The server farm account should not be used for other services.

RECTELLA\sp_sql, the account used for the SharePoint timer service and the central administration site, is highly privileged and should not be used for any other services on any machines in the server farm. The following services were found to use this account: SharePoint - 80 (Application Pool)
SPSearch4(Windows Service) 

Browse to http://sharepoint02:3792/_admin/FarmCredentialManagement.aspx and change the account used for the services listed in the explanation. For more information about this rule, see "http://go.microsoft.com/fwlink/?LinkID=142685".