First---TurboTax does not send you a check. Ever. Refund checks do not come from TurboTax.
If your direct deposit was sent from the IRS to a closed bank account, the refund goes back to the IRS and then the IRS issues and mails a check to the address on your tax return. That will delay your refund for several weeks.
If you used refund processing, so that a third party bank could take your TurboTax fees from your federal refund, and the refund went to a closed bank account, then the third party bank has to handle the confusion. The third party bank might eventually mail you a check, or they might send the refund back to the IRS and you wait again for the IRS to issue and mail you a check. Either way, your refund will be delayed. We cannot tell you how long it will be delayed. TurboTax has no control.
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
