Brand New Pentair masterTemp 400 heater. After recent big Texas freeze, power was cut off for 3 days. Can’t remember if I had power to Heater once power came back, but don’t believe so. Replaced Basic Manifold to get pool back up and running. But no power at all to heater control panel. All breakers are fine and reset. Any suggestions on how to get power back to the heater so it can run again? Thanks in advance.