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Old 10-28-2021, 09:10 AM   #1
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TT Cruiser RV Radiance 28QDSS electrical problem

Hello Everyone:
I'm new owner of 2014 Cruiser RV Radiance 28QDSS 32'. Currently I being working in some DIY on my TT and one of them was to change the 7 way electrical junction box. I took a picture before I disconnected the wire off but I didn't realize that one of the wire was not showing on the picture. this wire is supposed to be the battery "+" that for some reason is connected with a 30amp fuse tail color green. all the cables are connected. but now every time that I connect the battery the 15amp fuse for the awning and slide blow off. Any body here own a Radiance 28QDSS 2014 that can please help me troubleshooting this issue or if is available a better electrical schematic since the one on the owner book is a piece of crap and not match anything on the trailer and you try to contact them for help and they just told you to go to a certified dealer. This Junction box setup it was already like that when I bought it. Everything was working fine, but that old junction box was not water proof and was already corrode it. Me as an old aviation mechanic ,saw this and want to make it waterproof and that's when everything start blowing fuses!. I took pictures to make sure everything was connected back properly and now the Awning and Slide fuse is blowing off. everything else is working fine. I attached a new and better pictures. Hopefully someone can help me with this!
thank in advance
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Old 10-28-2021, 10:13 AM   #2
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This may not be much help to you now, but, I have always been more in favor of wire markers than pictures in situations like this. (was it this blue wire that was connected to the yellow one or was it the other blue wire?)
Sorry I can't be much help because this just looks odd to me. Typically DC voltage color coding is: black is always negative, bright colors (white, blue red....) are positive. Please correct me if TT are not usually wired to code.



https://www.amazon.com/Wire-Marker-K.../dp/B072SVZKQ5
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Old 10-29-2021, 06:50 AM   #3
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Quote:
Originally Posted by ratherberv View Post
This may not be much help to you now, but, I have always been more in favor of wire markers than pictures in situations like this. (was it this blue wire that was connected to the yellow one or was it the other blue wire?)
Sorry I can't be much help because this just looks odd to me. Typically DC voltage color coding is: black is always negative, bright colors (white, blue red....) are positive. Please correct me if TT are not usually wired to code.



https://www.amazon.com/Wire-Marker-K.../dp/B072SVZKQ5

Thank you for the reply, I was surprise to notice that the first time I started working with the wires as well. I thought that this was something normal with the TT since I never have a TT or RV before. Is also a small "NOTICE" sticker on the side of the frame stating that the "BLACK" is positive and "WHITE" is negative/ground.
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Old 10-29-2021, 06:35 PM   #4
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I get cross eyed looking at that wire nest. I would follow the circuits for the offending appliances to see where they go.

Where are the fuses that blow? Are they part of a master fuse panel? Are they scattered around?

Scattered fuses could be connected in almost endless routes. They may originate in the box you show or somewhere else. I can not imagine a routing that would blow fuses through that junction box unless positive and negative wire have been swapped.

Master panel fuses probably have very little to do with the junction box. There will be a 12 + from the junction box to the fuse panel. That 12 volt cable may go to the battery first or to a converter/charger. All the main panel fuses would use the same 12 volt cables and subject to the same failures.
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Old 10-30-2021, 07:48 AM   #5
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I would start with a volt/ohm meter and verify the 7 pin pigtail from tow vehicle with wire colors and what their functions are. Some use yellow,brown and green as running lights and stop/turn and others use different color wires. VERIFY. Make sure all grounds are actually grounds and power is power. Write it all down. Then go to the trailer side and check for grounds, etc. Good luck.
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Old 10-31-2021, 07:50 PM   #6
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Problem solve!!

FINALLY!!


After 3 weeks looking and tracking cables 45 fuses and my hopes almost over, I finally found the problem....Thank to all that take the time to post and provide me good ideas. The problem was a positive cable was peel and was touching the awning ground causing the problem. Once again tank you!!
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Old 10-31-2021, 08:06 PM   #7
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Glad you figured it out. ��
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