables and use a bolt and nut to connect them together. Insulate the connection and you should have no more trouble. The magnum will charge the batteries with the main switch in the off or on posistion now. You will have to remember the turn off the inverter when not in use to avoid excessive battery drain.
Good Luck !
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Magic1820, start looking at around post #100. Good visual pictures for what you need to work on. Remember to disconnect your batteries first and sounds like you can tie the two leads together as a simple solution.
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09-24-2020, 09:19 PM
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#25
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Rivet Master
2024 Interstate 19
Fulton
, Maryland
Join Date: May 2010
Posts: 3,872
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Quote:
Originally Posted by Schmitte
Susan,
You can check to see if the selenoid is your problem by simply connecting both red wires to the same terminal on the selenoid. This will bypass it.
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This is good advice and an easy way to determine is the SB164 solenoid is causing the problem.
__________________
- - Mike
--------------------------
2024 Airstream Interstate 19e AWD
Previous: 2013 Airstream Interstate 3500 Ext Lounge
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09-24-2020, 09:36 PM
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#26
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Contributing Member
2018 Interstate Grand Tour Ext
Austin (Hays County)
, Texas
Join Date: Jun 2002
Posts: 7,164
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On my former 2014.5 AI, I replaced the solenoid with a heavy-duty battery switch.
__________________
John W. Irwin
2018 Interstate GT, "Sabre-Dog V"
WBCCI #9632
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09-25-2020, 04:03 AM
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#27
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3 Rivet Member
Currently Looking...
2016 Interstate Grand Tour Ext
Traverse City
, Michigan
Join Date: Mar 2018
Posts: 214
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Quote:
Originally Posted by Pahaska
On my former 2014.5 AI, I replaced the solenoid with a heavy-duty battery switch.
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Yet another switch to add.
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09-26-2020, 09:41 AM
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#28
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1 Rivet Member
2015 Interstate Grand Tour
Rancho Santa Fe
, California
Join Date: Aug 2020
Posts: 8
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Those posts have been VERY helpful.
I bypassed the solenoid SB 164 and for the past two days everything is functioning.
I will install a switch in its place in the next few days.
Thanks to everyone on this forum
This is starting to be fun.
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09-26-2020, 07:39 PM
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#29
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Engineer
Airstream - Other
2016 Interstate Grand Tour Ext
SENATOBIA
, Mississippi
Join Date: May 2019
Posts: 33
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2015 Grand Tour electrical issues
I also had the corrosion problem with the solar connector on the roof of a 2016 interstate grand tour. One of the lugs corroded and broke off.
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11-18-2021, 05:35 AM
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#30
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New Member
2015 Interstate Ext. Coach
Atwater
, OH
Join Date: Nov 2021
Posts: 1
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No DC in Coach or to engine
I have the same issue with my Interstate, but with the additional issue of no DC to the engine which prevents me to sart the vehicle. Does anyone know if replacing the Magnum Inverter would also solve the engine problem, or would that be something else entirely?
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11-18-2021, 07:03 AM
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#31
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Contributing Member
2018 Interstate Grand Tour Ext
Austin (Hays County)
, Texas
Join Date: Jun 2002
Posts: 7,164
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Quote:
Originally Posted by fredward
I have the same issue with my Interstate, but with the additional issue of no DC to the engine which prevents me to start the vehicle. Does anyone know if replacing the Magnum Inverter would also solve the engine problem, or would that be something else entirely?
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The Magnum inverter has nothing to do with the chassis (start) battery except to charge that battery through the battery manager if required when the coach is either plugged in externally or the generator is running.
You may have a bad battery or there may be a phantom draw from the audio/nav system pulling the battery down. Make sure that the start battery disconnect by the accelerator pedal is clean and securely plugged in.
__________________
John W. Irwin
2018 Interstate GT, "Sabre-Dog V"
WBCCI #9632
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