Have a unit that developed code 5a shutdown. Ended up discovering if unplug the small module velcroed to in the back left the lift operates fine. The module has no part number on it. The two plugs on it are labeled px1 and px2. Only px1 is being used and it is cable with a serial connect on the other side. Does anyone know what is?
I installed the box into another lift that was using both plugs and there was no issue on that lift.
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