Having trouble with my Redarc Controller. Here is the problem. Then I will describe how I did the install. (FYI, I am in contact with Redarc about this but no fix yet.)
First, the controller appeared to have installed fine. I even used it for a couple of short trips and it worked great. Then ...
I plugged in our travel trailer to the trailer plug on the LC as I usually do. I then checked all of my lights (turn signals, brakes, etc.) to make sure everything worked which they did. Then I got in the LC and noticed that the light on the Redarc control dial was blinking - green, green, blue. Sort of like a dash, dash, dot. And as I was driving the trailer brakes were not being activated. So I pulled off the highway and tried to diagnose the problem. I downloaded the user manual PDF and found a chart that points out particular issues based on the "codes" which are different colors flashing in certain sequences. I disconnected the trailer, let the car sit, etc. but kept getting the same "error code" (if that is what it is). Since we were only about 10 miles from home we cancelled our trip.
I had the LC in for service so I asked them to clean the socket. The next step was to use a trailer plug circuit detector to see if we were getting current to all of the wires. Plug it in to the "socket" under the bumper of the LC and everything looked good. But the problem didn't go away. Didn't make a difference. I then put dielectric grease on the connections. Still no difference. So I pulled everything out and used a butt connector on the blue wire as I had been told that is the one that controls the braking. Did not fix the problem. Finally, I disconnected the black wire from the LC battery. Voila! The "fault" went away and we headed off on our next trip. It took a while for the controller to auto-adjust but it worked. Arrived at our destination, camped for a couple of days, hooked up the trailer to leave and as soon as I plugged the trailer into the socket on the LC the problem was back. Sigh. Not having time to diagnose it I disconnected the LC battery again (black wire) which reset everything. Then the problem went away and we were able to hook up and get home. But that didn't last. Headed over there yesterday to check things out and the problem is back.
Redarc support told me to test and see if the voltage on the blue wire varies from 4-12 when the brakes are applied but I have neither the tools or the knowledge of how to do that.
As background, here is how I did the original install.
- I had previously been using a Tekonsha P3 with no issues.
- I snipped the wires from the Tekonsha P3 controller "plug" (blue, white, red, black).
- Then I "spliced" them to the Redarc harness matching the colors and using wire nuts wrapped in electricians tape.
- I used industrial strength, double sided velcro tape to secure the main unit to the left side of the silver "box" under the dash. (See attached pic)
- I secured all of the wiring with zip ties to ensure they would not be bouncing around.
- Then I installed the control dial and closed everything back up.
As I indicated earlier, all of this worked great for the first couple of trips. The only change was that I had to replace the control dial as I had originally ordered the wrong switch panel blank.
Also, when I took apart the blue wire and reconnected it with a butt connector I also flipped the main unit so that the colored wires are easier to get to and the cable that runs to the dial is on the far side of the unit. (If that makes sense). I did this simply in case I needed to get in there and fix the splices on the other wires. (Since I secured the main unit with velcro I was able to slide a pot scraper between the velcro layers to remove the unit and then reinstall it.)
Bottom line - has anyone seen this issue? Anything beyond "guesses" as to what may be happening?
Thanks,
Dan
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