I just bought a house which has an ingournd pool/spa combo. I have the Jandy Aqualink RS control and pump plus two heaters (STA-RITE Max-E-Therm 400 model SR400n gas heater and AquaHeat LS Model MBP-150A Heat pump). If I want to heat the pool quickly I use the gas heater, if I want to maintain the heat I use the Heat Pump. I have gotten the pool temperature up to 78 with no issues. When I turn the system to "SPA Mode" to run the spa the Gas Heater comes on and the spa starts to heat up. When the temperature hits 85 the gas heater turns off but the Aqualink system says the heat is still on. I have tried it multiple times with the same result. I searched around and found where it said the Maximum Temperature set point on the STA-RITE gas heater could be set to 85 which would turn off the gas heater once it hits 85. I found the instructions online to set the Max temperature higher on the gas system. When I open up the gas heater and press the yellow button on the back of the board to set the max heat the system does not turn on like it says it should. Has anybody else run into this problem with a STA-RITE heater? Is there another way to try and set the max heat? I really would like to use my spa but right now it is useless and I am frustrated. Any help would be greatly appreciated.