6521 REV GGG code

thats just the model and revision number of your jandy aqualink software.

That tells which version you have, and is not significant to the operation of the system. It should only display for a few seconds after the controller is powered up. It's hard to say exactly where the problem may be, the controller itself or something in the power center. Some pool techs will carry a portable unit to plug in outside to help see what may be happening. Good luck with it.

it either means your water sensor is bad its the little probe thats clamps ontop of pvc with the probe inside of it, or it simply could have been unpluged somehow from the back of the outside control board it will be on the far left side its a a two wire red and black on the green strip plug

The Windows® Vista Program Compatibility Wizard can allow older programs that were not designed for use with Windows® Vista to run on Windows® Vista.

The Program Compatibility Wizard prompts you to test the program in different modes (environments) and with various settings. For example, if the program was originally designed to run on Windows® XP, set the compatibility mode to Windows® XP and try running the program again. If successful, the program will start in that mode each time. The wizard also allows the use of different settings, such as switching the display to 256 colors and the screen resolution to 640 x 480 pixels.

To run the Program Compatibility Wizard, complete the steps below:

1. Close all programs and windows and return to the desktop.
2. Click the Start button on the Windows® taskbar. The Start Menu will appear.
3. Click on Control Panel. The Control Panel window will appear.
4. Click on Programs. Additional program options will display.
5. In the Programs and Features section click the link Use An Older Program With This Version of Windows. The Program Compatibility Wizard will launch.
6. Click Next to Continue.
7. Click the “I want to choose from a list of programs” radio button and click Next. A list of programs will display.
8. Select the program that is to run in a Compatibility Mode and click Next to continue. A list of Compatibility Modes will display.
9. Click the radio button next to the desired Compatibility Mode and click Next. A list of display settings will display.
   
   NOTE: These display settings are not available options in Windows® Vista. They are only available when running a program in Program Compatibility Mode. The only reason to choose either of these settings is if you are experiencing difficulty installing or running an older application designed to run in Windows® 95, Windows® ME or Windows® 98. If all options remain unchecked, then the current Colors and Screen Resolution settings will not be altered.
   
   By default, Windows® Vista uses visual themes that may change the appearance or behavior of other programs, especially those games or educational programs that include intensive graphics and animation. To prevent the visual themes from affecting these programs, check Disable Visual Themes.
   
   
10. Choose the desired display settings and click Next to continue. Administrator privilege options will display.
11. Choose the desired administrator privilege setting and click Next to continue. A Test Your Compatibility Settings window will display.
12. Verify that the settings are correct. And click Next to continue.
    
    NOTE: If the settings are not correct, click the Back button to return to the previous screen (or screens) and make the necessary changes.
    
    
13. With the correct settings selected and showing in the "Test Your Compatibility Settings" window, click Next. The selected program will launch.
14. Run the program to test the settings.
15. After testing the settings, or close the program to return to the Program Compatibility Wizard.
    
    NOTE: After the program is closed, a window with the question "Did the program work correctly?" will appear. The "Yes. Set this program to always use these compatibility settings" will be selected.
    
    
16. If the program functioned properly using the compatibility mode that was selected above click Next. The Program Compatibility Data window will open.
    
    NOTE: If the program did not function correctly, click "No, try different compatibility settings" and complete the Wizard. After completing the wizard, try the program again.
    
    
17. Choose Yes or Now and click Next to continue. The Completing the Program Compatibility Wizard window will appear. Click Finish to close the window.
18. Launch and use the program.

NOTE: If you have questions regarding the Program Compatibility Wizard or Windows® Vista (or both), contact Microsoft®, or go to http://www.microsoft.com for additional information.