Vehicle report
Technical service bulletins are instructions a manufacturer sent its dealers about a known fault. They are not recalls and the work is usually not free, but they are the clearest signal of a problem the manufacturer already knows about.
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The refrigerator is not wired to the 12V DC power supply. As such, the refrigerator will only operate using L.P. gas in certain 2017 Salem - SMT197BH and 2017 Wildwood - WDT197BH recreational vehicles.
Complaint counts are reports filed with NHTSA, not failure rates. A common model collects more of them than a rare one that breaks more often.