- Jul 15, 2012
- 604
- Pool Size
- 30
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Hayward Aqua Rite (T-15)
Hello: My spa heater is only heating water to 101-102 degrees max. The RayPak heater thinks water is 104 and that is the max setting. I see two options: (1) calibrate the heater to cut off at higher max temperature (106-107) and rely on Jandy pool controls to keep Spa no hotter than 104; or (2) replace the temperature sensor on the heater, which probably has scale and corrosion after 4 years of use. I see the Raypack 009577F Temperature Sensor is pretty available and cheap, but how easy is this part to change. Are there good instructions anywhere? I could not find them on web (except as part of PC board change)