"Service unavailable" when attempting to add a United States (US) bank account

The "Service unavailable" error when adding a bank account for United States (US) domestic wire funding, means that you are either entering an ACH routing number instead of a wire routing number, or have reached the limit of adding two bank accounts.

Ensure that you are entering a wire routing number and not an ACH routing number when adding a US checking account. Please contact support if you need to remove one or more of your current checking accounts.

Kraken does not currently support ACH bank transfers.