I am in the process of setting up an all fridge as my cheese cave and have done some research. According to Gianaclis Caldwell's Mastering Artisan Cheesemaking, she too suggests calibrating the thermostat, using wired shelving (preferably plastic coated, not metal shelves, ), humidifier etc. But she also suggests opening the door daily to help with better air flow.
Kevindv10, maybe this may help you as well
Doris