[Richard]

Jim,

You are a very tech savvy guy. I have used a data logger to help diagnose intermittent behavior. I used one like this to figure out what was shutting down my Aquahot mid cycle.

https://www.dataq.com/data-logger/

I have one of their products but there are plenty of suppliers.

[hypoxia]

Richard, I'll look into that. Just arrived at homebase and have a project which is testing my endurance or lack thereof. Never thought I would be hanging drywall in my 7th decade but I do enjoy the camaraderie of my "Superintendent" who has a 35 year history with me.

[BusNit]

God Bless you Jim. That's awesome! (Not that I want to be in your position today to hang drywall!) It is really surprising what we can do when we least expect it. Keeps us young. (Wish my brain stayed that way...)

[hypoxia]

"SOLVED" I think!  Tracing the DEF Line Heater wiring a single orange wire runs from the Rear Load Center and is spliced to all 3 DEF Line Heaters EXACTLY centered over a frame rail above the tag steering accumulator.  I could barely touch it and ran my bore scope in there to see how it was assembled.  I decided to cut the splice out & look what I found.  The splice was the 3 DEF Heater wires twisted together with the power wire laid on them and a drop of solder to make the connection.  Cold solder joint on 3 the strands of the power wire, the remaining strands were not attached in any way, and NO mechanical connection.  It was all held together with shrink tubing.

                   

[RobSC]

Nice job on that, considering the difficulty working in such a confined area.  It's really tight under there and tracing wires is going to test anyone's best efforts.  That wire connection, if it was done by Newell is really disappointing.

[hypoxia]

Nice job on that, considering the difficulty working in such a confined area.  It's really tight under there and tracing wires is going to test anyone's best efforts.  That wire connection, if it was done by Newell is really disappointing.

Thanks Rob, I started another thread on Solder Sleeves to see what others are thinking.  I wonder how many other Solder Sleeves are lurking inside wiring looms waiting for an opportunity to drive us crazy with intermittent problems.

I'm getting my notes together to post a complete report.

[CaptainGizmo]

HURRRRRAYYYYY!!!!! NICE JOB!!!!

Those joints (a drop of solder) DISGUST ME!! And will probably put Simon over the edge! LOL

As to the Solder Sleeves, those sure are awesome…in theory. I just don’t have any empirical knowledge for you; again, perhaps Simon has used them.

I’m sure most of us are the traditional HEAT THE CRAP OUTTA BOTH SIDES and LAY A LINE A SOLDER kinda guys. But, admittedly, I’m now pretty much a fan of using high quality crimps WITH waterproof adhesive shrink.

I’d say that the entire newer coaches are nothing but crimps, but I sure wish they were all the waterproof style!!