DesertMiner

Something that may help to keep the algae at bay is to fill the tank with non bio-diesel fuel. Less water and add a good antigel to keep the fuel protected for lower temps.

What outside temps are you looking at during the time the RV is “shut down”?

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Anything else seem out of the norm...? All other gages work ok? Did you do anything to the truck right before you noticed the DID dead? Fuses at battery area checked? Batteries and grounds check and clean and solid?

Check your frame in that area for possible cracking or other damage.

Call the dealer with your last 6 of your VIN and get the latest part number. You can then look for a “cross over” bag from Goodyear or Firestone. You can Then search for the best price.

Put the controller as close to battery as possible. What type of controller...? What do you hope to charge with only a single 120 watt panel? 10 ga solar wire would be fine for that distance.

http://www.rvnetwork.com/search/?&q=Togo&search_and_or=or

Next time you're near a truck stop with a "CAT Scale" run your truck and trailer loaded across the scale and get yourself weighed. You will then know how much each of your truck axles is carrying and what your axles on your trailer are carrying. You will then have your "axle weights". With these weights you can determine the correct tire pressure(s) for the load carried.

Do your research... older tech on the cell modem does not have all the advantages of the newer stuff. Could be a bit of a limitation in some instances. Sure can’t beat he $360 a year plan!

More info might help...,

Do you do Facebook? Lots of pics in the various HDT groups.

No one uses a “strainer” in their drain to catch all that nasty stuff?

Starter solenoid? Check all of your grounds and the fuses at the battery compartment area.

Yep....

Yep transfer switch and this..... https://www.marinco.com/en/6373el-b

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Did you ever find the problem? What was the fix?

With your system you really should research the hardware limitations of the C2. It’s older technology and doesn’t include some of the newer “bands”! Might not be your best choice in hardware but could be a nice inexpensive cellar option.

Amazon has all of them in 100 count bags...010, 110, 112.

O-rings 1/4 O-ring 10mm x 6mm x 2mm # 010 Old part # 85108484 New part # 85146177 1/4 brass collet part # 85108476 3/8 O-ring # 110 Old part # 85108485 New part # 85146178 3/8 brass collet part # 85108474 1/2 O-ring #112 Old part # 85108486 New part # 85146179 1/2 brass collet part # 85108475 5/8 O-ring Part # 85108487 5/8 brass collet part # 85108481 Wet tank O-ring part # 85108488

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Also did it throw a code?

Remove the unit from the dash and clean the connector.