Why am I not getting credit for all rental expenses?

I have reported $6800 income on a rental property and have entered $5000 in rental expenses, mainly repairs and utilities..  Turbo Tax lets me enter it all, but at the end shows me with $4000 in net income, rather than $1800.. (I've rounded the numbers for simplicity sake.)  TT gives me no error message, but nothing I do results in my getting the full benefit of my expenses.  On a separate rental property, the numbers are as expected.  Any ideas?