As JamesG1 says above, I suspect you have entered your HSA twice - once when you entered your W2 and again on the Let's Enter Your HSA Contributions.
When reporting HSA contributions under Federal / Deductions & Credits / Medical / HSA MSA Contributions, did you report the amount in box 12 of the W-2 at the screen Let's enter xxx HSA contributions? If so, you may have doubled the amount of your contributions.
Only enter the amount when you are entering your W2, box 12, code W. Don't enter that amount anywhere else. TurboTax will carry the number over automatically from your W2 entry.
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