MemberDecember 6, 2017 at 10:20 pm
J3 on the acorn 180 T565 pcb is a self leveling safety mode directly after programming. It really shouldn’t come up unless you have just programmed the unit and you’re taking the lift up for the first time. During the first run up it will display j3 and the program will even out any rough spots, the lift may seem very shaky whilst in j3 mode but should smoothen out afterwards.
The only times I’ve experienced j3 appearing are after a total power failure, it batts have died or pcb fault due to static as these new PCB s are extremey sensitive.
hope this is of some help
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