Stumped 773f

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mrWhipper

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Joined
Apr 29, 2023
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I have a 773F. It is throwing a code HF 1-6 on BOSS. (Manual says this code means the hydrostatic charge filter sensor has no signal). The bics is flashing 3 times on the valve light. I have replaced the valve stem and the magnetic coil solenoid. I also tested all wires to make sure I had continuity and all passed. I then thought it was the bics unit, but I hot wired around that to no avail. It seems that if start it and hit the pedals right away, the lift/tilt works more often. If I wait, it does not work at all. When it does work the hydraulics stay working until I turn it off. Any thoughts on what to do to solve intermittent tilt/lift not working? Would the charge filter sensor cause the lift/tilt not to work?

Any guidance would be sincerely appreciated.
 
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