I believe you may actually have 4 fans mounted in the top of the cavity and yes they are noisy. It is something you get used to after time but if they are not running frequently enough or quit your fridge would overheat and cause the solution to cook causing debris/crystals that would eventually block your cooling unit and it would fail!
Some of us have gone further and added an additional fan pointing directly out the top vented cover plus improved the air flow out the top of the cavity with better curved flashing to eliminate any dead air flow spaces.
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Darwin & Maureen DeBackere
Minnedosa, Manitoba, Canada
2011/3500/Silverado/4x4/DRW/Duramax
2017/3721RL/Legacy Pkg./Pressure-Pro
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