I have a Jandy lx heater and it’s 14 years old never gave me a problem till now. spa water heat is set to 104 but only heats up to 85. So I I have a service light on for temp sensor. I replaced all the sensors 150,132 reset sensor and temp sensor. I restarted the heater and it did the same thing water only heats to a Certain temperature. I went to check and it looked like the reset sensor was tripped to I resented that sensor and let the heater cool off. Restarted the spa and heater now the heater does not turn on because I’m getting the service light on temp sensor again. I checked the board and it has correct resistance. Any recommendation on what to do next?