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Old 02-22-2024, 09:35 AM   #1
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2019 27' Globetrotter
CARY , NC
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Cleaning 7Way Plug

Hey Everybody,

We were in the desert of California (Borrego Springs) for a few months and I have noticed a build up of sand/crud on my 7Way plug on the camper. I bought a can of QD Electric contact cleaner. I also have Corrosion X. Which is best to use, I see competing opinions. To be clear, everything is working fine, no issues at all, I just noticed some build up. I don't want to cause a problem that doesn't exist.

Any suggestions would be great.
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Old 02-22-2024, 09:50 AM   #2
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We did the same thing last year. We noticed the trailer running lights were not on so we checked the 7-way and noticed corrosion and dust. I bought a 5-piece set of small files. We lightly filed the connectors to remove corrosion and did the same you have done. I check it whenever we head out somewhere and all is good. I like the Corrosion-X. Good luck
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Old 02-22-2024, 10:17 AM   #3
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Thanks Bubba,

I don't have any cleaning tools available. It is ok to spray the plug and let the solution drain out?
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Old 02-22-2024, 10:28 AM   #4
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Quote:
Originally Posted by Todd G View Post
Thanks Bubba,

I don't have any cleaning tools available. It is ok to spray the plug and let the solution drain out?
Thatís what we did and all worked well. Let the plugs dry well.
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Old 02-22-2024, 01:04 PM   #5
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As part of my annual maintenance, I use contact cleaner and, for the female sides, a pipe cleaner to clean electrical contacts.
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Old 02-22-2024, 01:21 PM   #6
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We have one of these plug holders - cheap and might help keep the crud out.
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Old 02-22-2024, 03:23 PM   #7
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I just neatly tuck the 7-way plug up under the tank cover (between tanks) and it stays up nicely and keeps clean when not in use. Works for me...
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Old 02-22-2024, 10:45 PM   #8
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Iíve sprayed WD40 into the 7-way plug contacts as a preventive maintenance step and never had any problems due to that practice, maybe once or twice a season I do that.
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Old 02-23-2024, 07:11 AM   #9
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Quote:
Originally Posted by Todd G View Post
I don't have any cleaning tools available. It is ok to spray the plug and let the solution drain out?
I used contact cleaner but didn't let it dry. It sent the brake controller into fits until it dried enough. I guess it's not an insulator.

Before my next rip I'm going to use some needle nose pliers and pinch the two blades together a bit. Mine loses contact with the brakes and I'll get a message, "No trailer connected.". The lights work fine, so it's one lug.
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Old 02-23-2024, 11:10 AM   #10
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Quote:
Originally Posted by 1StreamDream View Post
I’ve sprayed WD40 into the 7-way plug contacts as a preventive maintenance step and never had any problems due to that practice, maybe once or twice a season I do that.
Dielectric grease is supposed to be the best to prevent corrosion of the contacts. I grease mine up a couple times a year.
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Old 02-28-2024, 11:27 AM   #11
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7 way cover

I printed a 3D TPU plug for mine. The dielectric grease is a good suggestion.
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Old 02-28-2024, 11:49 AM   #12
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1st use a cap to cover both ends
2nd, with no power, use a thin pipe cleaner with some dielectric grease.
3rd blow out the dirt and grease
4th use a small bit of dielectric grease to cover both the male and female ends
5th place to caps back on
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Old 02-28-2024, 12:54 PM   #13
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Small file until you see shiny metal followed by a little electrical contact cleaner, let dry and then apply dielectric grease and you are good to go.

I also use the Husky 7 way connector Jeff Kim mentioned in post #6, helps keep it clean. It's available on Amazon for $11 "Husky Towing 81497 Univ Connector Storage Kit"

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Old 02-28-2024, 01:55 PM   #14
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I follow the YouTube couple "Thirteen adventures" after meeting them at Alumalina.
This week he discusses a cleaning kit just for the 7-way.
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Old 03-01-2024, 09:20 AM   #15
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Cardboard nail file, cut one end to fit in the female connector, use a small wire brush on the male connector end, blow out debris then hit both connector ends with WD40
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