Any idea why one of my K-planes does not work all the time? I know it is not the indicator. I hear the motor working but will not move it. Sometimes it will work for a little bit then get stuck. Any ideas where I need to look or what needs to be replaced? Thanks

The pump is a standard trim pump. Might need to have it tested for pressure. They go bad once in a while. There are rebuild kits.

There are check valves in the pump. I have seen them stick and not allow any fluid to pass. It usually happens if the fluid has gotten some water in it. Try disconnecting the hose at the transom and put it in a bucket and cycle the pump up and down. They also get air locked from time to time and will not move. Let me know what you find after disconnecting and running up and down.
Eddie.

I am assuming when I pull off the hose in the transom, I will empty the fluid. It that correct? I can then cycle the pump and refill the fluid. I dont believe it is airlocked because I have had that happen to another boat and it was just moving real slow. That was an easy fix. I ordered solenoids to see if that is the problem as well.

If the pump is running, the solenoids are good. If it was just clicking when you hit the trim switch, it may be the solenoids. But that is not the case here. You will lose a little fluid when you pull the lines off. You can refill the reservior when you are finished testing it. The point is to see if fluid is coming out when you hit the switch. If it's not, something is wring with the pump. If the fluid is coming out of both lines, something is wrong with the tab. Fluid will only come out of one line when you go up and only one line when you go down.(this is with the lines unhooked) Let me know what you find.
Eddie

thanks for the help. I will start with the hoses next weekend and let you know what I find out.