Master Spas H2X Trainer 15 Gecko Max Temp Config 

Note: All changes to configurations should be made at your own risk. If you are not comfortable making changes to your swim spa configuration, please contact your dealer or service representative.
This video shows how to update the configuration on the 2023 Master Spas H2X Trainer 15 with Gecko panel to allow the maximum temperature to go to the full 104 degrees Fahrenheit. The factory setting for these swim spas only allows a maximum of 99 degrees. This procedure is only for Master Spas swim spas with the Gecko IN.K1000+ Spa Control System. (According to MS manual, for 2023 model year, this includes all Trainer series models - 12, 15, 15D, 18D, 19, 19D)