For rental property assets, they are normally capitalized and depreciated over time. Appliances would be depreciated over 5 years. However, for qualifying assets that cost less than $5000 you have the choice to either capitalize and depreciate, or to just deduct the full cost as an expense in the year of purchase. Appliances that cost less than $5000 qualify to be expensed.
When working through the rental expenses section, the very, very, very *VERY* last screen of that section is for miscellaneous expenses not covered in other expense categories. Just enter your appliances there and the cost, click Continue and press on.
Overall, depreciating the appliances over 5 years will have minimal affect on your tax liability (if any at all due to every increasing carry forward losses) so I suggest you just expense them. That way, the expense is carried forward and unlike depreciation does not have to be recaptured when you sell the property in the future.
