Originally Posted by Gary N.
I've learned the hard way that you can't leave these solenoids on too long while you wait for the jacks to retract. And the colder it is the longer they take to retract. I now go out with an iron pry bar and "help them up". Starting at the back two. Usually by the time I get them up the fronts are stowed. Last time I had to replace a solenoid the tech gave me a sheet of paper from HWH that explained how long you could leave the solenoid energized depending on the ambient temp. If you leave them on too long they get hot and burn out. I haven't had to replace any since I started helping the jacks to retract. The whole process only takes a few minutes. I know it's not something you should have to do but it's cheaper then replacing solenoids all the time. I've also had all of the springs replaced but that didn't make any difference in the retract speed.
I hear you. I just burned up 4 solenoids for the jacks by hitting the store button too many times trying to get two jacks to retract. Turned out to be the shuttle valve.
From now on, I'm going to time the retract cycle and when its too long, I will stop the retract and let the valves cool. Remember that when you hit the retract buton, the system throw full amps/volts to ALL 4 SOLENOIDS!!