2006 Jacuzzi J-480 watchdog error

[Tcoleman]

I have a --- error message. I have replaced the temp sensor and the hi limit sensor and still have the problem. Any ideas or help appreciated.

[Tman122]

Bump

[Compatico]

I have a --- error message. I have replaced the temp sensor and the hi limit sensor and still have the problem. Any ideas or help appreciated.

I'm not a tub tech but I know a thing or three about electronics. It sounds like the jets are working and the heater comes on to maintain temp? I'm guessing it's the latter as you already tried changing 2 sensors. Is the heater working?