Adding the battery powered fridge fan inside on a bottom shelf also helps tremendously. The batteries last almost 2 months, fan cost about $12 (10+ years ago) & probably spent $100+ on D batteries in that 10+ years, but never had a fridge issue in 3 RVs in that time either, all worked great, both Dometic & Norcold. It also seemed to slow the frost buildup in the freezer, how I don't know, but DW only had to defrost about once a year while full-timing.
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Full-timed 10+ years
Sold '13 Redwood FB
Traded '13 GMC Denali DRW D/A
Replacement undetermined
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