Ohio Lensman
Member
My 2004 JLG 1930ES has a "DRIVE PREVENTED-POTHOLE NOT ENGAGED" HELP message and "POTHOLE PROTECTION FAULTY" SYSTEM message.
When the platform is down I'm getting "LT PHP DOWN" (it's up) and "RT PHP UP"(where it is, and should be).
When I raise the platform I get "LT PHP UP" the opposite of where it actually is. (The right PH switch is where it should be.)
If I manually operate the left PH switch nothing happens;but, if, when the platform is elevated, I put a piece of metal on the Elevation Proximity Switch the reading changes to "LT PHP DOWN".
I've adjusted and tested the PHP switches with a multi-meter and they are both working; but I'm always getting a false reading as to the position of the left PH switch . Any ideas as to what the solution to this might be?
When the platform is down I'm getting "LT PHP DOWN" (it's up) and "RT PHP UP"(where it is, and should be).
When I raise the platform I get "LT PHP UP" the opposite of where it actually is. (The right PH switch is where it should be.)
If I manually operate the left PH switch nothing happens;but, if, when the platform is elevated, I put a piece of metal on the Elevation Proximity Switch the reading changes to "LT PHP DOWN".
I've adjusted and tested the PHP switches with a multi-meter and they are both working; but I'm always getting a false reading as to the position of the left PH switch . Any ideas as to what the solution to this might be?