Ray Kimsey

I have a 2020 model with the Norcold. I have attached some service manuals I found that might be of help. I found them back when I changed out a power board. Hope they help. I never tried doing what you are doing. Norcold board diagnostic.pdfNorcold board diagnostic.pdfNorcold board diagnostic.pdfNorcold board diagnostic.pdf Norcold Service Manual.pdf Norcold power board changeout.pdf

I would replace the entire shock. The cost of the shocks was not that much and I expect yours are pretty well worn out. I replaced mine on my 2020 trailer about two years ago and what a difference it made.

Seems the problem was that the gray tank was full but for others: On older trailers (mine for example, a 2020) you might have a manual gray tank valve. Pulled out is open allowing the gray tank to vent as water from kitchen sink flows in. If it is closed (pushed in) then water could back up into the shower drain if you run a lot of water in the sink. Also, if you leave the valve open while driving down the road, then gray water could slosh up onto the floor from the shower drain.

In 2020 Oliver did not offer lithium batteries so either you have a special model or someone has taken the camper back in to the factory for an upgrade. The 2020s did not offer a solar disconnect or a battery disconnect. I have modified my 2020 to add lithium and replaced a lot of the older equipment. That location does look like where the wiring from the solar panels would be located, so that would be my guess too, the solar disconnect.

I have 2020 Elite 2 and over 40,000 miles on our trailer with no problem towing with tanks full or partially full.

I was assuming you could turn the valve with some type of pliers, but I guess not. Can you possibly disconnect thecold water line from the shutoff valve and cap it. Then you could drain the Truma.

To close the Truma valve on my 2020 you turn the handle 1/4 turn counter clockwise. To open 1/4 turn clockwise. With the handle on, the handle points to the rear of the trailer when closed and to the street side when open.

When I did this I had to purchase a 16' extension for the HDMI and USB cables (Amazon) which was just long enough for my needs.

I tried also. There does appear to be an obstruction. I ran the cable along the back of the cabinet to the rear of the trailer and then ran it down and under the basement and over to where I installed the cerbo gx. Was very easy to let it pass down in the rear.

I have a 2019 RAM 1500, so I am not sure if that qualifies as a late model anymore, and it has worked great for me. The only issue I have had was it would not recognize my iPhone at first. Service replaced the USB port on the truck and ever since then no issues. As far as infotainment issues, I had to reset it after replacing the battery once. After the reset all apps came back like normal.

I have a 2020 and here is where it is located. It is the wire on the right (labeled in picture with notebook paper and tape). It is on the driver side. Picture is looking forward through the hatch underneath bed next to cabinet. I disconnected and taped over the end. In the first picture the charge wire is attached in the second, I have disconnected, covered/sealed and stored next to solar shutoff.

Not sure about 2017 but 2020 did not. I added one when I upgraded my batteries.

I last ordered off Amazon back in 2021. They seem to last a year. Of course they are not in stock now, but here are the measurements from what I ordered: Pack of 100 Rubber Grommets: 1/4 Inside Diameter - 3/32" Groove Width - Fits 3/8" Drill Holes.

Glad it was helpful! It allowed me to diagnose a power board issue. Saved me some money.

Burnham Point State Park near Cape Vincent. Great place. Near Boldt Castle, buy tickets at the boat house and take ferry from there. Includes ticket, plus ferry over to the castle.