Power Gear Jacks

My Power Gear jacks just quit on me. I had the jacks extended and was level but decided to move coach forward. I retracted the jacks and everything was fine ,I went to extend and they would not extend. I went through all the steps, made sure emergency was on securely, did it a few times to make sure. I get a steady green light when I push the on button but when I push to lower the jacks all I get is a clicking sound from solenoid, no motor or pump noise at all. A few years ago I had a similar issue and a few taps on motor/pump assembly got things working fine for a few years. I did a little testing and I am getting 12.9 volts to motor leads when pushing button so I am assuming everything is fine to the motor. I did check fluid level and that is up to quarter inch below fill point. I am hoping it is not the motor/pump assembly but don't know what else it could be. I tried to google a price for the pump/motor assembly and it tells me every bit of info has to go through an authorized dealer. I need some ideas or suggestions to try that I may have overlooked. I also would like to hear an estimate of this assembly if anyone has had theirs' replaced. I believe the part number, according to my literature, is 13-1100, thanks. Don.