What exactly do you mean by your "HSA contributions form under deductions"? Are you looking at an actual tax form, such as Form 8889? Or are you looking at a screen in TurboTax, such as the screen that says "Let's enter your HSA contributions" or "Your HSA Summary"?
And what do you mean by your "employer contributions (box 12)"? What is the exact description of the line that shows $0?
If you can, post a screen shot showing the incorrect employer contributions.
Does the W-2 that you got from your employer have the HSA contributions amount in box 12 with code W? Go back to where you entered your W-2 in TurboTax and make sure that the amount is entered in box 12 with code W. Try deleting the code and amount and re-entering them.
