Please see the chart below which will aid in identifying the type of Topside and Control Pack installed on your spa. Main difference between Topsides 6 and 7 is that TP500 topside includes a "Menu" button that is not available in the TP600 topside.
For assistance or replacement parts, please contact Customer Service.
If your Topside is not shown above, please take a picture and send it through with your service ticket.