You ONLY enter the W2 box 12 code W amount ... later when it asks for contributions to the HSA that you made Outside of payroll you should not have entered anything from the box 14 amount ... return to that section and remove the erroneous entry.
The HSA is handled in 3 parts in the TT program :
First the contribution:
https://ttlc.intuit.com/replies/4557768
https://ttlc.intuit.com/replies/4785646
Next the limitations screen to confirm you are eligible to make the contributions:
Until you complete the HSA portion of the TurboTax interview to establish your eligibility for an HSA contribution, TurboTax will treat the amount entered on the W-2 form as an excess HSA contribution.
https://ttlc.intuit.com/replies/4788059
And lastly any distribution:
https://ttlc.intuit.com/replies/4787864
