DavidFl2

I have a 2005 Sovereign Hot Springs Spa. The breakers do not trip. Periodically the Red and Green lights are on and the spa is perfectly heated with all water flow working. Then, the green light goes off and the red light blinks. Resetting the breakers corrects the issue and the spa begins heating and water begins flowing. The circ pump is operating correctly. Do I need to replace the thermistors? David