OK, I let the spa rest and powered it back up and the heater works. I have the heater set to 101 and the digital panel says 109

Then of course there will be no heat untill the reading goes down after a couple days however, it still has a high reading but the water is now cold and since the reading never went down the heater wont go back on. Whats up with this? Thanks

Got any

could be a sensor out of range, or a bad connection at the circuit board.

What Sensor Where am I supposed to look

temp sensor in the filter compartment, or it's connection to the circuit board