I have replaced both thermostats and both elements in my hot water heater. Everything is wired properly (this has been checked and recheck against manufacturer directions and all parts are what they should be). It came on one time for approx. 45 seconds and blew the breaker. Rechecked everything again, flipped breaker on and nothing happens. Both thermostats and elements are getting power according to my tester yet it won't come on and heat the water. Any suggestions???? Please help asap, been taking cold showers for 3 days!!Thanks!