Certain deposits, such as first time ACH purchases, debit or credit card purchases or digital wallet purchases will trigger a temporary (72 hour) withdrawal hold on the account, for security purposes.
If you are unable to withdraw your cryptocurrency balances from Kraken, there may be several reasons for this.
If you make any changes to your password and don’t have either Sign-in 2FA or a Master Key enabled, withdrawals to new withdrawal addresses will be held for 24 hours for security purposes. Withdrawal addresses already added to your account won’t be affected.
You may see a "Balance is insufficient for a withdrawal" error, or the withdrawal page may say that your funds are "Withheld" or that withdrawals are blocked.
Check the following:
Solution: cancel the open orders.
Solution: settle or otherwise close your open spot positions on margin.
Solution: deposit funds in the currency that has a negative balance or exchange other currencies to make up for the negative balance.
An example is if you hold both Bitcoin (BTC) and Ethereum (ETH) in your account, you can't withdraw the total amount in one Litecoin (LTC) withdrawal.
Solution: exchange your balances to the currency you want to withdraw.