Hydraulic Leveling Control Panel, etc.

[JayT_B]

About two weeks ago, I turned on the the gray and black water tank heaters. the blue switches lit up. Last week I went to raise the front landing gear just a bit. The panel would not turn on. Today I noticed our factory installed Jaboni Solar charge control panel also will not power on. The blue tank heater switches are no longer illuminated. This is the first time we have ever used the tank heaters. Is it possible the tank heaters could have malfunctioned and somehow taken out the power to the hydraulic panel for the jacks as well as the solar charge control panel?