You can change your FTP account password via the SiteControl interface.
Please follow the instructions below:
2. On the SiteControl Home page, click FTP in the Quick Access Tools section.
2.1: Alternatively, you can access the FTP Overview through the Website page. Under Manage Services, click Website. On the Website page, click FTP in the File Manager section.
3. On the FTP Overview page, click on the Edit Password button beside the appropriate FTP account.
4. On the next Edit Password page, enter and repeat your new password in line with the provided password complexity requirements. Then click on the Submit button.
5. A green confirmation message will appear to indicate that the password was successfully changed.