Hello, every time it rains really hard my Pentair Minimax 400 NT TSI won't start up for about a week after the rains are gone. It goes through the normal ignition cycle, the burners come on, stay on for about 2-3 seconds, and then I hear this clicking sound and it turns off. It cycles like this three times and then the E04 light comes on and it locks out. Shutting the circuit breaker off for several minutes has no effect. The unit was installed new in early 2004, but this problem started occuring only in the past year.