We have a 2003 Camelot Dynasty Spa. Recently the 3 dots began flashing. We shut off the circuit breaker over night and next morning turned breaker back on. The spa heated to 97 and the dots were not flashing. Went out later at the spa was at 100 and the dots were flashing again. Could this be a thermostat problem? We recently had a power surge before the dots began flashing.