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For settings, temperature is easy - set to your preference.
Typical fridge temperatures are around 2-4°C and freezer temperatures are -18°C, however, raising the freezer temperature can save a small amount of power as the compressor will not need to run as often. It is not recommended to raise the fridge-side temperature at all, unless it is only filled with items that will not spoil at warmer temperatures.
To offset food safety concerns by increasing the freezer temperature, it is recommended to put "safer" foods/items, like ice cube trays or cold packs, on the top of the items in the freezer side so that they act as a "shield" for any warm air that enters from opening the lid.
The other setting that is interesting is that for battery voltage protection. For all battery types, the recommended initial setting is HIGH.
If the fridge will not start, it can be changed to medium.
Above is a tech sheet for the C69 - current required at 12v it 6.3 amps - this information will help with power consumption calculations including those for solar panels or battery capacity so one can have a starting point for runtime. Running the unit with as much fresh air circulation as possible helps.
Example for estimating fridge run-time:
2x 100 amp hour LiFePO4 batteries, 90% depth of discharge, 6.3 amp when running, 30% expected duty cycle
200 amp hour x 0.90 DoD ÷ 6.3 amp ÷ 0.30 = 95 hours of battery life, for solely running the fridge.
This results in approximately 4 days of battery life if only the fridge is used. This calculation is an approximation only, real-world use will differ, and it is easy to underestimate duty cycle.
NOTE: The cigarette lighter style plug for the 12V system that powers the fridges can come loose in rough conditions. If you are experience low voltage/shut down of the fridge, but the system voltage is above 12.3 volts and the other DC systems are performing well - check this connection! It is behind the fridge between it and the 7 pin box/battery box.
If you have technical concerns or failures with the fridge, the warranty is administered by Truma.
The warranty on this fridge is for 12 months from the date of purchase, or 24 months if you register the product within the first two months of ownership!
Contact:
Email: info@trumacorp.com
It is much faster if on first contact, you send photos of the issue (if possible,) and if you include:
Your address/the address where the trailer is stored (for future service if required.)
Product model (on data tag.)
Product serial (on data tag.)
Date of delivery of trailer
Proof of date of purchase (OGT Invoice) If you need a copy of your invoice, email warranty@offgridtrailers.com
Finally, if you'd like a second cord for the fridge (for use if you have it removed from the trailer, or for a spare, Truma sells the cord on its own. The part number is 40092-000-91. You can email Truma at orders@trumacorp.com (including your address, so you can get a quote with shipping,) or phone 855-558-7862.