When an empty refrigerator gets filled up all at once, it warms up and can take several hours to cool again. It may appear to not be working, because it is warm and your food is not staying cold. This is extremely common in vacation homes.
Please just put in perishable items first, wait a few hours and put the rest of your items in when it is cold. Leave the door shut as much as possible during this time. It can take 24 hours or more before you notice things are cold again.
The temperature controls should be left at the mid-range setting.
Please do not call for repairs, unless it has been 24 hours with no change.
The ice maker may need to be turned on. It will take a while for ice to be made and dispersed, so you may prefer to purchase ice at one of the grocery stores.