| 1. | Turn OFF the Power to the System and Turn it back ON again to put System into Priming Mode. |
| 2. | After about 45 Seconds, Check for Error Messages on the Topside Panel Display. If there is No Error Message, Select "No Error Message" Below. If there is Now an Error Message, Continue to Step 4. |
No Error Messages
| 3. | If there is Now a Message Other than a "CrC" or "CHKSUM FAIL" Error Message, that Message will Now have to be Diagnosed. Select "Message Other than CrC or CHKSUM FAIL" Below. If there is Now a "CrC" or "CHKSUM FAIL" Error Message, Continue to Step 4 |
Message Other than CrC or CHKSUM FAIL
| 4. | If the System Board has already been Replaced in a Previous Step or Previous Test, Select "System Board Replaced Previously" Below. If this is the first time, Continue to Step 5. |
System Board Replaced Previously
| 5. | If the System Board has Not been Previously Replaced, Turn OFF the Power to the System and Continue to the next step. |
| 6. | Remove and Replace the System Board with the Exact Same Part Number System Board. |
| 7. | Verify that All Dip Switches and, if applicable, all Configuration Setting Values are Set Correctly. |
| 8. | After the System is Powered back up, check for proper operation of all Control Panels and all Spa Equipment. |
| 9. | Exit this Test Sequence and Retest as Necessary. |
System Board Now Replaced - Exit Test
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