1. To RAISE the jacks takes no power, just release the Joystick
2. I think you meant EXTEND the jacks. You RAISE the motorhome, you EXTEND the jacks to do that.
3. If you get a click on your system, either your large battery cable is dead(no 12 volts) or the solenoid is bad. There is only 1 solenoid on your HWH pump that has wires. The 2 LARGE posts---jump across and that will bypass the solenoid and supply power direct to the pump motor. IF the battery power is good the pump motor should run, if NOT, then the Pump electric motor is probably bad. The MAIN thing is- to verify that you have GOOD 12 volt supply power to that solenoid from the battery. Doug